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 63%
Wind Speed W 3 mph
Barometer 29.68 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 25 Feb 3:15 am CST
Extended Forecast for

Winchester IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 29. Northwest wind around 6 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49. Northwest wind 3 to 7 mph. Winds could gust as high as 15 mph.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely before 2am, then rain and snow likely between 2am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 30. Northeast wind 3 to 8 mph. Winds could gust as high as 17 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 51. East northeast wind 5 to 7 mph becoming southwest in the afternoon.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. South wind 3 to 6 mph.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. Southwest wind around 7 mph becoming northeast after midnight. Winds could gust as high as 16 mph.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. Northwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 49. Northwest wind 3 to 7 mph. Winds could gust as high as 15 mph.
Wednesday Night
Rain likely before 2am, then rain and snow likely between 2am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 30. Northeast wind 3 to 8 mph. Winds could gust as high as 17 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
Mostly sunny, with a high near 51. East northeast wind 5 to 7 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 32. South wind 3 to 6 mph.
Friday
Sunny, with a high near 66. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 36. Southwest wind around 7 mph becoming northeast after midnight. Winds could gust as high as 16 mph.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
A chance of rain and snow after noon. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 26.
Monday
A chance of rain. Mostly cloudy, with a high near 37.
Monday Night
A chance of rain. Mostly cloudy, with a low around 25.
Tuesday
A chance of rain. Mostly cloudy, with a high near 41.
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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:
2:37 am CST Feb 25, 2026
Forecast Valid:
3am CST Feb 25, 2026-6pm CST Mar 3, 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