Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

53°F

12°C

Humidity 88%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 30 Mar 01:52 PM PDT
Extended Forecast for

15 Miles ESE Cave Junction OR

Winter Storm Watch April 1, 05:00am until April 2, 05:00pm
Click here for hazard details and duration
Winter Storm Watch
  • This Afternoon

    This Afternoon: A 30 percent chance of rain.  Mostly cloudy, with a high near 55. South southwest wind 7 to 9 mph.

    High: 55 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 2am, then a slight chance of rain after 5am.  Snow level 7200 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 42. South southwest wind 5 to 9 mph.  Chance of precipitation is 40%.

    Low: 42 °F

    Chance Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain after 7am.  Snow level 5800 feet. Partly sunny, with a high near 50. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 50 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 6000 feet lowering to 5100 feet after midnight . Low around 38. South southwest wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: Rain before 5pm, then showers and possibly a thunderstorm after 5pm.  Snow level 5100 feet. High near 41. South southwest wind 16 to 21 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 41 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain before 8pm, then snow, possibly mixed with rain between 8pm and 11pm, then snow after 11pm. Some thunder is also possible.  Low around 33. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 33 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow before 5pm, then snow likely, possibly mixed with rain.  High near 42. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 42 °F

    Snow then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm.  Partly cloudy, with a low around 29.

    Low: 29 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of rain. Mostly cloudy, with a high near 55. South southwest wind 7 to 9 mph.
Tonight
A chance of rain before 2am, then a slight chance of rain after 5am. Snow level 7200 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 42. South southwest wind 5 to 9 mph. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of rain after 7am. Snow level 5800 feet. Partly sunny, with a high near 50. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Rain. Snow level 6000 feet lowering to 5100 feet after midnight . Low around 38. South southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain before 5pm, then showers and possibly a thunderstorm after 5pm. Snow level 5100 feet. High near 41. South southwest wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Rain before 8pm, then snow, possibly mixed with rain between 8pm and 11pm, then snow after 11pm. Some thunder is also possible. Low around 33. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow before 5pm, then snow likely, possibly mixed with rain. High near 42. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm. Partly cloudy, with a low around 29.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 67.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Cave Junction OR
 42.12°N 123.36°W (Elev. 3658 ft)
12:46 pm PDT Mar 30, 2026
2pm PDT Mar 30, 2026-6pm PDT Apr 5, 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