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

41°F

5°C

Humidity 66%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 12 Jan 3:55 pm CST
Extended Forecast for

4 Miles NNW Dennison IL

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming clear, with a low around 31. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 31 °F

    Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. Southwest wind 10 to 17 mph, with gusts as high as 29 mph.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature falling to around 27 by 5pm. Breezy, with a northwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 37 °F⇓

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15. North northwest wind 13 to 17 mph, with gusts as high as 29 mph.

    Low: 15 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 27. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 27 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19. South southwest wind 5 to 13 mph, with gusts as high as 21 mph.

    Low: 19 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then becoming clear, with a low around 31. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 53. Southwest wind 10 to 17 mph, with gusts as high as 29 mph.
Tuesday Night
Mostly cloudy, with a low around 37. West wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly cloudy, with a temperature falling to around 27 by 5pm. Breezy, with a northwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 34 mph.
Wednesday Night
Partly cloudy, with a low around 15. North northwest wind 13 to 17 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 27. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 19. South southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Friday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 37.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Mostly cloudy, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 7.
Sunday
Partly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 8.
M.L.King Day
Mostly sunny, with a high near 26.
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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:
3:36 pm CST Jan 12, 2026
Forecast Valid:
4pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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