National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

78°F

26°C

Humidity 75%
Wind Speed S 3 mph
Barometer 29.93 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Sep 2:15 am CDT
Extended Forecast for

Washburn IL

Extreme Heat Warning until September 4, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until September 4, 07:00pm

    NOW until 7:00pm Fri

    Extreme Heat Warning

  • Overnight

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95. Heat index values as high as 103. Southwest wind 6 to 8 mph, with gusts as high as 15 mph.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind 3 to 7 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. Heat index values as high as 105. Southeast wind around 7 mph becoming west in the morning.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.

    Low: 73 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of thunderstorms before 7am. Sunny, with a high near 90. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 90 °F

    Chance
    T-storms then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. East northeast wind 6 to 8 mph.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 76. South southwest wind around 7 mph, with gusts as high as 15 mph.
Thursday
Sunny and hot, with a high near 95. Heat index values as high as 103. Southwest wind 6 to 8 mph, with gusts as high as 15 mph.
Thursday Night
Mostly clear, with a low around 76. South wind 3 to 7 mph.
Friday
Sunny, with a high near 94. Heat index values as high as 105. Southeast wind around 7 mph becoming west in the morning.
Friday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.
Saturday
A chance of thunderstorms before 7am. Sunny, with a high near 90. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 69. East northeast wind 6 to 8 mph.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 64.
Labor Day
Sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Washburn IL
 40.91°N 89.28°W (Elev. 699 ft)
Last Update:
1:56 am CDT Sep 3, 2026
Forecast Valid:
2am CDT Sep 3, 2026-6pm CDT Sep 9, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation