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.
Basemap Options
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ABOUT THIS FORECAST

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