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

79°F

26°C

Humidity 84%
Wind Speed N 7 mph
Barometer 29.81 in
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Heat Index83°F (28°C)
Last update 28 Jul 6:55 pm CDT
Extended Forecast for

West Union IL

  • Tonight

    Tonight: Partly cloudy, with a low around 62. North wind 3 to 7 mph. Winds could gust as high as 17 mph.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 84. Light north wind becoming north northeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61. North wind 3 to 7 mph.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. North wind 3 to 5 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. Light and variable wind.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the morning.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Southeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.

    Low: 66 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. North wind 3 to 7 mph. Winds could gust as high as 17 mph.
Wednesday
Sunny, with a high near 84. Light north wind becoming north northeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Wednesday Night
Clear, with a low around 61. North wind 3 to 7 mph.
Thursday
Sunny, with a high near 86. North wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 64. Light and variable wind.
Friday
Partly sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the morning.
Friday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Southeast wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 66.
Monday
A chance of showers. Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A chance of showers. Mostly sunny, with a high near 85.
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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:
6:41 pm CDT Jul 28, 2026
Forecast Valid:
7pm CDT Jul 28, 2026-6pm CDT Aug 4, 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