


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
943 FNUS56 KEKA 162012 FWFEKA FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA NATIONAL WEATHER SERVICE Eureka CA 112 PM PDT Thu Oct 16 2025 .DISCUSSION...Conditions will only very slowly warm and dry through the end of the week with daytime RH near 30 percent and highs near or over 80 degrees for interior valleys by Friday and Saturday. Breezy offshore winds are possible in the higher terrain Thursday and Friday nights. A weak front will bring a slight chance for a wetting rainfall Sunday morning for mainly Del Norte County. CAZ201-171315- North Coast- 112 PM PDT Thu Oct 16 2025 .TONIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...45-50 Ridges/upr slopes....46-51 * Max Humidity....... Valleys/lwr slopes...77-92 percent Ridges/upr slopes....62-77 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 10 mph. Ridges/upr slopes....North winds 6 to 13 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...66-74 Ridges/upr slopes....62-70 * Min Humidity....... Valleys/lwr slopes...66-76 percent Ridges/upr slopes....57-67 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 12 mph. Ridges/upr slopes....Northwest winds 9 to 16 mph. * Mixing Height..........1800 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY NIGHT... * Sky/Weather............Partly cloudy. Patchy dense fog until early morning. * Min Temperature....... Valleys/lwr slopes...46-51 Ridges/upr slopes....47-52 * Max Humidity....... Valleys/lwr slopes...79-94 percent Ridges/upr slopes....66-81 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 6 to 13 mph. Ridges/upr slopes....North winds 6 to 13 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .SATURDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...66-74 Ridges/upr slopes....64-70 * Min Humidity....... Valleys/lwr slopes...69-79 percent Ridges/upr slopes....59-69 percent * 20-Foot Winds... Valleys/lwr slopes...East winds 5 mph...shifting to the west 5 to 6 mph in the afternoon. Ridges/upr slopes....East winds 5 to 7 mph...shifting to the southwest 5 mph in the afternoon. * Mixing Height..........2300 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ202-171315- Coastal Mendocino- 112 PM PDT Thu Oct 16 2025 .TONIGHT... * Sky/Weather............Mostly clear. Patchy fog late in the evening. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...46-51 Ridges/upr slopes....43-51 * Max Humidity....... Valleys/lwr slopes...81-96 percent Ridges/upr slopes....72-87 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 7 mph...shifting to the northeast 5 to 6 mph after midnight. Ridges/upr slopes....North winds 5 to 9 mph. * Mixing Height..........100 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...65-73 Ridges/upr slopes....66-73 * Min Humidity....... Valleys/lwr slopes...61-71 percent Ridges/upr slopes....49-59 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 mph...shifting to the northwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Northeast winds 5 to 6 mph...shifting to the northwest 5 to 9 mph in the afternoon. * Mixing Height..........1300 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...46-53 Ridges/upr slopes....44-52 * Max Humidity....... Valleys/lwr slopes...80-95 percent Ridges/upr slopes....72-87 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 9 mph...shifting to the east 5 to 6 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .SATURDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Max Temperature....... Valleys/lwr slopes...66-74 Ridges/upr slopes....67-74 * Min Humidity....... Valleys/lwr slopes...59-74 percent Ridges/upr slopes....53-63 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 mph...shifting to the southwest 5 to 6 mph in the afternoon. * Mixing Height..........1700 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ203-204-171315- Upper Smith-Lower Middle Klamath- 112 PM PDT Thu Oct 16 2025 .TONIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...45-49 Ridges/upr slopes....47-51 * Max Humidity....... Valleys/lwr slopes...59-74 percent Ridges/upr slopes....51-61 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 10 mph. Ridges/upr slopes....Northeast winds 5 to 10 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...72-80 Ridges/upr slopes....60-68 * Min Humidity....... Valleys/lwr slopes...35-45 percent Ridges/upr slopes....38-45 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 10 mph. Ridges/upr slopes....North winds 5 to 10 mph. * Mixing Height..........3200 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...46-49 Ridges/upr slopes....47-52 * Max Humidity....... Valleys/lwr slopes...63-78 percent Ridges/upr slopes....52-62 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 12 mph. Ridges/upr slopes....Northeast winds 5 to 12 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .SATURDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...75-83 Ridges/upr slopes....62-70 * Min Humidity....... Valleys/lwr slopes...33-41 percent Ridges/upr slopes....33-41 percent * 20-Foot Winds... Valleys/lwr slopes...Northeast winds 5 to 7 mph...shifting to the southwest 5 mph in the afternoon. Ridges/upr slopes....East winds 5 to 7 mph...shifting to the southwest 5 mph in the afternoon. * Mixing Height..........3400 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ211-212-171315- Hoopa-Van Duzen/Mad River- 112 PM PDT Thu Oct 16 2025 .TONIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...43-49 Ridges/upr slopes....43-51 * Max Humidity....... Valleys/lwr slopes...66-81 percent Ridges/upr slopes....55-65 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 9 mph. Ridges/upr slopes....North winds 5 to 11 mph...shifting to the northeast after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...73-81 Ridges/upr slopes....64-72 * Min Humidity....... Valleys/lwr slopes...40-50 percent Ridges/upr slopes....36-46 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 10 mph. Ridges/upr slopes....Northwest winds 5 to 10 mph. * Mixing Height..........2700 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...46-52 Ridges/upr slopes....43-51 * Max Humidity....... Valleys/lwr slopes...71-86 percent Ridges/upr slopes....59-74 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph in the evening...becoming downslope/downvalley 2 to 5 mph. Ridges/upr slopes....Northeast winds 5 to 8 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .SATURDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...75-83 Ridges/upr slopes....65-73 * Min Humidity....... Valleys/lwr slopes...39-49 percent Ridges/upr slopes....39-49 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 mph in the afternoon. Ridges/upr slopes....East winds 5 to 6 mph...shifting to the southwest in the afternoon. * Mixing Height..........3700 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ283-171315- Trinity- 112 PM PDT Thu Oct 16 2025 .TONIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...41-47 Ridges/upr slopes....41-49 * Max Humidity....... Valleys/lwr slopes...58-73 percent Ridges/upr slopes....46-56 percent * 20-Foot Winds... Valleys/lwr slopes...Downslope/downvalley 1 to 3 mph. Ridges/upr slopes....North winds 5 to 11 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...73-79 Ridges/upr slopes....61-69 * Min Humidity....... Valleys/lwr slopes...28-33 percent Ridges/upr slopes....32-42 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. Ridges/upr slopes....North winds 5 to 9 mph. * Mixing Height..........3500 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...42-47 Ridges/upr slopes....41-49 * Max Humidity....... Valleys/lwr slopes...64-79 percent Ridges/upr slopes....52-62 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 7 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .SATURDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...74-80 Ridges/upr slopes....62-70 * Min Humidity....... Valleys/lwr slopes...30-36 percent Ridges/upr slopes....32-42 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph. Ridges/upr slopes....East winds 5 mph...shifting to the south in the afternoon. * Mixing Height..........4500 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ276-171315- Interior Mendocino- 112 PM PDT Thu Oct 16 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...42-50 Ridges/upr slopes....45-53 * Max Humidity....... Valleys/lwr slopes...65-80 percent Ridges/upr slopes....63-78 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 5 to 10 mph. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...72-80 Ridges/upr slopes....68-75 * Min Humidity....... Valleys/lwr slopes...32-42 percent Ridges/upr slopes....36-46 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph. Ridges/upr slopes....Northwest winds 5 to 9 mph. * Mixing Height..........3100 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...46-54 Ridges/upr slopes....47-55 * Max Humidity....... Valleys/lwr slopes...67-82 percent Ridges/upr slopes....61-76 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 7 mph...shifting to the northeast 5 mph after midnight. Ridges/upr slopes....North winds 5 to 9 mph...shifting to the east 5 to 6 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .SATURDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Max Temperature....... Valleys/lwr slopes...73-81 Ridges/upr slopes....68-76 * Min Humidity....... Valleys/lwr slopes...37-47 percent Ridges/upr slopes....41-51 percent * 20-Foot Winds... Valleys/lwr slopes...East winds 5 mph...shifting to the south in the afternoon. Ridges/upr slopes....East winds 5 to 6 mph...shifting to the southwest in the afternoon. * Mixing Height..........3900 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ277-171315- W Mendocino NF/E Mendocino Unit- 112 PM PDT Thu Oct 16 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...41-49 Ridges/upr slopes....45-53 * Max Humidity....... Valleys/lwr slopes...54-69 percent Ridges/upr slopes....41-51 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 8 mph. Ridges/upr slopes....North winds 7 to 14 mph...shifting to the northeast after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...74-82 Ridges/upr slopes....64-72 * Min Humidity....... Valleys/lwr slopes...26-32 percent Ridges/upr slopes....26-34 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph. Ridges/upr slopes....Northwest winds 5 to 9 mph. * Mixing Height..........3800 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...43-51 Ridges/upr slopes....47-55 * Max Humidity....... Valleys/lwr slopes...63-78 percent Ridges/upr slopes....48-58 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 9 mph...shifting to the northeast 5 mph after midnight. Ridges/upr slopes....North winds 5 to 6 mph...shifting to the east after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .SATURDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Max Temperature....... Valleys/lwr slopes...75-83 Ridges/upr slopes....64-72 * Min Humidity....... Valleys/lwr slopes...33-40 percent Ridges/upr slopes....34-44 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph...becoming southwest 5 mph in the afternoon. Ridges/upr slopes....East winds 5 mph...shifting to the southwest in the afternoon. * Mixing Height..........4300 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ264-171315- Lake County Portion of Lake/Napa/Sonoma RU- 112 PM PDT Thu Oct 16 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...around 46 Ridges/upr slopes....52-56 * Max Humidity....... Valleys/lwr slopes...60 percent Ridges/upr slopes....43-53 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph. Ridges/upr slopes....Northwest winds 10 to 17 mph...shifting to the north after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY... * Sky/Weather............Sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...around 75 Ridges/upr slopes....66-72 * Min Humidity....... Valleys/lwr slopes...25 percent Ridges/upr slopes....31-36 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph. Ridges/upr slopes....Northwest winds 5 to 10 mph. * Mixing Height..........3400 ft AGL. * Chc of Wetting Rain....0 percent. .FRIDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature....... Valleys/lwr slopes...around 49 Ridges/upr slopes....54-57 * Max Humidity....... Valleys/lwr slopes...69 percent Ridges/upr slopes....48-57 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to the southeast 5 to 9 mph after midnight. * Mixing Height..........0 ft AGL. * Chc of Wetting Rain....0 percent. .SATURDAY... * Sky/Weather............Sunny. * Max Temperature....... Valleys/lwr slopes...around 75 Ridges/upr slopes....68-73 * Min Humidity....... Valleys/lwr slopes...31 percent Ridges/upr slopes....37-44 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph. Ridges/upr slopes....East winds 5 to 8 mph...shifting to the southeast 5 to 6 mph in the afternoon. * Mixing Height..........3400 ft AGL. * Chc of Wetting Rain....0 percent. $$ .EXTENDED FORECAST FOR DAYS 3 THROUGH 5... ...Northwest California Coast... .SUNDAY...Patchy fog. Partly cloudy with chance of showers. Lows 48 to 53. Highs 59 to 67. North winds 5 mph. .MONDAY...Partly cloudy. Lows 44 to 49. Highs 62 to 68. North winds 5 mph. .TUESDAY...Partly cloudy. Lows 46 to 52. Highs 62 to 68. North winds 5 mph. ...Northwest California Interior... .SUNDAY...Mostly clear. Lows 47 to 55. Highs 65 to 76. Northwest winds 5 mph. .MONDAY...Mostly clear. Lows 42 to 50. Highs 69 to 79. North winds 5 mph. .TUESDAY...Mostly clear. Lows 44 to 52. Highs 70 to 79. North winds 5 mph. .6 to 10 DAY OUTLOOK...Wednesday October 22 THROUGH Sunday October 26, 2025... FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION. $$ visit us at www.weather.gov/eureka