7-Day Forecast 38.59°N 89.92°W (Text-Only)
NWS Forecast for: O'Fallon IL
Issued by: National Weather Service Saint Louis, MO
Last Update: 8:37 am CDT Jun 18, 2024




Today: A 20 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 89. South wind 13 to 16 mph, with gusts as high as 25 mph.

Tonight: Mostly cloudy, with a low around 73. South wind 8 to 13 mph becoming light southeast after midnight. Winds could gust as high as 20 mph.

Juneteenth: Partly sunny, with a high near 92. South wind 3 to 8 mph.

Wednesday Night: Partly cloudy, with a low around 72. South wind around 6 mph becoming calm in the evening.

Thursday: Mostly sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.

Thursday Night: Partly cloudy, with a low around 73.

Friday: Mostly sunny, with a high near 96.

Friday Night: Partly cloudy, with a low around 75.

Saturday: Mostly sunny and hot, with a high near 97.

Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78.

Sunday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

Monday: Sunny, with a high near 92.



O'Fallon IL
 38.59°N 89.92°W (Elev. 551 ft)

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