7-Day Forecast 39.12°N 89.81°W (Text-Only)
NWS Forecast for: Gillespie IL
Issued by: National Weather Service Saint Louis, MO
Last Update: 12:21 pm CDT Jul 13, 2025




This Afternoon: Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 82. East wind around 6 mph. Chance of precipitation is 70%.

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 67. Light and variable wind.

Monday: Areas of fog before 8am. Otherwise, partly sunny, with a high near 86. Calm wind becoming southeast around 5 mph.

Monday Night: Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.

Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Calm wind becoming south 5 to 7 mph in the morning.

Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 71.

Wednesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 71.

Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87.

Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67.

Friday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.

Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

Saturday: A 20 percent chance of showers. Mostly sunny, with a high near 88.



Gillespie IL
 39.12°N 89.81°W (Elev. 653 ft)

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