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

5 Miles NNW Cave Junction OR

  • Today

    Today: Rain and thunderstorms before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm.  Patchy fog before 7am. High near 56. Calm wind becoming southwest around 6 mph in the morning.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: Rain likely, mainly before 8pm.  Cloudy, then gradually becoming partly cloudy, with a low around 42. Light west wind.  Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Monday

    Monday: A 40 percent chance of rain, mainly before 4pm.  Partly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Chance Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 41. Light south southwest wind.

    Low: 41 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain.  Mostly cloudy, with a high near 55. South southwest wind 5 to 7 mph.

    High: 55 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly after 10pm.  Low around 42. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Snow level 4500 feet. High near 50. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 10pm.  Snow level 4000 feet. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain.  Snow level 3400 feet rising to 4300 feet in the afternoon. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

Detailed Forecast

Today
Rain and thunderstorms before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm. Patchy fog before 7am. High near 56. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain likely, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 42. Light west wind. Chance of precipitation is 60%.
Monday
A 40 percent chance of rain, mainly before 4pm. Partly sunny, with a high near 58. Calm wind.
Monday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 41. Light south southwest wind.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 55. South southwest wind 5 to 7 mph.
Tuesday Night
Rain, mainly after 10pm. Low around 42. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. Snow level 4500 feet. High near 50. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly before 10pm. Snow level 4000 feet. Mostly cloudy, with a low around 36.
Thursday
A chance of rain. Snow level 3400 feet rising to 4300 feet in the afternoon. Mostly cloudy, with a high near 54.
Thursday Night
A chance of rain, mainly before 4am. Snow level 4500 feet. Mostly cloudy, with a low around 39.
Friday
A slight chance of rain. Partly sunny, with a high near 57.
Friday Night
A chance of rain. Mostly cloudy, with a low around 39.
Saturday
A chance of rain. Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Cave Junction OR
 42.25°N 123.69°W (Elev. 1499 ft)
4:36 am PST Mar 1, 2026
6am PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database