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

Robinson Municipal Airport (KRSV)

Lat: 39.01°NLon: 87.65°WElev: 449ft.

Overcast with Haze

79°F

26°C

Humidity 74%
Wind Speed N 10 G 18 mph
Barometer 29.78 in
Dewpoint 70°F (21°C)
Visibility 6.00 mi
Heat Index82°F (28°C)
Last update 2 Aug 3:15 pm CDT
Extended Forecast for

West Union IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. North wind around 14 mph, with gusts as high as 24 mph.

    High: 81 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 63. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. North northeast wind 5 to 7 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61. Northeast wind around 6 mph becoming calm after midnight.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. Light east northeast wind.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. North wind around 14 mph, with gusts as high as 24 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 63. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 82. North northeast wind 5 to 7 mph.
Monday Night
Clear, with a low around 61. Northeast wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 83. Light east northeast wind.
Tuesday Night
Mostly clear, with a low around 62. Calm wind.
Wednesday
Sunny, with a high near 84. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Friday Night
A chance of showers. Partly cloudy, with a low around 68.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Union IL
 39.2°N 87.66°W (Elev. 486 ft)
Last Update:
3:36 pm CDT Aug 2, 2026
Forecast Valid:
3pm CDT Aug 2, 2026-6pm CDT Aug 8, 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