WXSIM Forecast for:
O'Fallon Issued by: OFallonweather.com |
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Updated: Tuesday, 18-Mar-2025 04:00 pm | ||||||||||||||||||||||||||||||||||||||||||||||||
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Tonight |
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Breezy and mild. Low 58°. Wind south around 12 mph, gusting to 33 mph. |
Wednesday |
Partly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Scattered thunderstorms likely. Windy and unusually warm. High 74°. UV index up to 6. Wind south-southwest around 15 mph, gusting to 34 mph, in the morning, becoming 20 mph, gusting to 38 mph, in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch. |
Wednesday night |
Dense overcast in the evening, becoming cloudy after midnight. A chance of rain. Precipitation showery or intermittent. Windy. Low 38°. Wind chill ranging from 32 to 56. Wind west around 16 mph, gusting to 36 mph, in the evening, becoming northwest after midnight. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch. |
Thursday |
Partly cloudy in the morning, becoming sunny in the afternoon. Breezy. High 50°. UV index up to 6. Wind northwest around 12 mph, gusting to 30 mph. |
Thursday night |
Clear in the evening, becoming fair after midnight. Low 33°. Wind west around 5 mph, gusting to 22 mph, in the evening, becoming southwest after midnight. |
Friday |
Partly cloudy. Breezy. High 63°. UV index up to 5. Wind south around 10 mph, gusting to 25 mph, in the morning, becoming 14 mph, gusting to 30 mph, in the afternoon. |
Friday night |
Mostly clear. Low 35°. Wind west around 10 mph, gusting to 25 mph. |
Saturday |
Sunny. High 57°. UV index up to 6. Wind northwest around 7 mph, gusting to 25 mph. |
Saturday night |
Partly cloudy in the evening, becoming cloudy after midnight. A chance of rain after midnight. Low 40°. Wind southeast around 4 mph in the evening, becoming 8 mph, gusting to 15 mph, after midnight. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch. |
Sunday |
Cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Rain likely in the morning, then a chance of rain in the afternoon. High 56°. UV index up to 5. Wind south-southeast around 9 mph, gusting to 25 mph, in the morning, becoming south-southwest in the afternoon. Chance of precipitation 70 percent. Precipitation mostly around half an inch. |
Sunday night |
Fair in the evening, becoming clear after midnight. Low 39°. Wind west around 9 mph, gusting to 20 mph. |
Monday |
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Breezy. High 55°. UV index up to 6. Wind west-northwest around 11 mph, gusting to 29 mph. |
Monday night |
Cloudy in the evening, becoming dense overcast after midnight. A chance of rain. Low 41°. Wind west-northwest around 5 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch. |
WXSIM forecast formatting script by Saratoga-Weather.org.