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

42°F

6°C

Humidity 68%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 14 Feb 3:15 pm CST
Extended Forecast for

Sidell IL

  • This Afternoon

    This Afternoon: A 40 percent chance of rain. Cloudy, with a high near 48. South wind around 6 mph.

    High: 48 °F

    Chance Rain

  • Tonight

    Tonight: Rain, mainly before 4am. Patchy fog after 4am. Low around 40. Light and variable wind becoming south southeast around 6 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain and
    Patchy Fog

  • Sunday

    Sunday: A 20 percent chance of rain before 7am. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 56. East northeast wind 6 to 8 mph becoming northwest in the afternoon.

    High: 56 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 35. Calm wind.

    Low: 35 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 58. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. South wind around 7 mph, with gusts as high as 15 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59. South wind 6 to 16 mph, with gusts as high as 24 mph.

    High: 59 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. Breezy.

    Low: 54 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68. Breezy.

    High: 68 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

This Afternoon
A 40 percent chance of rain. Cloudy, with a high near 48. South wind around 6 mph.
Tonight
Rain, mainly before 4am. Patchy fog after 4am. Low around 40. Light and variable wind becoming south southeast around 6 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 20 percent chance of rain before 7am. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 56. East northeast wind 6 to 8 mph becoming northwest in the afternoon.
Sunday Night
Increasing clouds, with a low around 35. Calm wind.
Washington's Birthday
Partly sunny, with a high near 58. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 40. South wind around 7 mph, with gusts as high as 15 mph.
Tuesday
Mostly cloudy, with a high near 59. South wind 6 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 54. Breezy.
Wednesday
Mostly sunny, with a high near 68. Breezy.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
A chance of rain. Mostly sunny, with a high near 64.
Thursday Night
A chance of rain. Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 50.
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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:
3:17 pm CST Feb 14, 2026
Forecast Valid:
3pm CST Feb 14, 2026-6pm CST Feb 20, 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