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.

Partly Cloudy

25°F

-4°C

Humidity 60%
Wind Speed NW 15 G 24 mph
Barometer 30.32 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 21 Feb 9:55 pm CST
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: Partly cloudy, with a low around 17. Wind chill values between 4 and 14. Northwest wind 11 to 16 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 29. Wind chill values between 1 and 11. Blustery, with a northwest wind 17 to 21 mph, with gusts as high as 31 mph.

    High: 29 °F

    Mostly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13. Wind chill values between -2 and 8. North northwest wind 14 to 17 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 32. Wind chill values between -2 and 8. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 17. Calm wind becoming south 5 to 7 mph after midnight. Winds could gust as high as 15 mph.

    Low: 17 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 52. South wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 52 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. South southwest wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 18 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 17. Wind chill values between 4 and 14. Northwest wind 11 to 16 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 29. Wind chill values between 1 and 11. Blustery, with a northwest wind 17 to 21 mph, with gusts as high as 31 mph.
Sunday Night
Partly cloudy, with a low around 13. Wind chill values between -2 and 8. North northwest wind 14 to 17 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 32. Wind chill values between -2 and 8. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.
Monday Night
Increasing clouds, with a low around 17. Calm wind becoming south 5 to 7 mph after midnight. Winds could gust as high as 15 mph.
Tuesday
Mostly cloudy, with a high near 52. South wind 8 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 35. South southwest wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 18 mph.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 29.
Thursday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 36.
Saturday
Mostly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winchester IL
 39.62°N 90.44°W (Elev. 499 ft)
Last Update:
9:36 pm CST Feb 21, 2026
Forecast Valid:
10pm CST Feb 21, 2026-6pm CST Feb 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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