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

39°F

4°C

Humidity 87%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 36°F (2°C)
Visibility 7.00 mi
Last update 7 Jan 7:55 pm CST
Extended Forecast for

Sidell IL

  • Tonight

    Tonight: Increasing clouds, with a low around 38. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of rain before noon, then showers likely, mainly between noon and 2pm. Cloudy, with a high near 62. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Slight Chance
    Rain then
    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 53. Breezy, with a south southwest wind 16 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Rain and
    Breezy

  • Friday

    Friday: Partly sunny, with a temperature falling to around 50 by 5pm. Southwest wind 7 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 60 °F⇓

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 39. Northeast wind 5 to 7 mph.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 40 percent chance of rain. Mostly cloudy, with a high near 44. North northwest wind 7 to 12 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 44 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22. West wind 14 to 18 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. South wind 8 to 10 mph, with gusts as high as 21 mph.
Thursday
A slight chance of rain before noon, then showers likely, mainly between noon and 2pm. Cloudy, with a high near 62. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain and possibly a thunderstorm. Low around 53. Breezy, with a south southwest wind 16 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Partly sunny, with a temperature falling to around 50 by 5pm. Southwest wind 7 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 39. Northeast wind 5 to 7 mph.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 44. North northwest wind 7 to 12 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 22. West wind 14 to 18 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 19.
Monday
Mostly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
A chance of rain. Mostly cloudy, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sidell IL
 39.89°N 87.82°W (Elev. 686 ft)
Last Update:
7:06 pm CST Jan 7, 2026
Forecast Valid:
8pm CST Jan 7, 2026-6pm CST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation