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

22°F

-6°C

Humidity 55%
Wind Speed SW 5 mph
Barometer 30.36 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 23 Feb 8:55 pm CST
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: Partly cloudy, with a low around 17. Light south wind increasing to 5 to 10 mph after midnight. Winds could gust as high as 17 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 53. Breezy, with a south southeast wind 13 to 23 mph becoming west southwest in the afternoon. Winds could gust as high as 37 mph.

    High: 53 °F

    Increasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. West southwest wind 7 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. Northwest wind around 6 mph becoming northeast in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then rain and snow likely between midnight and 3am, then rain likely after 3am. Mostly cloudy, with a low around 31. East northeast wind 5 to 7 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 46. East northeast wind 6 to 8 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 46 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Light and variable wind becoming south around 6 mph after midnight.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 17. Light south wind increasing to 5 to 10 mph after midnight. Winds could gust as high as 17 mph.
Tuesday
Increasing clouds, with a high near 53. Breezy, with a south southeast wind 13 to 23 mph becoming west southwest in the afternoon. Winds could gust as high as 37 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. West southwest wind 7 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 48. Northwest wind around 6 mph becoming northeast in the afternoon.
Wednesday Night
A chance of rain before midnight, then rain and snow likely between midnight and 3am, then rain likely after 3am. Mostly cloudy, with a low around 31. East northeast wind 5 to 7 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 46. East northeast wind 6 to 8 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly clear, with a low around 29. Light and variable wind becoming south around 6 mph after midnight.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 42.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 26.
Monday
A chance of rain. Mostly cloudy, with a high near 42.
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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:
8:36 pm CST Feb 23, 2026
Forecast Valid:
9pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation