National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Robinson Municipal Airport (KRSV)

Lat: 39.01°NLon: 87.65°WElev: 449ft.

Overcast

70°F

21°C

Humidity 100%
Wind Speed E 5 mph
Barometer 29.94 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 26 May 10:15 pm CDT
Extended Forecast for

Flat Rock IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 64. East wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 80. East wind around 6 mph becoming west northwest in the morning. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 8pm. Increasing clouds, with a low around 62. North northeast wind 3 to 5 mph.

    Low: 62 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 84. Northeast wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60. Northeast wind around 9 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79. East wind around 8 mph.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 60. East northeast wind around 6 mph.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 64. East wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 80. East wind around 6 mph becoming west northwest in the morning. Chance of precipitation is 50%.
Wednesday Night
A 20 percent chance of showers before 8pm. Increasing clouds, with a low around 62. North northeast wind 3 to 5 mph.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 84. Northeast wind 6 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Partly cloudy, with a low around 60. Northeast wind around 9 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 79. East wind around 8 mph.
Friday Night
Mostly cloudy, with a low around 60. East northeast wind around 6 mph.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Flat Rock IL
 38.91°N 87.68°W (Elev. 502 ft)
Last Update:
7:36 pm CDT May 26, 2026
Forecast Valid:
10pm CDT May 26, 2026-6pm CDT Jun 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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