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

40°F

4°C

Humidity 73%
Wind Speed E 10 mph
Barometer 30.20 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Feb 5:55 pm CST
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Southeast wind around 7 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 58. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 35. South wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain likely after noon. Cloudy, with a high near 52. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Cloudy then
    Rain Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. East southeast wind around 6 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain Likely
    then Chance
    Rain

  • Sunday

    Sunday: Sunny, with a high near 58. North wind 3 to 7 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. Light and variable wind.

    Low: 34 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. Southeast wind around 7 mph.
Friday
Sunny, with a high near 58. South wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Increasing clouds, with a low around 35. South wind around 5 mph becoming calm in the evening.
Saturday
Rain likely after noon. Cloudy, with a high near 52. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. East southeast wind around 6 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Sunny, with a high near 58. North wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 34. Light and variable wind.
Washington's Birthday
Partly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly cloudy, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 59.
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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:
5:37 pm CST Feb 12, 2026
Forecast Valid:
6pm CST Feb 12, 2026-6pm CST Feb 19, 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