
Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.
Gusty winds and low relative humidity will bring critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >
Hazardous Weather Conditions
Current conditions at
ILLINOIS VALLEY AIRPORT (SBFO3)
Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.NA
28°F
-2°C
| Humidity | 98% |
| Wind Speed | S 1 MPH |
| Barometer | NA |
| Dewpoint | 28°F (-2°C) |
| Visibility | NA |
| Last update | 19 Feb 08:52 PM PST |
Extended Forecast for
8 Miles WNW Illinois Valley OR
Tonight

Low: 23 °F
Partly Cloudy
Friday
High: 36 °F
Partly Sunny
then Chance
Snow ShowersFriday Night

Low: 31 °F
Snow Showers
LikelySaturday

High: 42 °F
Rain/Snow
LikelySaturday Night

Low: 36 °F
Rain/Snow
Sunday

High: 43 °F
Heavy Rain
Sunday Night

Low: 41 °F
Showers
Monday

High: 44 °F
Heavy Rain
Monday Night
Low: 40 °F
Heavy Rain
then
Rain/Snow
Detailed Forecast
Tonight
Partly cloudy, with a steady temperature around 23. North northwest wind around 6 mph becoming light and variable after midnight.
Friday
A 40 percent chance of snow showers, mainly after 2pm. Partly sunny, with a high near 36. Calm wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph. New snow accumulation of less than a half inch possible.
Friday Night
Snow showers likely. Mostly cloudy, with a low around 31. South wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday
Snow showers likely before 10am, then a chance of rain and snow showers between 10am and 1pm, then rain showers likely after 1pm. Snow level rising to 4400 feet in the afternoon. Mostly cloudy, with a high near 42. South southeast wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Rain showers likely before 10pm, then rain, possibly mixed with snow showers between 10pm and 1am, then rain showers after 1am. The rain could be heavy at times. Snow level 4800 feet. Low around 36. Southeast wind 18 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Showers. The rain could be heavy at times. Snow level 5100 feet. High near 43. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Sunday Night
Showers. Snow level 6100 feet. Low around 41. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Monday
Showers. The rain could be heavy at times. Cloudy, with a high near 44.
Monday Night
Rain showers before 1am, then rain, possibly mixed with snow showers. The rain could be heavy at times. Snow level 6000 feet. Cloudy, with a low around 40.
Tuesday
Rain, possibly mixed with snow showers, becoming all rain after 1pm. Snow level 4900 feet. Mostly cloudy, with a high near 43.
Tuesday Night
Rain and snow showers likely. Snow level 4000 feet. Mostly cloudy, with a low around 34.
Wednesday
Rain and snow showers likely. Snow level 3500 feet rising to 4400 feet in the afternoon. Mostly cloudy, with a high near 46.
Wednesday Night
Rain and snow showers likely. Snow level 4200 feet. Mostly cloudy, with a low around 36.
Thursday
Rain and snow showers likely. Snow level 4400 feet. Mostly cloudy, with a high near 46.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
8 Miles WNW Illinois Valley OR
42.14°N 123.81°W (Elev. 3209 ft)
42.14°N 123.81°W (Elev. 3209 ft)
9:41 pm PST Feb 19, 2026
9pm PST Feb 19, 2026-6pm PST Feb 26, 2026



