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.

Fog/Mist

75°F

24°C

Humidity 100%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 75°F (24°C)
Visibility 3.00 mi
Last update 15 Aug 11:55 pm CDT
Extended Forecast for

West Union IL

  • Overnight

    Overnight: A 10 percent chance of showers after 5am. Partly cloudy, with a low around 74. South southwest wind 3 to 7 mph.

    Low: 74 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely before 10am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Heat index values as high as 102. West wind 7 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 60%.

    High: 90 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 71. Northwest wind 3 to 6 mph.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 84. North northwest wind 5 to 8 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. North wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

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

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. Calm wind becoming south around 5 mph after midnight.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers before 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 10 percent chance of showers after 5am. Partly cloudy, with a low around 74. South southwest wind 3 to 7 mph.
Sunday
Showers and thunderstorms likely before 10am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Heat index values as high as 102. West wind 7 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 71. Northwest wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 84. North northwest wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around 64. North wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 84. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 67. Calm wind becoming south around 5 mph after midnight.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Union IL
 39.22°N 87.66°W (Elev. 449 ft)
Last Update:
11:41 pm CDT Aug 15, 2026
Forecast Valid:
12am CDT Aug 16, 2026-6pm CDT Aug 22, 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