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

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

37°F

3°C

Humidity 69%
Wind Speed NW 13 mph
Barometer 30.15 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 10 Feb 10:35 pm CST
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: Mostly clear, with a low around 26. North northwest wind 8 to 10 mph, with gusts as high as 16 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 49. Northwest wind 5 to 8 mph.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 30. Calm wind.

    Low: 30 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 48. Calm wind becoming south southeast 5 to 7 mph in the morning.

    High: 48 °F

    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Southeast wind 3 to 6 mph.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 52. South southeast wind 3 to 6 mph.

    High: 52 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. Light southeast wind.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after noon. Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 26. North northwest wind 8 to 10 mph, with gusts as high as 16 mph.
Wednesday
Sunny, with a high near 49. Northwest wind 5 to 8 mph.
Wednesday Night
Increasing clouds, with a low around 30. Calm wind.
Thursday
Cloudy, with a high near 48. Calm wind becoming south southeast 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 31. Southeast wind 3 to 6 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 52. South southeast wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 33. Light southeast wind.
Saturday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 51.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Sunday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 33.
Washington's Birthday
Mostly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winchester IL
 39.62°N 90.44°W (Elev. 499 ft)
Last Update:
9:36 pm CST Feb 10, 2026
Forecast Valid:
10pm CST Feb 10, 2026-6pm CST Feb 17, 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