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

9 Miles WNW Illinois Valley OR

  • Overnight

    Overnight: A chance of rain before 4am, then a slight chance of rain after 5am.  Snow level 5900 feet. Mostly cloudy, with a steady temperature around 43. South southwest wind around 10 mph.  Chance of precipitation is 30%.

    Low: 43 °F

    Chance Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly between 9am and 5pm.  Snow level 5000 feet. Partly sunny, with a high near 46. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 46 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 11pm, then a chance of rain and snow between 11pm and midnight, then rain after midnight.  Snow level 4500 feet rising to 5000 feet after midnight. Low around 39. Southwest wind 13 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 39 °F

    Chance
    Rain/Snow
    then Rain

  • Wednesday

    Wednesday: Rain before 8am, then rain, possibly mixed with snow between 8am and 11am, then rain after 11am. The rain could be heavy at times.  Snow level 5600 feet lowering to 4500 feet in the afternoon . High near 40. Breezy, with a west southwest wind 21 to 24 mph, with gusts as high as 39 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Breezy.
    Rain/Snow
    then Heavy
    Rain

  • Wednesday Night

    Wednesday Night: Rain and snow showers, becoming all snow after 8pm. Some thunder is also possible.  Low around 34. West southwest wind 17 to 21 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 34 °F

    Rain/Snow
    then Snow
    Showers

  • Thursday

    Thursday: Snow before 2pm, then rain likely, possibly mixed with snow.  High near 41. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 41 °F

    Snow then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 11pm.  Snow level 3800 feet lowering to 3400 feet after midnight . Partly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

Detailed Forecast

Overnight
A chance of rain before 4am, then a slight chance of rain after 5am. Snow level 5900 feet. Mostly cloudy, with a steady temperature around 43. South southwest wind around 10 mph. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of rain, mainly between 9am and 5pm. Snow level 5000 feet. Partly sunny, with a high near 46. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of rain before 11pm, then a chance of rain and snow between 11pm and midnight, then rain after midnight. Snow level 4500 feet rising to 5000 feet after midnight. Low around 39. Southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Rain before 8am, then rain, possibly mixed with snow between 8am and 11am, then rain after 11am. The rain could be heavy at times. Snow level 5600 feet lowering to 4500 feet in the afternoon . High near 40. Breezy, with a west southwest wind 21 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow showers, becoming all snow after 8pm. Some thunder is also possible. Low around 34. West southwest wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow before 2pm, then rain likely, possibly mixed with snow. High near 41. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 30 percent chance of rain before 11pm. Snow level 3800 feet lowering to 3400 feet after midnight . Partly cloudy, with a low around 31.
Friday
Sunny, with a high near 56.
Friday Night
Clear, with a low around 39.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Illinois Valley OR
 42.15°N 123.85°W (Elev. 3356 ft)
12:27 am PDT Mar 31, 2026
1am PDT Mar 31, 2026-6pm PDT Apr 6, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database