| NWS Forecast for: Gillespie IL Issued by: National Weather Service Saint Louis, MO Last Update: 4:21 pm CDT Jul 15, 2025 |  |
This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. South wind around 6 mph. Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 71. South wind around 5 mph. Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Heat index values as high as 103. Southwest wind 5 to 9 mph. Chance of precipitation is 30%. Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72. Southwest wind around 7 mph. Thursday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. West wind 6 to 8 mph. Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Friday: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Friday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Monday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Tuesday: Mostly sunny, with a high near 92. | |
| Gillespie IL 39.12°N 89.81°W (Elev. 653 ft) | |
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