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

61°F

16°C

Humidity 38%
Wind Speed N 6 mph
Barometer 30.15 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 14 May 10:55 am CDT
Extended Forecast for

3 Miles W Dennison IL

  • Today

    Today: Sunny, with a high near 69. North northeast wind around 5 mph becoming calm in the afternoon.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 48. South southeast wind 3 to 5 mph.

    Low: 48 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 74. South wind 7 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 61. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 82. Southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 3 to 7 mph. Winds could gust as high as 17 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 83. South wind 6 to 15 mph, with gusts as high as 22 mph.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy.

    High: 87 °F

    Breezy. Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 69. North northeast wind around 5 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 48. South southeast wind 3 to 5 mph.
Friday
Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 74. South wind 7 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 61. South wind 7 to 9 mph, with gusts as high as 18 mph.
Saturday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 82. Southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 3 to 7 mph. Winds could gust as high as 17 mph. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 83. South wind 6 to 15 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 65.
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. Chance of precipitation is 40%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63.
Wednesday
A chance of showers. Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Dennison IL
 39.46°N 87.65°W (Elev. 587 ft)
Last Update:
9:46 am CDT May 14, 2026
Forecast Valid:
11am CDT May 14, 2026-6pm CDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation