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.

Overcast

39°F

4°C

Humidity 79%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 2 Mar 5:55 pm CST
Extended Forecast for

Sidell IL

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 34. East wind around 6 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Showers. High near 49. Calm wind becoming east southeast around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 42. Calm wind becoming east northeast around 6 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 42 °F

    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 3pm. High near 59. Southeast wind 5 to 7 mph becoming light and variable in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 51. South wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers

  • Thursday

    Thursday: Showers. High near 66. South southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 50. West southwest wind around 6 mph becoming south southeast after midnight.

    Low: 50 °F

    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 74.

    High: 74 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 34. East wind around 6 mph becoming calm in the evening.
Tuesday
Showers. High near 49. Calm wind becoming east southeast around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Low around 42. Calm wind becoming east northeast around 6 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers, with thunderstorms also possible after 3pm. High near 59. Southeast wind 5 to 7 mph becoming light and variable in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 51. South wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers. High near 66. South southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50. West southwest wind around 6 mph becoming south southeast after midnight.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 74.
Friday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Saturday
Showers, mainly before noon. High near 69. Chance of precipitation is 80%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 45.
Sunday
Mostly cloudy, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 67.
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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:
5:36 pm CST Mar 2, 2026
Forecast Valid:
6pm CST Mar 2, 2026-6pm CDT Mar 9, 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