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

57°F

14°C

Humidity 26%
Wind Speed NE 9 mph
Barometer 30.01 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 28 Feb 4:15 pm CST
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: Mostly clear, with a low around 25. North northeast wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 42. Northeast wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 42 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Snow likely. Cloudy, with a low around 29. East wind around 8 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 29 °F

    Snow Likely

  • Monday

    Monday: A chance of rain and snow before 9am, then a chance of rain between 9am and noon. Cloudy, with a high near 44. East southeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    High: 44 °F

    Chance
    Rain/Snow
    then Cloudy

  • Monday Night

    Monday Night: Rain. Low around 37. Southeast wind around 7 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain Likely
    then Rain

  • Tuesday

    Tuesday: Rain before noon, then rain and possibly a thunderstorm between noon and 3pm, then rain after 3pm. High near 57. South wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 57 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 47. East wind around 7 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm. Cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.

    Low: 47 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 25. North northeast wind 8 to 11 mph, with gusts as high as 22 mph.
Sunday
Increasing clouds, with a high near 42. Northeast wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Snow likely. Cloudy, with a low around 29. East wind around 8 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Monday
A chance of rain and snow before 9am, then a chance of rain between 9am and noon. Cloudy, with a high near 44. East southeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Monday Night
Rain. Low around 37. Southeast wind around 7 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain before noon, then rain and possibly a thunderstorm between noon and 3pm, then rain after 3pm. High near 57. South wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain and possibly a thunderstorm. Low around 47. East wind around 7 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 64. Chance of precipitation is 70%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Thursday
Rain likely, mainly before noon. Partly sunny, with a high near 67. Chance of precipitation is 60%.
Thursday Night
A chance of rain and thunderstorms. Partly cloudy, with a low around 51.
Friday
Rain likely. Mostly cloudy, with a high near 69.
Friday Night
Rain likely. Mostly cloudy, with a low around 49.
Saturday
Rain likely. Mostly cloudy, with a high near 63.
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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:
3:36 pm CST Feb 28, 2026
Forecast Valid:
4pm CST Feb 28, 2026-6pm CST Mar 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation