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

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

33°F

1°C

Humidity 100%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 16 Apr 01:52 AM PDT
Extended Forecast for

16 Miles SE Agness OR

Frost Advisory April 16, 03:00am until April 16, 09:00am
Freeze Warning April 17, 03:00am until April 17, 09:00am
Click here for hazard details and duration
Frost Advisory
Freeze Warning

  • Overnight

    Overnight: Mostly cloudy, with a low around 35. South southwest wind around 6 mph.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain between 9am and 10am. Snow level 1900 feet rising to 3500 feet in the afternoon. Mostly sunny, with a high near 54. East southeast wind 5 to 10 mph becoming north northeast in the morning. Chance of precipitation is 20%.

    High: 54 °F

    Slight Chance
    Rain then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. East southeast wind 7 to 9 mph.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 66. East wind around 7 mph.

    High: 66 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43. North northwest wind around 6 mph becoming southeast after midnight.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely. Mostly cloudy, with a high near 58.

    High: 58 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 35. South southwest wind around 6 mph.
Thursday
A slight chance of rain between 9am and 10am. Snow level 1900 feet rising to 3500 feet in the afternoon. Mostly sunny, with a high near 54. East southeast wind 5 to 10 mph becoming north northeast in the morning. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 35. East southeast wind 7 to 9 mph.
Friday
Mostly sunny, with a high near 66. East wind around 7 mph.
Friday Night
Partly cloudy, with a low around 43. North northwest wind around 6 mph becoming southeast after midnight.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 49.
Sunday
Rain likely. Mostly cloudy, with a high near 58.
Sunday Night
Rain. Mostly cloudy, with a low around 47.
Monday
Rain likely. Mostly cloudy, with a high near 59.
Monday Night
Rain likely. Mostly cloudy, with a low around 45.
Tuesday
Rain likely. Mostly cloudy, with a high near 57.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 46.
Wednesday
A chance of rain. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
Last Update:
1:47 am PDT Apr 16, 2026
Forecast Valid:
2am PDT Apr 16, 2026-6pm PDT Apr 22, 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