National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

44°F

7°C

Humidity 79%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 17 Mar 11:52 PM PDT
Extended Forecast for

16 Miles NE Happy Camp CA

  • Overnight

    Overnight: Clear, with a low around 57. South wind around 8 mph.

    Low: 57 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. South wind around 9 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 55. South wind 6 to 8 mph.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Southwest wind 6 to 8 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. West wind 5 to 7 mph becoming light and variable.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain before 11am. Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 57. South wind around 8 mph.
Wednesday
Sunny, with a high near 72. South wind around 9 mph.
Wednesday Night
Clear, with a low around 55. South wind 6 to 8 mph.
Thursday
Sunny, with a high near 72. Southwest wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 53. West wind 5 to 7 mph becoming light and variable.
Friday
Mostly sunny, with a high near 71.
Friday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 47.
Saturday
A slight chance of rain before 11am. Partly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 42.
Monday
A slight chance of rain. Snow level 5900 feet rising to 6700 feet in the afternoon. Partly sunny, with a high near 61.
Monday Night
A chance of rain. Mostly cloudy, with a low around 44.
Tuesday
Rain and snow likely. Snow level 5700 feet. Mostly cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NE Happy Camp CA
 41.97°N 123.17°W (Elev. 2999 ft)
Last Update:
10:40 pm PDT Mar 17, 2026
Forecast Valid:
12am PDT Mar 18, 2026-6pm PDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation