7-Day Forecast 39.62°N 90.44°W (Text-Only)
NWS Forecast for: Winchester IL
Issued by: National Weather Service Lincoln, IL
Last Update: 12:56 pm CDT Jul 13, 2025




This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Southeast wind around 5 mph.

Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 3am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 67. Light southeast wind.

Monday: Areas of dense fog before 8am. Otherwise, mostly sunny, with a high near 86. Light and variable wind.

Monday Night: Partly cloudy, with a low around 69. Calm wind.

Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south around 6 mph in the morning.

Tuesday Night: Partly cloudy, with a low around 71. South wind 3 to 5 mph.

Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Southwest wind 6 to 8 mph, with gusts as high as 15 mph.

Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.

Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.

Thursday Night: Partly cloudy, with a low around 66.

Friday: Mostly sunny, with a high near 83.

Friday Night: Partly cloudy, with a low around 68.

Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86.



Winchester IL
 39.62°N 90.44°W (Elev. 499 ft)

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