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

64°F

18°C

Humidity 94%
Wind Speed S 14 mph
Barometer 29.90 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 10 Mar 2:15 am CDT
Extended Forecast for

West Union IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. South southwest wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 62 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 76. South southwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 76 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a low around 64. South southwest wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Temperature falling to around 51 by 5pm. Breezy, with a southwest wind 18 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 68 °F⇓

    Breezy.
    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 33. North northwest wind 9 to 18 mph, with gusts as high as 29 mph.

    Low: 33 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50. North northwest wind 6 to 8 mph becoming west southwest in the afternoon.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. Breezy, with a south wind 7 to 12 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph.

    Low: 41 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 59. Breezy.

    High: 59 °F

    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. South southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Tuesday
Mostly cloudy, with a high near 76. South southwest wind 10 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a low around 64. South southwest wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. Temperature falling to around 51 by 5pm. Breezy, with a southwest wind 18 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
A 30 percent chance of showers before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 33. North northwest wind 9 to 18 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 50. North northwest wind 6 to 8 mph becoming west southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 41. Breezy, with a south wind 7 to 12 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph.
Friday
Mostly cloudy, with a high near 59. Breezy.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
Rain. Cloudy, with a high near 61. Breezy.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 23.
Monday
Partly sunny, with a high near 34.
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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:
1:26 am CDT Mar 10, 2026
Forecast Valid:
2am CDT Mar 10, 2026-6pm CDT Mar 16, 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