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.

Partly Cloudy

79°F

26°C

Humidity 65%
Wind Speed W 7 mph
Barometer 30.11 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 5 Aug 9:55 am CDT
Extended Forecast for

Sidell IL

  • Today

    Today: Sunny, with a high near 86. South southwest wind around 6 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 68. South southwest wind around 5 mph becoming calm after midnight.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Southwest wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 85. West southwest wind 3 to 6 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 86. South southwest wind around 6 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 68. South southwest wind around 5 mph becoming calm after midnight.
Thursday
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Southwest wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 85. West southwest wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 71.
Monday
Mostly sunny, with a high near 88.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
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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:
9:37 am CDT Aug 5, 2026
Forecast Valid:
10am CDT Aug 5, 2026-6pm CDT Aug 11, 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