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

34°F

1°C

Humidity 78%
Wind Speed NW 10 mph
Barometer 30.27 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 12 Mar 12:15 am CDT
Extended Forecast for

Winchester IL

  • Overnight

    Overnight: Clear, with a low around 28. West wind 5 to 8 mph, with gusts as high as 17 mph.

    Low: 28 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 53. Light west southwest wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. Breezy, with a south wind 13 to 20 mph, with gusts as high as 32 mph.

    Low: 41 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 55. West northwest wind 13 to 16 mph, with gusts as high as 26 mph.

    High: 55 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. Northwest wind around 6 mph becoming northeast after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 56. East southeast wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 56 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 1am. Cloudy, with a low around 47. East wind 9 to 15 mph, with gusts as high as 24 mph.

    Low: 47 °F

    Cloudy then
    Chance Rain

  • Sunday

    Sunday: Rain. High near 61. Breezy. Chance of precipitation is 80%.

    High: 61 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 19. Blustery. Chance of precipitation is 30%.

    Low: 19 °F

    Chance
    Rain/Snow and
    Blustery

Detailed Forecast

Overnight
Clear, with a low around 28. West wind 5 to 8 mph, with gusts as high as 17 mph.
Thursday
Sunny, with a high near 53. Light west southwest wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 41. Breezy, with a south wind 13 to 20 mph, with gusts as high as 32 mph.
Friday
Partly sunny, with a high near 55. West northwest wind 13 to 16 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 33. Northwest wind around 6 mph becoming northeast after midnight.
Saturday
Mostly cloudy, with a high near 56. East southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of rain after 1am. Cloudy, with a low around 47. East wind 9 to 15 mph, with gusts as high as 24 mph.
Sunday
Rain. High near 61. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 19. Blustery. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 31. Blustery.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Partly sunny, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly cloudy, with a high near 52.
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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:
8:37 pm CDT Mar 11, 2026
Forecast Valid:
12am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
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