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

49°F

9°C

Humidity 53%
Wind Speed S 9 mph
Barometer 29.85 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 9 Mar 2:35 am CDT
Extended Forecast for

Winchester IL

  • Overnight

    Overnight: Clear, with a low around 44. South southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77. South southwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. South wind around 8 mph, with gusts as high as 17 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 81. South southwest wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Mostly Sunny
    then T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Low around 47. South wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 47 °F

    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 61. Breezy, with a west southwest wind 13 to 20 mph becoming northwest in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 44. South southwest wind around 9 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 77. South southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 57. South wind around 8 mph, with gusts as high as 17 mph.
Tuesday
Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 81. South southwest wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Low around 47. South wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 61. Breezy, with a west southwest wind 13 to 20 mph becoming northwest in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Partly cloudy, with a low around 29. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 59.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
A chance of rain. Mostly cloudy, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winchester IL
 39.62°N 90.44°W (Elev. 499 ft)
Last Update:
2:46 am CDT Mar 9, 2026
Forecast Valid:
2am CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation