Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

49°F

9°C

Humidity 100%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 31 Mar 12:52 AM PDT
Extended Forecast for

12 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
  • Overnight

    Overnight: A chance of rain before 4am, then a chance of rain after 5am.  Snow level 6200 feet. Mostly cloudy, with a low around 41. South southwest wind around 10 mph.  Chance of precipitation is 40%.

    Low: 41 °F

    Chance Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain, mainly after 11am.  Snow level 5900 feet. Partly sunny, with a steady temperature around 43. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 43 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 11pm, then rain, possibly mixed with snow.  Snow level 5200 feet. Low around 37. South southwest wind 11 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 37 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow.  Snow level 5300 feet lowering to 4800 feet in the afternoon . High near 40. Breezy, with a south wind 17 to 25 mph, with gusts as high as 40 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Snow showers before 2am, then snow after 2am. Some thunder is also possible.  Low around 34. Breezy, with a west southwest wind 18 to 24 mph, with gusts as high as 39 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 34 °F

    Snow Showers
    and Breezy

  • Thursday

    Thursday: Snow.  High near 38. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 38 °F

    Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm.  Partly cloudy, with a low around 29. Little or no snow accumulation expected.

    Low: 29 °F

    Chance Snow
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of rain before 4am, then a chance of rain after 5am. Snow level 6200 feet. Mostly cloudy, with a low around 41. South southwest wind around 10 mph. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of rain, mainly after 11am. Snow level 5900 feet. Partly sunny, with a steady temperature around 43. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of rain before 11pm, then rain, possibly mixed with snow. Snow level 5200 feet. Low around 37. South southwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Rain and snow. Snow level 5300 feet lowering to 4800 feet in the afternoon . High near 40. Breezy, with a south wind 17 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers before 2am, then snow after 2am. Some thunder is also possible. Low around 34. Breezy, with a west southwest wind 18 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow. High near 38. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 29. Little or no snow accumulation expected.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 62.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Cave Junction OR
 42.09°N 123.44°W (Elev. 4610 ft)
12:27 am PDT Mar 31, 2026
1am PDT Mar 31, 2026-6pm PDT Apr 6, 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