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.

Fair

25°F

-4°C

Humidity 86%
Wind Speed S 13 mph
Barometer 30.37 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 12 Jan 5:15 am CST
Extended Forecast for

West Union IL

  • Today

    Today: Sunny, with a high near 47. South southwest wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 31. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 54. Southwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 54 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 38. Southwest wind 8 to 10 mph becoming west northwest after midnight. Winds could gust as high as 18 mph.

    Low: 38 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain showers after noon, mixing with snow after 3pm. Mostly cloudy, with a temperature rising to near 40 by 8am, then falling to around 32 during the remainder of the day. Northwest wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    High: 40 °F⇓

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 17. North northwest wind 16 to 18 mph, with gusts as high as 31 mph.

    Low: 17 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28. North northwest wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of snow showers after noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

Today
Sunny, with a high near 47. South southwest wind 7 to 14 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 31. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday
Increasing clouds, with a high near 54. Southwest wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 38. Southwest wind 8 to 10 mph becoming west northwest after midnight. Winds could gust as high as 18 mph.
Wednesday
A chance of rain showers after noon, mixing with snow after 3pm. Mostly cloudy, with a temperature rising to near 40 by 8am, then falling to around 32 during the remainder of the day. Northwest wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 17. North northwest wind 16 to 18 mph, with gusts as high as 31 mph.
Thursday
Mostly sunny, with a high near 28. North northwest wind 7 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
A 30 percent chance of snow showers after noon. Mostly cloudy, with a high near 38.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 28.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Union IL
 39.22°N 87.69°W (Elev. 531 ft)
Last Update:
3:24 am CST Jan 12, 2026
Forecast Valid:
5am CST Jan 12, 2026-6pm CST Jan 18, 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