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.

Partly Cloudy

79°F

26°C

Humidity 57%
Wind Speed SW 17 G 23 mph
Barometer 29.96 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 13 Apr 11:35 am CDT
Extended Forecast for

Winchester IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms before 2pm. Partly sunny, with a high near 84. South southwest wind 15 to 17 mph, with gusts as high as 26 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 67. South wind 13 to 16 mph, with gusts as high as 28 mph.

    Low: 67 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 87. South southwest wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm between 7pm and 1am, then showers likely after 1am. Increasing clouds, with a low around 66. South southwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 10am. High near 78. South southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 81. Southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 81 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before 2pm. Partly sunny, with a high near 84. South southwest wind 15 to 17 mph, with gusts as high as 26 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 67. South wind 13 to 16 mph, with gusts as high as 28 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 87. South southwest wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
Showers likely and possibly a thunderstorm between 7pm and 1am, then showers likely after 1am. Increasing clouds, with a low around 66. South southwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers, with thunderstorms also possible after 10am. High near 78. South southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 81. Southwest wind around 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 58.
Friday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 86.
Friday Night
Showers and possibly a thunderstorm. Low around 55. Chance of precipitation is 80%.
Saturday
A chance of showers. Partly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Sunny, 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:
11:26 am CDT Apr 13, 2026
Forecast Valid:
11am CDT Apr 13, 2026-6pm CDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation