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

Hazardous Weather Conditions

Current conditions at

Robinson Municipal Airport (KRSV)

Lat: 39.01°NLon: 87.65°WElev: 449ft.

Mostly Cloudy

97°F

36°C

Humidity 44%
Wind Speed NW 8 mph
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 4 Sep 12:55 pm CDT
Extended Forecast for

5 Miles W West Union IL

Extreme Heat Warning September 4, 01:13pm until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 01:13pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • This Afternoon

    High: 98 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 75. Light southwest wind.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 97. Heat index values as high as 102. Light northwest wind increasing to 5 to 9 mph in the morning.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 68. North northeast wind 7 to 9 mph, with gusts as high as 15 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 87. Northeast wind 9 to 11 mph, with gusts as high as 16 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. Northeast wind 6 to 10 mph, with gusts as high as 15 mph.

    Low: 61 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 87. East northeast wind 6 to 9 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 98. Heat index values as high as 106. West wind around 8 mph.
Tonight
Mostly clear, with a low around 75. Light southwest wind.
Saturday
A 10 percent chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 97. Heat index values as high as 102. Light northwest wind increasing to 5 to 9 mph in the morning.
Saturday Night
Increasing clouds, with a low around 68. North northeast wind 7 to 9 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 87. Northeast wind 9 to 11 mph, with gusts as high as 16 mph.
Sunday Night
Mostly clear, with a low around 61. Northeast wind 6 to 10 mph, with gusts as high as 15 mph.
Labor Day
Sunny, with a high near 87. East northeast wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
A chance of showers. Mostly clear, with a low around 72.
Thursday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W West Union IL
 39.22°N 87.78°W (Elev. 600 ft)
Last Update:
1:01 pm CDT Sep 4, 2026
Forecast Valid:
1pm CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

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Chance of Precipitation