Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

49°F

9°C

Humidity 99%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 28 Feb 09:52 AM PST
Extended Forecast for

11 Miles SSE Agness OR

  • Today

    Today: Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm.  High near 57. South wind around 6 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Showers

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 46. East southeast wind around 6 mph becoming light and variable.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 1pm.  Snow level 6800 feet lowering to 6000 feet in the afternoon . Steady temperature around 50. Southwest wind 3 to 6 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Showers

  • Sunday Night

    Sunday Night: Rain, mainly before 10pm.  Snow level 5900 feet. Low around 46. Light and variable wind.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain then
    Chance Rain

  • Monday

    Monday: A 50 percent chance of rain.  Snow level 5900 feet. Partly sunny, with a high near 56. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 56 °F

    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 10am.  Snow level 5800 feet. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 5400 feet. Cloudy, with a low around 45.

    Low: 45 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Snow level 4400 feet. Cloudy, with a high near 48.

    High: 48 °F

    Rain

Detailed Forecast

Today
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 57. South wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. East southeast wind around 6 mph becoming light and variable. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, with thunderstorms also possible after 1pm. Snow level 6800 feet lowering to 6000 feet in the afternoon . Steady temperature around 50. Southwest wind 3 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain, mainly before 10pm. Snow level 5900 feet. Low around 46. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 50 percent chance of rain. Snow level 5900 feet. Partly sunny, with a high near 56. Calm wind becoming north northwest around 5 mph in the afternoon.
Monday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 46.
Tuesday
Rain likely, mainly after 10am. Snow level 5800 feet. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.
Tuesday Night
Rain. Snow level 5400 feet. Cloudy, with a low around 45.
Wednesday
Rain. Snow level 4400 feet. Cloudy, with a high near 48.
Wednesday Night
Rain likely, mainly before 10pm. Snow level 3800 feet. Mostly cloudy, with a low around 41.
Thursday
A chance of rain and snow. Snow level 3400 feet rising to 4100 feet in the afternoon. Partly sunny, with a high near 51.
Thursday Night
A chance of rain and snow. Snow level 4300 feet. Mostly cloudy, with a low around 40.
Friday
A chance of rain and snow. Snow level 4500 feet rising to 5600 feet in the afternoon. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSE Agness OR
 42.43°N 123.96°W (Elev. 3182 ft)
9:51 am PST Feb 28, 2026
10am PST Feb 28, 2026-6pm PST Mar 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database