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 8 mph
Barometer 30.37 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 12 Jan 6:15 am CST
Extended Forecast for

Flat Rock IL

  • Today

    Today: Sunny, with a high near 47. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 31. South southwest wind 7 to 10 mph, with gusts as high as 16 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 56. Southwest wind 11 to 17 mph, with gusts as high as 25 mph.

    High: 56 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 39. Southwest wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 17 mph.

    Low: 39 °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 41 by 9am, then falling to around 33 during the remainder of the day. Northwest wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 41 °F⇓

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18. North northwest wind 15 to 17 mph, with gusts as high as 29 mph.

    Low: 18 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29. North northwest wind 7 to 15 mph, with gusts as high as 22 mph.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 20 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 47. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 31. South southwest wind 7 to 10 mph, with gusts as high as 16 mph.
Tuesday
Increasing clouds, with a high near 56. Southwest wind 11 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 39. Southwest wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 17 mph.
Wednesday
A chance of rain showers after noon, mixing with snow after 3pm. Mostly cloudy, with a temperature rising to near 41 by 9am, then falling to around 33 during the remainder of the day. Northwest wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 18. North northwest wind 15 to 17 mph, with gusts as high as 29 mph.
Thursday
Mostly sunny, with a high near 29. North northwest wind 7 to 15 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Mostly cloudy, with a high near 39.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 29.
Saturday Night
Mostly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Flat Rock IL
 38.89°N 87.69°W (Elev. 554 ft)
Last Update:
5:52 am CST Jan 12, 2026
Forecast Valid:
6am 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