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

25°C

77°F

Humidity 98%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 24°C (76°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 12 Jul 8:10 pm CDT
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: Partly cloudy, with a low around 21. West northwest wind 5 to 8 km/h becoming calm in the evening.

    Low: 21 °C

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 28. Calm wind becoming southwest 5 to 8 km/h in the morning. Chance of precipitation is 30%.

    High: 28 °C

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20. Calm wind.

    Low: 20 °C

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31. South southeast wind 3 to 8 km/h.

    High: 31 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °C

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 31. South wind 5 to 11 km/h.

    High: 31 °C

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 22. South wind 8 to 10 km/h.

    Low: 22 °C

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 32.

    High: 32 °C

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 22.

    Low: 22 °C

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 21. West northwest wind 5 to 8 km/h becoming calm in the evening.
Sunday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 28. Calm wind becoming southwest 5 to 8 km/h in the morning. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 20. Calm wind.
Monday
Mostly sunny, with a high near 31. South southeast wind 3 to 8 km/h.
Monday Night
Partly cloudy, with a low around 21. Calm wind.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 31. South wind 5 to 11 km/h.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 22. South wind 8 to 10 km/h.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 32.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 22.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 29.
Friday Night
Partly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winchester IL
 39.62°N 90.44°W (Elev. 499 m)
Last Update:
5:41 pm CDT Jul 12, 2025
Forecast Valid:
8pm CDT Jul 12, 2025-6pm CDT Jul 19, 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