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

Edgar County Airport (KPRG)

Lat: 39.7°NLon: 87.67°WElev: 650ft.

Fair

54°F

12°C

Humidity 56%
Wind Speed NE 9 mph
Barometer 30.07 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 13 May 9:55 pm CDT
Extended Forecast for

4 Miles NNW Dennison IL

  • Tonight

    Tonight: Clear, with a low around 40. Light north wind.

    Low: 40 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 68. North wind around 5 mph becoming calm in the afternoon.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 47. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 47 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 73. South wind 8 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. South wind around 9 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 82. Southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63. South wind 3 to 5 mph.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 40. Light north wind.
Thursday
Sunny, with a high near 68. North wind around 5 mph becoming calm in the afternoon.
Thursday Night
Increasing clouds, with a low around 47. Calm wind becoming south southeast around 5 mph after midnight.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 73. South wind 8 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. South wind around 9 mph, with gusts as high as 20 mph.
Saturday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 82. Southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 63. South wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 66.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 63.
Wednesday
A chance of showers. Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Dennison IL
 39.5°N 87.61°W (Elev. 600 ft)
Last Update:
9:36 pm CDT May 13, 2026
Forecast Valid:
10pm CDT May 13, 2026-6pm CDT May 20, 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