Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

51°F

11°C

Humidity 99%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 01 Mar 12:52 AM PST
Extended Forecast for

17 Miles SSE Agness OR

  • Overnight

    Overnight: A chance of rain before 3am, then a slight chance of rain after 4am.  Mostly cloudy, with a low around 44. South wind around 5 mph.  Chance of precipitation is 30%.

    Low: 44 °F

    Chance Rain

  • Monday

    Monday: A 40 percent chance of rain, mainly between 10am and 2pm.  Partly sunny, with a high near 52. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 52 °F

    Chance Rain

  • Monday Night

    Monday Night: A chance of rain before 10pm, then a chance of rain after 1am.  Mostly cloudy, with a low around 43. Southwest wind around 6 mph becoming south southeast in the evening.  Chance of precipitation is 30%.

    Low: 43 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely.  Snow level 5400 feet. Mostly cloudy, with a high near 48. South southwest wind 7 to 9 mph.  Chance of precipitation is 70%.

    High: 48 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain, mainly before 4am, then showers and possibly a thunderstorm after 4am.  Snow level 5400 feet. Low around 43. South southwest wind 9 to 11 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 7am, then rain after 7am.  Snow level 4300 feet. High near 45. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain.  Snow level 3900 feet. Low around 39. Chance of precipitation is 90%.

    Low: 39 °F

    Rain then
    Rain Likely

  • Thursday

    Thursday: A chance of rain.  Snow level 3300 feet rising to 4100 feet in the afternoon. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain.  Snow level 4900 feet. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Overnight
A chance of rain before 3am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 44. South wind around 5 mph. Chance of precipitation is 30%.
Monday
A 40 percent chance of rain, mainly between 10am and 2pm. Partly sunny, with a high near 52. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Monday Night
A chance of rain before 10pm, then a chance of rain after 1am. Mostly cloudy, with a low around 43. Southwest wind around 6 mph becoming south southeast in the evening. Chance of precipitation is 30%.
Tuesday
Rain likely. Snow level 5400 feet. Mostly cloudy, with a high near 48. South southwest wind 7 to 9 mph. Chance of precipitation is 70%.
Tuesday Night
Rain, mainly before 4am, then showers and possibly a thunderstorm after 4am. Snow level 5400 feet. Low around 43. South southwest wind 9 to 11 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 7am, then rain after 7am. Snow level 4300 feet. High near 45. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Snow level 3900 feet. Low around 39. Chance of precipitation is 90%.
Thursday
A chance of rain. Snow level 3300 feet rising to 4100 feet in the afternoon. Mostly cloudy, with a high near 48.
Thursday Night
A chance of rain. Snow level 4900 feet. Mostly cloudy, with a low around 41.
Friday
A chance of rain, mainly before 10am. Snow level 5100 feet rising to 6000 feet in the afternoon. Partly sunny, with a high near 55.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 44.
Saturday
A slight chance of rain. Partly sunny, with a high near 61.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Sunday
A chance of rain. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
12:41 am PST Mar 2, 2026
1am PST Mar 2, 2026-6pm PDT Mar 8, 2026
 
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Additional Resources

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