670
FPUS65 KTFX 220240
SFPMT

State Forecast For Montana
National Weather Service Great Falls MT
839 PM MDT Thu Aug 21 2025

MTZ001>007-043-221000-
West of the Continental Divide-
National Weather Service Missoula MT
839 PM MDT Thu Aug 21 2025

.TONIGHT...Mostly clear. Lows in the 40s to lower 50s.
.FRIDAY...Mostly sunny. Highs in the 80s.
.FRIDAY NIGHT...Mostly clear. Haze. Lows in the 40s to lower 50s.
.SATURDAY...Mostly clear. Highs in the mid 80s to lower 90s.
.SUNDAY...Partly cloudy. Lows in the mid 40s to lower 50s. Highs
in the mid 80s to lower 90s.
.MONDAY...Partly cloudy. Lows in the upper 40s to mid 50s. Highs
in the mid 80s to lower 90s.
.TUESDAY...Partly cloudy. Lows in the upper 40s to mid 50s. Highs
in the mid 80s to lower 90s.

$$

MTZ301>314-316>318-221000-
Central Montana-
National Weather Service Great Falls MT
839 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Slight chance of rain showers
after midnight. Lows 45 to 55...40 to 50 in the mountains.
.FRIDAY...Partly cloudy. Highs 70 to 75...60 to 70 in the
mountains.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50.
.SATURDAY...Mostly clear. Highs 75 to 80.
.SUNDAY...Mostly clear. Lows 45 to 50. Highs 75 to 80.
.MONDAY...Mostly clear. Lows around 50. Highs 75 to 85.
.TUESDAY...Partly cloudy. Lows 50 to 55. Highs 75 to 85.
$$

MTZ315-319>330-221000-
Southwest Montana-
National Weather Service Great Falls MT
839 PM MDT Thu Aug 21 2025

.REST OF TONIGHT...Mostly clear. Haze. Lows 45 to 50.
.FRIDAY...Sunny. Highs 75 to 80...65 to 75 in the mountains.
.FRIDAY NIGHT...Mostly clear. Lows 45 to 50.
.SATURDAY...Mostly clear. Highs 75 to 85.
.SUNDAY...Partly cloudy. Lows 45 to 50. Highs 70 to 80.
.MONDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows 50 to 55. Highs 70 to 80.
.TUESDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows 45 to 55. Highs 70 to 80.
$$

MTZ016>027-059>062-221000-
Northeast Montana-
National Weather Service Glasgow MT
839 PM MDT Thu Aug 21 2025

.TONIGHT...Mostly clear. Lows in the 50s.
.FRIDAY...Sunny. Highs in the 70s.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s to lower 50s.
.SATURDAY...Clear. Highs in the 70s.
.SUNDAY...Mostly clear. Highs in the lower to mid 70s. Lows in
the mid 40s to lower 50s.
.MONDAY...Mostly clear. Highs in the mid to upper 70s. Lows in
the mid 40s to lower 50s.
.TUESDAY...Mostly clear. Highs near 80. Lows near 50.

$$

MTZ028>042-056>058-063>068-221000-
South Central and Southeast Montana-
National Weather Service Billings MT
839 PM MDT Thu Aug 21 2025

...Heat Advisory in effect from 9 AM this morning to 9 PM MDT
   Wednesday for portions of South Central Montana... and all of
   Southeast Montana...

.TODAY...Sunny. Highs 94 to 104.
.TONIGHT...Mostly clear. Lows from the mid 50s west to the lower
70s east.
.WEDNESDAY...Sunny. Highs 93 to 103.
.WEDNESDAY NIGHT...Partly cloudy. Slight chance of thunderstorms
west...and slight chance of showers east. Lows in the mid 50s to
upper 60s.
.THURSDAY...Sunny. Highs in the lower to mid 80s.
.THURSDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms east. Lows of around 50 to around 60.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s to
the upper 50s. Highs in the upper 70s to mid 80s.

$$