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.

Overcast

33°F

1°C

Humidity 99%
Wind Speed NW 9 mph
Barometer 29.96 in
Dewpoint 33°F (1°C)
Visibility 4.00 mi
Wind Chill25°F (-4°C)
Last update 7 Dec 6:55 am CST
Extended Forecast for

Winchester IL

  • Today

    Today: Cloudy, with a temperature falling to around 27 by 5pm. West northwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 24 mph.

    High: 34 °F⇓

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 15. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 15 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30. Calm wind becoming south around 5 mph in the afternoon.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 20. South wind 5 to 10 mph, with gusts as high as 22 mph.

    Low: 20 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. Southwest wind around 11 mph, with gusts as high as 21 mph.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. South southwest wind 11 to 16 mph becoming west after midnight. Winds could gust as high as 29 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 42. West wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 42 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow. Mostly cloudy, with a high near 32.

    High: 32 °F

    Chance Snow

Detailed Forecast

Today
Cloudy, with a temperature falling to around 27 by 5pm. West northwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Tonight
Mostly cloudy, with a low around 15. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.
Monday
Mostly sunny, with a high near 30. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 20. South wind 5 to 10 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 46. Southwest wind around 11 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South southwest wind 11 to 16 mph becoming west after midnight. Winds could gust as high as 29 mph.
Wednesday
Mostly cloudy, with a high near 42. West wind 8 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 32.
Thursday Night
Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 20.
Friday Night
Mostly cloudy, with a low around 2.
Saturday
Partly sunny, with a high near 17.
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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:
4:57 am CST Dec 7, 2025
Forecast Valid:
7am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
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