National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Edgar County Airport (KPRG)

Lat: 39.7°NLon: 87.67°WElev: 650ft.

Mostly Cloudy

80°F

27°C

Humidity 68%
Wind Speed N 6 mph
Barometer 30.04 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 20 Aug 1:35 pm CDT
Extended Forecast for

Sidell IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. North northeast wind around 8 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 59. North northeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms between 1am and 3am. Mostly cloudy, with a low around 64. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 64 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 80. West southwest wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Northwest wind 3 to 7 mph.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. North northwest wind 3 to 8 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. North northeast wind around 8 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 59. North northeast wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms between 1am and 3am. Mostly cloudy, with a low around 64. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 80. West southwest wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 59. Northwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 77. North northwest wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 83.
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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:
1:36 pm CDT Aug 20, 2026
Forecast Valid:
1pm CDT Aug 20, 2026-6pm CDT Aug 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