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

36°F

2°C

Humidity 74%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 13 Feb 10:15 pm CST
Extended Forecast for

Sidell IL

  • Tonight

    Tonight: Mostly clear, with a low around 30. South wind 5 to 7 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 50. South southwest wind 3 to 5 mph.

    High: 50 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Patchy fog after 2am. Otherwise, cloudy, with a low around 38. Calm wind becoming east around 5 mph after midnight.

    Low: 38 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 57. East northeast wind 3 to 6 mph.

    High: 57 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 58. Calm wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 15 mph.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. South wind around 6 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 30. South wind 5 to 7 mph.
Saturday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 50. South southwest wind 3 to 5 mph.
Saturday Night
A 50 percent chance of rain. Patchy fog after 2am. Otherwise, cloudy, with a low around 38. Calm wind becoming east around 5 mph after midnight.
Sunday
Patchy fog before 7am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 57. East northeast wind 3 to 6 mph.
Sunday Night
Mostly clear, with a low around 35. Calm wind.
Washington's Birthday
Partly sunny, with a high near 58. Calm wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 40. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
Partly sunny, with a high near 66. Breezy.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
A chance of rain. Partly sunny, with a high near 59.
Thursday Night
A chance of rain. Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sidell IL
 39.89°N 87.82°W (Elev. 686 ft)
Last Update:
9:37 pm CST Feb 13, 2026
Forecast Valid:
10pm CST Feb 13, 2026-6pm CST Feb 20, 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