Zone Forecast Product
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
398 FPUS55 KPIH 211832 ZFPPIH Zone Forecast Product FOR Idaho National Weather Service Pocatello ID 1231 PM MDT Fri Aug 21 2026 This forecast may not be representative of the exact location you are interested in. For a site-specific forecast, please visit weather.gov/Pocatello and click the map on the main page. IDZ072-221000- Sawtooth/Stanley Basin- Including Stanley 1231 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy. A chance of rain showers in the evening...then a slight chance of rain showers after midnight. Lows 50 to 60. .SATURDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs 76 to 86. .SATURDAY NIGHT...Partly cloudy with a slight chance of rain showers in the evening...then mostly cloudy after midnight. Lows 46 to 56. .SUNDAY...Sunny. Highs 72 to 82. .SUNDAY NIGHT...Mostly clear. Colder. Lows 40 to 50. .MONDAY...Sunny with a slight chance of rain showers. Highs 74 to 84. .MONDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 43 to 53. .TUESDAY...Mostly sunny. Highs 75 to 85. .TUESDAY NIGHT...Mostly cloudy. Lows 44 to 54. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 73 to 83. Lows 40 to 50. .FRIDAY...Sunny. Highs 71 to 81. $$ IDZ073-221000- Sun Valley Region- Including Ketchum, Sun Valley, and Galena 1231 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy. A chance of rain showers in the evening...then a slight chance of rain showers after midnight. Lows 53 to 63. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 78 to 88. .SATURDAY NIGHT...Mostly cloudy with a chance of rain showers. Lows 50 to 60. .SUNDAY...Sunny. Highs 76 to 85. .SUNDAY NIGHT...Mostly clear. Lows 47 to 57. .MONDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 76 to 85. .MONDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 48 to 58. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 77 to 86. .TUESDAY NIGHT...Partly cloudy. Lows 49 to 59. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 76 to 85. .WEDNESDAY NIGHT THROUGH FRIDAY...Partly cloudy. Lows 45 to 55. Highs 73 to 83. $$ IDZ052-053-221000- Arco/Mud Lake Desert-Upper Snake River Plain- Including Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, and St. Anthony 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 61 to 68. Southeast winds around 10 mph. .SATURDAY...Mostly cloudy in the morning...then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 85 to 92. East winds up to 10 mph...shifting to southwest in the afternoon. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Cooler. Lows 54 to 62. Southwest winds around 10 mph...shifting to northeast up to 10 mph after midnight. Chance of precipitation 40 percent. .SUNDAY...Mostly sunny. Highs 82 to 90. South winds around 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows 53 to 61. Southwest winds 10 to 15 mph. .MONDAY...Mostly sunny. Highs 81 to 89. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 52 to 60. .TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs 82 to 89. Lows 53 to 61. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 82 to 89. .WEDNESDAY NIGHT...Mostly cloudy. Lows 51 to 60. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs 79 to 87. Lows 50 to 58. $$ IDZ051-221000- Shoshone/Lava Beds- Including Shoshone, Richfield, and Carey 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 64 to 71. Southwest winds around 10 mph...shifting to northeast after midnight. .SATURDAY...Mostly sunny. A slight chance of rain showers in the morning...then a slight chance of showers and thunderstorms in the afternoon. Highs 89 to 96. East winds around 10 mph... shifting to southwest in the afternoon. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly cloudy with a slight chance of rain showers. Lows 60 to 67. South winds around 10 mph...shifting to northeast up to 10 mph after midnight. Chance of precipitation 20 percent. .SUNDAY...Mostly sunny. Highs 86 to 93. South winds around 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows 57 to 64. Northwest winds up to 10 mph. .MONDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 85 to 92. .MONDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 58 to 65. .TUESDAY THROUGH FRIDAY...Partly cloudy. Highs 83 to 93. Lows 55 to 65. $$ IDZ056-057-221000- Southern Hills/Albion Mountains-Raft River Region- Including Albion, Almo, Malta, Rockland, and Holbrook 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy with a slight chance of rain showers. Lows 62 to 71. South winds 10 to 15 mph. .SATURDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs 87 to 94. South winds 10 to 15 mph. .SATURDAY NIGHT...Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening...then a chance of rain showers after midnight. Lows 58 to 68. South winds around 10 mph. .SUNDAY...Mostly sunny with a chance of showers and thunderstorms. Highs 83 to 91. Southwest winds up to 10 mph. .SUNDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 56 to 66. Southwest winds up to 10 mph. .MONDAY...Partly sunny with a chance of showers and thunderstorms. Highs 83 to 90. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 55 to 65. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 84 to 91. .TUESDAY NIGHT...Mostly cloudy. Lows 57 to 67. .WEDNESDAY THROUGH FRIDAY...Partly cloudy. Highs 82 to 92. Lows 54 to 64. $$ IDZ058-059-221000- Marsh and Arbon Highlands-Franklin/Eastern Oneida Region- Including Inkom, McCammon, Downey, Lava Hot Springs, Malad, Preston, and Thatcher 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy with a slight chance of rain showers. Lows 59 to 69. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 83 to 93. .SATURDAY NIGHT...Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening...then a chance of rain showers after midnight. Lows 56 to 66. .SUNDAY...Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 81 to 91. .SUNDAY NIGHT...Partly cloudy with a slight chance of rain showers. Lows 54 to 64. .MONDAY...Partly sunny with a chance of showers and thunderstorms. Highs 79 to 89. .MONDAY NIGHT...Mostly cloudy. Lows 53 to 63. .TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs 81 to 91. Lows 54 to 64. .WEDNESDAY NIGHT...Mostly cloudy. Lows 53 to 63. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs 79 to 89. Lows 52 to 62. $$ IDZ054-221000- Lower Snake River Plain- Including Pocatello, Blackfoot, American Falls, Shelley, and Fort Hall 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy with a slight chance of rain showers. Lows 62 to 69. South winds around 10 mph. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 85 to 93. Southeast winds around 10 mph...shifting to southwest in the afternoon. Chance of precipitation 40 percent. .SATURDAY NIGHT...Mostly cloudy. A slight chance of rain showers in the evening...then a chance of rain showers after midnight. Lows 56 to 63. Southwest winds around 10 mph...shifting to east up to 10 mph after midnight. Chance of precipitation 30 percent. .SUNDAY...Mostly sunny. Highs 83 to 91. Southwest winds around 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows 55 to 62. Southwest winds around 10 mph. .MONDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs 82 to 90. .MONDAY NIGHT...Mostly cloudy. Lows 54 to 61. .TUESDAY THROUGH FRIDAY...Partly cloudy. Highs 81 to 91. Lows 52 to 62. $$ IDZ075-221000- Wood River Foothills- Including Hailey, Bellevue, and Picabo 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 60 to 70. Southwest winds 10 to 15 mph...shifting to north after midnight. .SATURDAY...Mostly sunny with a slight chance of rain showers. Highs 81 to 91. East winds up to 10 mph...shifting to southwest in the afternoon. .SATURDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 55 to 65. West winds around 10 mph in the evening...becoming light and variable. .SUNDAY...Sunny. Highs 78 to 88. Southwest winds around 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 53 to 63. Northwest winds around 10 mph. .MONDAY...Mostly sunny. Highs 78 to 88. .MONDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 54 to 64. .TUESDAY THROUGH FRIDAY...Partly cloudy. Highs 77 to 87. Lows 52 to 62. $$ IDZ069-221000- Lost River Range- Including Borah Peak 1231 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 59 to 66. .SATURDAY...Partly sunny. A slight chance of rain showers in the morning...then a chance of showers and thunderstorms in the afternoon. Highs 77 to 87. .SATURDAY NIGHT...Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 55 to 62. .SUNDAY...Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 76 to 86. .SUNDAY NIGHT...Partly cloudy. Lows 52 to 60. .MONDAY...Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 75 to 85. .MONDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 53 to 60. .TUESDAY...Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 75 to 85. .TUESDAY NIGHT...Mostly cloudy. Lows 53 to 61. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 75 to 85. .WEDNESDAY NIGHT...Mostly cloudy. Lows 52 to 59. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs 73 to 83. Lows 50 to 57. $$ IDZ064-221000- Big Hole Mountains- Including Victor 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy. A chance of rain showers after midnight. Lows 58 to 65. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 81 to 88. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 55 to 62. .SUNDAY...Partly sunny with a chance of showers and thunderstorms. Highs 78 to 85. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 54 to 61. .MONDAY...Mostly sunny with a chance of showers and thunderstorms. Highs 77 to 84. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 52 to 59. .TUESDAY...Mostly sunny with a slight chance of rain. Highs 78 to 85. .TUESDAY NIGHT...Partly cloudy. Lows 52 to 59. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 78 to 85. .WEDNESDAY NIGHT...Mostly cloudy. Lows 52 to 59. .THURSDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 76 to 83. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 50 to 57. Highs 75 to 82. $$ IDZ063-221000- Caribou Range- Including Wayan and Swan Valley 1231 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy. A chance of rain showers after midnight. Lows 55 to 64. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 80 to 89. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 51 to 60. .SUNDAY...Partly sunny with a chance of showers and thunderstorms. Highs 78 to 86. .SUNDAY NIGHT...Partly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 48 to 58. .MONDAY...Partly sunny with a chance of showers and thunderstorms. Highs 77 to 85. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 47 to 57. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 78 to 85. .TUESDAY NIGHT...Partly cloudy. Lows 48 to 58. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 78 to 86. .WEDNESDAY NIGHT...Mostly cloudy. Lows 47 to 57. .THURSDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 76 to 83. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 46 to 56. Highs 75 to 82. $$ IDZ068-070-221000- Lost River Valley-Challis/Pahsimeroi Valleys- Including Howe, Arco, Mackay, Chilly, and Challis 1231 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 57 to 65. Southeast winds up to 10 mph...shifting to southwest after midnight. .SATURDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs 80 to 90. Southeast winds up to 10 mph... shifting to southwest around 10 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 53 to 61. West winds up to 10 mph...shifting to south after midnight. .SUNDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 79 to 89. South winds 10 to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 59. West winds around 10 mph. .MONDAY...Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 78 to 88. .MONDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 51 to 59. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 77 to 87. .TUESDAY NIGHT...Mostly cloudy. Lows 51 to 60. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 77 to 87. .WEDNESDAY NIGHT...Mostly cloudy. Lows 49 to 58. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs 76 to 86. Lows 48 to 57. $$ IDZ066-221000- Centennial Mountains - Island Park- Including Island Park and Kilgore 1231 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy. Lows 55 to 63. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 79 to 87. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Cooler. Lows 48 to 57. .SUNDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 76 to 84. .SUNDAY NIGHT...Partly cloudy. Lows 46 to 55. .MONDAY...Mostly sunny. Highs 76 to 84. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 45 to 54. .TUESDAY THROUGH WEDNESDAY...Partly cloudy with a slight chance of showers and thunderstorms. Highs 76 to 84. Lows 45 to 55. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 44 to 54. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs 73 to 82. Lows 42 to 52. $$ IDZ067-221000- Beaverhead - Lemhi Highlands- Including Dubois, Spencer, Edie School, and Small 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy with a slight chance of rain showers. Lows 57 to 67. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 79 to 89. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Cooler. Lows 52 to 62. .SUNDAY...Partly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 77 to 87. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 60. .MONDAY...Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 76 to 86. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 50 to 60. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 76 to 86. .TUESDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 50 to 60. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 76 to 86. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 49 to 59. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs 74 to 84. Lows 47 to 57. $$ IDZ065-221000- Teton Valley- Including Ashton, Tetonia, and Driggs 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy. A slight chance of rain showers after midnight. Lows 57 to 64. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs around 86. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Cooler. Lows 51 to 58. .SUNDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 80 to 87. .SUNDAY NIGHT...Partly cloudy with a slight chance of rain showers. Lows 49 to 57. .MONDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 79 to 86. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 47 to 55. .TUESDAY...Mostly sunny with a slight chance of rain. Highs 80 to 87. .TUESDAY NIGHT...Partly cloudy. Lows 48 to 56. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 80 to 87. .WEDNESDAY NIGHT...Mostly cloudy. Lows 47 to 55. .THURSDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs around 81. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 45 to 54. Highs 77 to 84. $$ IDZ062-221000- Blackfoot Mountains- Including Grace, Soda Springs, Henry, and Bone 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy. A slight chance of rain showers after midnight. Lows 57 to 67. .SATURDAY...Partly sunny. A chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 80 to 90. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Cooler. Lows 52 to 62. .SUNDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 77 to 87. .SUNDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 51 to 61. .MONDAY...Partly sunny with a chance of showers and thunderstorms. Highs 76 to 86. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 50 to 60. .TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs 76 to 86. Lows 51 to 61. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 77 to 87. .WEDNESDAY NIGHT...Mostly cloudy. Lows 50 to 60. .THURSDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 75 to 85. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 49 to 59. Highs 74 to 84. $$ IDZ060-221000- Bear River Range- Including Emigration Summit 1231 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy. A slight chance of rain showers after midnight. Lows 64 to 72. .SATURDAY...Partly sunny. A slight chance of rain showers in the afternoon. Highs 83 to 90. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening...then mostly cloudy with a slight chance of rain showers after midnight. Lows 62 to 69. .SUNDAY...Mostly sunny with a chance of showers and thunderstorms. Highs 80 to 87. .SUNDAY NIGHT...Partly cloudy. Lows 60 to 68. .MONDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 79 to 86. .MONDAY NIGHT...Mostly cloudy. Lows 59 to 67. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 80 to 87. .TUESDAY NIGHT...Partly cloudy. Lows 59 to 67. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 81 to 88. .WEDNESDAY NIGHT...Partly cloudy. Lows 59 to 67. .THURSDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 79 to 86. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 58 to 65. Highs 78 to 85. $$ IDZ061-221000- Bear Lake Valley- Including St. Charles, Montpelier, and Georgetown 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy. A slight chance of rain showers after midnight. Lows 56 to 64. .SATURDAY...Partly sunny. A slight chance of rain showers in the afternoon. Highs 79 to 87. .SATURDAY NIGHT...Increasing clouds. A slight chance of rain showers. Lows 52 to 61. .SUNDAY...Mostly sunny with a chance of showers and thunderstorms. Highs 78 to 85. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 60. .MONDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 76 to 83. .MONDAY NIGHT...Mostly cloudy. Lows 49 to 59. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 77 to 84. .TUESDAY NIGHT...Partly cloudy. Lows 50 to 60. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 77 to 84. .WEDNESDAY NIGHT...Partly cloudy. Lows 48 to 58. .THURSDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 77 to 84. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 47 to 57. Highs 76 to 83. $$ IDZ071-074-221000- Frank Church Wilderness-Big Lost Highlands/Copper Basin- Including Clayton and Copper Basin 1231 PM MDT Fri Aug 21 2026 .TONIGHT...Mostly cloudy with a slight chance of rain showers. Lows 52 to 62. .SATURDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs 77 to 87. .SATURDAY NIGHT...Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening...then a chance of rain showers after midnight. Lows 49 to 59. .SUNDAY...Sunny. Highs 74 to 84. .SUNDAY NIGHT...Mostly clear. Lows 46 to 56. .MONDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 74 to 84. .MONDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 48 to 58. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 74 to 84. .TUESDAY NIGHT...Mostly cloudy. Lows 48 to 58. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 74 to 84. .WEDNESDAY NIGHT THROUGH FRIDAY...Partly cloudy. Lows 45 to 55. Highs 72 to 82. $$ IDZ055-221000- Eastern Magic Valley- Including Burley, Rupert, Heyburn, and Oakley 1231 PM MDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING... .TONIGHT...Mostly cloudy with a slight chance of rain showers. Lows 64 to 71. South winds around 10 mph. .SATURDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs 89 to 96. Southeast winds around 10 mph... shifting to southwest in the afternoon. Chance of precipitation 50 percent. .SATURDAY NIGHT...Mostly cloudy. A slight chance of rain showers in the evening...then a chance of rain showers after midnight. Lows 59 to 67. South winds around 10 mph. Chance of precipitation 40 percent. .SUNDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 86 to 93. Southwest winds around 10 mph. Chance of precipitation 20 percent. .SUNDAY NIGHT...Partly cloudy. Lows 58 to 66. Southwest winds up to 10 mph. .MONDAY...Partly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 85 to 92. .MONDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows 57 to 64. .TUESDAY THROUGH FRIDAY...Partly cloudy. Highs 84 to 94. Lows 56 to 66. $$ weather information on-line 24-hours a day www.weather.gov/pocatello