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.

Overcast

51°F

11°C

Humidity 100%
Wind Speed SE 14 mph
Barometer 29.93 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 15 May 7:15 am CDT
Extended Forecast for

Winchester IL

  • Today

    Today: A 40 percent chance of showers and thunderstorms before 9am. Cloudy through mid morning, then gradual clearing, with a high near 81. South southeast wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Chance
    T-storms then
    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. South wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 63 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 82. South southwest wind 8 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 1am. Mostly cloudy during the early evening, then becoming clear, with a low around 62. South wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 62 °F

    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 88. South wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. South wind around 14 mph, with gusts as high as 25 mph.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. South wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms before 9am. Cloudy through mid morning, then gradual clearing, with a high near 81. South southeast wind 13 to 15 mph, with gusts as high as 25 mph.
Tonight
A 30 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. South wind 7 to 10 mph, with gusts as high as 21 mph.
Saturday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 82. South southwest wind 8 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers before 1am. Mostly cloudy during the early evening, then becoming clear, with a low around 62. South wind 6 to 9 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 88. South wind 10 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 67. South wind around 14 mph, with gusts as high as 25 mph.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. South wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 70%.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 73.
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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:
6:20 am CDT May 15, 2026
Forecast Valid:
7am CDT May 15, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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