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

39°F

4°C

Humidity 65%
Wind Speed SW 12 mph
Barometer 30.15 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Jan 9:35 pm CST
Extended Forecast for

West Union IL

  • Tonight

    Tonight: Mostly clear, with a low around 32. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 54. West southwest wind 10 to 17 mph, with gusts as high as 29 mph.

    High: 54 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 38. West wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 38 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature falling to around 28 by 5pm. Breezy, with a northwest wind 11 to 20 mph, with gusts as high as 32 mph.

    High: 39 °F⇓

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 16. North northwest wind 13 to 16 mph, with gusts as high as 29 mph.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 28. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 28 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 20. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 20 °F

    Mostly Cloudy

  • Friday

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

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 32. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 54. West southwest wind 10 to 17 mph, with gusts as high as 29 mph.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 38. West wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday
Mostly cloudy, with a temperature falling to around 28 by 5pm. Breezy, with a northwest wind 11 to 20 mph, with gusts as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 16. North northwest wind 13 to 16 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 28. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 20. South southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Friday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 38.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
Mostly cloudy, with a low around 8.
Sunday
Partly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 10.
M.L.King Day
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Union IL
 39.22°N 87.66°W (Elev. 449 ft)
Last Update:
9:36 pm CST Jan 12, 2026
Forecast Valid:
9pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation