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.

Fair

64°F

18°C

Humidity 98%
Wind Speed SE 7 mph
Barometer 29.96 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 17 May 12:15 am CDT
Extended Forecast for

Sidell IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 64. South wind around 7 mph, with gusts as high as 16 mph.

    Low: 64 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 85 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. South wind 13 to 16 mph, with gusts as high as 26 mph.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 83. Breezy, with a south wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Breezy.
    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 68. South wind around 17 mph, with gusts as high as 26 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

    T-storms
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 86. Breezy, with a south southwest wind 18 to 25 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Breezy.
    Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. South southwest wind 9 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 64. South wind around 7 mph, with gusts as high as 16 mph.
Sunday
Mostly sunny, with a high near 85. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
Mostly clear, with a low around 66. South wind 13 to 16 mph, with gusts as high as 26 mph.
Monday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 83. Breezy, with a south wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 68. South wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 86. Breezy, with a south southwest wind 18 to 25 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. South southwest wind 9 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Mostly cloudy, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Sidell IL
 39.89°N 87.82°W (Elev. 686 ft)
Last Update:
12:11 am CDT May 17, 2026
Forecast Valid:
12am CDT May 17, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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