National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Mostly Cloudy

38°F

3°C

Humidity 47%
Wind Speed NE 10 mph
Barometer 30.38 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 1 Mar 6:35 pm CST
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: Snow, possibly mixed with rain before 2am, then a slight chance of snow between 2am and 3am. Low around 31. East wind around 8 mph, with gusts as high as 16 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 31 °F

    Snow then
    Rain/Snow

  • Monday

    Monday: A 20 percent chance of rain before 8am. Mostly cloudy, with a high near 47. East wind 6 to 9 mph, with gusts as high as 17 mph.

    High: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday Night

    Monday Night: Showers after midnight. Low around 38. East southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Cloudy then
    Showers

  • Tuesday

    Tuesday: Showers. High near 58. Southeast wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers. Low around 49. East wind around 6 mph becoming south after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 66. South southwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 46. Southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Snow, possibly mixed with rain before 2am, then a slight chance of snow between 2am and 3am. Low around 31. East wind around 8 mph, with gusts as high as 16 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.
Monday
A 20 percent chance of rain before 8am. Mostly cloudy, with a high near 47. East wind 6 to 9 mph, with gusts as high as 17 mph.
Monday Night
Showers after midnight. Low around 38. East southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers. High near 58. Southeast wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers. Low around 49. East wind around 6 mph becoming south after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 66. South southwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 46. Southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Friday
Showers likely. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
Friday Night
Showers likely. Cloudy, with a low around 42.
Saturday
A chance of showers. Mostly cloudy, with a high near 60.
Saturday Night
A chance of showers. Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 67.
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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:
6:36 pm CST Mar 1, 2026
Forecast Valid:
6pm CST Mar 1, 2026-6pm CDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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