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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

76°F

24°C

Humidity 48%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Heat Index78°F (26°C)
Last update 20 Jun 12:52 PM PDT
Extended Forecast for

4 Miles SSE Agness OR

Heat Advisory June 22, 11:00am until June 23, 11:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 78. West northwest wind 5 to 7 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. West northwest wind 3 to 7 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Light northwest wind becoming north 5 to 9 mph in the morning.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. North wind 5 to 9 mph becoming east northeast after midnight.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91. East northeast wind 3 to 6 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 78. West northwest wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 53. West northwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 85. Light northwest wind becoming north 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 58. North wind 5 to 9 mph becoming east northeast after midnight.
Monday
Sunny, with a high near 91. East northeast wind 3 to 6 mph.
Monday Night
Clear, with a low around 63.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Clear, with a low around 61.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 57.
Friday
A slight chance of rain. Mostly sunny, with a high near 75.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Agness OR
 42.5°N 124.04°W (Elev. 407 ft)
Last Update:
12:36 pm PDT Jun 20, 2026
Forecast Valid:
1pm PDT Jun 20, 2026-6pm PDT Jun 26, 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