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

41°F

5°C

Humidity 100%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 41°F (5°C)
Visibility 9.00 mi
Last update 11 Nov 1:35 am CST
Extended Forecast for

Flat Rock IL

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 39. Light south wind.

    Low: 39 °F

    Patchy Fog

  • Veterans Day

    Veterans Day: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 69. Light and variable wind becoming west southwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph.

    High: 69 °F

    Patchy Fog
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. North northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 51. North northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 51 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33. North northwest wind 9 to 15 mph, with gusts as high as 23 mph.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 45. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 45 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. Northwest wind 3 to 7 mph.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 39. Light south wind.
Veterans Day
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 69. Light and variable wind becoming west southwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph.
Wednesday Night
Mostly cloudy, with a low around 42. North northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Thursday
Mostly cloudy, with a high near 51. North northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Thursday Night
Partly cloudy, with a low around 33. North northwest wind 9 to 15 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 45. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 26. Northwest wind 3 to 7 mph.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 27.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Sunny, with a high near 54.
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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:
1:26 am CST Nov 11, 2026
Forecast Valid:
1am CST Nov 11, 2026-6pm CST Nov 17, 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