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

80°F

27°C

Humidity 24%
Wind Speed SW 12 G 18 mph
Barometer 30.10 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 9 Apr 4:15 pm CDT
Extended Forecast for

Winchester IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 55. South wind 8 to 10 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.

    Low: 55 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms before 10am, then a chance of showers. High near 63. West southwest wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 45. Northeast wind around 6 mph.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 67. South southeast wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 67 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 59. Southeast wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 76. South southwest wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 76 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 1am. Cloudy, with a low around 62. South southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 83.

    High: 83 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 55. South wind 8 to 10 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.
Friday
Showers and thunderstorms before 10am, then a chance of showers. High near 63. West southwest wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 45. Northeast wind around 6 mph.
Saturday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 67. South southeast wind 7 to 10 mph, with gusts as high as 17 mph.
Saturday Night
Mostly cloudy, with a low around 59. Southeast wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 76. South southwest wind 10 to 18 mph, with gusts as high as 30 mph.
Sunday Night
Showers likely, mainly after 1am. Cloudy, with a low around 62. South southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 83.
Monday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 65.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers. Mostly cloudy, with a high near 78.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 77.
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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 CDT Apr 9, 2026
Forecast Valid:
4pm CDT Apr 9, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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