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

68°F

20°C

Humidity 79%
Wind Speed W 5 mph
Barometer 30.01 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Jun 8:55 pm CDT
Extended Forecast for

Sidell IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. Calm wind becoming west southwest around 5 mph after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 81. West northwest wind 5 to 8 mph, with gusts as high as 15 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. West northwest wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers between 7am and 1pm, then showers and thunderstorms after 1pm. High near 78. East southeast wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 78 °F

    Chance
    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm after 1am. Low around 63. South southeast wind around 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 63 °F

    T-storms

  • Monday

    Monday: Partly sunny, with a high near 75. North wind around 14 mph, with gusts as high as 21 mph.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. North northeast wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 61. Calm wind becoming west southwest around 5 mph after midnight.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 81. West northwest wind 5 to 8 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 60. West northwest wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers between 7am and 1pm, then showers and thunderstorms after 1pm. High near 78. East southeast wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm after 1am. Low around 63. South southeast wind around 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Monday
Partly sunny, with a high near 75. North wind around 14 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 54. North northeast wind 5 to 13 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sidell IL
 39.91°N 87.82°W (Elev. 659 ft)
Last Update:
7:51 pm CDT Jun 19, 2026
Forecast Valid:
9pm CDT Jun 19, 2026-6pm CDT Jun 26, 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