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

48°F

9°C

Humidity 53%
Wind Speed SE 7 mph
Barometer 29.99 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 9 Feb 4:55 pm CST
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: Mostly clear, with a low around 40. South southeast wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53. West southwest wind 7 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. North northwest wind around 7 mph, with gusts as high as 15 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. North northwest wind 3 to 6 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 29. Calm wind.

    Low: 29 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 45. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 45 °F

    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 29. East southeast wind around 6 mph.

    Low: 29 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 40. South southeast wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Tuesday
Sunny, with a high near 53. West southwest wind 7 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 26. North northwest wind around 7 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 47. North northwest wind 3 to 6 mph.
Wednesday Night
Increasing clouds, with a low around 29. Calm wind.
Thursday
Cloudy, with a high near 45. Calm wind becoming southeast 5 to 7 mph in the morning.
Thursday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 29. East southeast wind around 6 mph.
Friday
Partly sunny, with a high near 46.
Friday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 32.
Saturday
Rain likely, mainly after noon. Cloudy, with a high near 46. Chance of precipitation is 60%.
Saturday Night
Rain. Mostly cloudy, with a low around 33.
Sunday
A chance of rain. Mostly sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 31.
Washington's Birthday
Partly sunny, with a high near 55.
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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:
3:36 pm CST Feb 9, 2026
Forecast Valid:
5pm CST Feb 9, 2026-6pm CST Feb 16, 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