OFallon Missouri Weather

OFallon - Weather Data from OFallon, MO

Latitude: N 38° 50' 20" Longitude: W 90° 43' 42" Altitude: 532 ft

CDT UTC Last station update CDT

WXSIM Forecast for: O'Fallon
Issued by: OFallonweather.com

Updated: Friday, 25-Apr-2025 05:00 am

Today Chance rain	Tonight Mostly Cloudy	Saturday Mostly Cloudy	Saturday night Mostly Cloudy	Sunday Mostly Cloudy	Sunday night Partly Cloudy	Monday Mostly Cloudy	Monday night Thunder storm
<.1 in.							<.1 in.
High: 80°	Low: 57°	High: 68°	Low: 50°	High: 72°	Low: 53°	High: 78°	Low: 64°

WSW→WNW 3-26→8-26 mph	NNW 7-21 mph	NNE 7-26 mph	ENE 6-22 mph	ESE 8-27 mph	SE 8-25 mph	S 12-27 mph	S 11-25 mph
UV: 7 High		UV: 7 High		UV: 8 Very High		UV: 6 High

Today	Partly cloudy. A chance of rain in the morning, then a slight chance of rain in the afternoon. Precipitation showery or intermittent. Warm. High 80°. UV index up to 7. Wind west-southwest around 3 mph, gusting to 26 mph, in the morning, becoming west-northwest around 8 mph, gusting to 26 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Tonight	Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 57°. Wind north-northwest around 7 mph, gusting to 21 mph.
Saturday	Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. High 68°. UV index up to 7. Wind north-northeast around 7 mph, gusting to 26 mph.
Saturday night	Mostly cloudy. Low 50°. Wind east-northeast around 6 mph, gusting to 22 mph.
Sunday	Partly to mostly sunny in the morning, becoming partly to mostly cloudy in the afternoon. High 72°. UV index up to 8. Wind east-southeast around 8 mph, gusting to 27 mph.
Sunday night	Fair to partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 53°. Wind southeast around 8 mph, gusting to 25 mph.
Monday	Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Breezy and warm. High 78°. UV index up to 6. Wind south around 12 mph, gusting to 27 mph.
Monday night	Partly to mostly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Scattered thundershowers possible. Breezy. Low 64°. Wind south around 11 mph, gusting to 25 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Tuesday	Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Scattered thunderstorms likely. High 75°. UV index up to 5. Wind southwest around 9 mph, gusting to 24 mph. Chance of precipitation 50 percent. Precipitation mostly around a tenth of an inch.
Tuesday night	Cloudy in the evening, becoming dense overcast after midnight. Patchy light fog in the evening. A chance of rain. Precipitation showery or intermittent. Low 55°. Wind west-northwest around 6 mph, gusting to 17 mph, in the evening, becoming north-northeast after midnight. Chance of precipitation 50 percent. Precipitation mostly around a tenth of an inch.
Wednesday	Dense overcast in the morning, becoming cloudy in the afternoon. Patchy light fog in the morning. Rain likely in the morning, then a slight chance of rain in the afternoon. High 61°. UV index up to 4. Wind northeast around 7 mph, gusting to 19 mph. Chance of precipitation 70 percent. Precipitation mostly between a quarter and half an inch.
Wednesday night	Dense overcast. A slight chance of rain in the evening, then a chance of rain after midnight. Precipitation showery or intermittent. Low 56°. Wind east-northeast around 6 mph, gusting to 19 mph, in the evening, becoming southeast after midnight. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.
Thursday	Dense overcast. Patchy light fog. A slight chance of rain in the morning, then rain likely in the afternoon. Thunderstorms very likely, some possibly severe. High 69°. UV index up to 4. Wind south around 7 mph, gusting to 20 mph, in the morning, becoming 10 mph, gusting to 21 mph, in the afternoon. Chance of precipitation 70 percent. Precipitation mostly between a quarter and half an inch.
Thursday night	Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. Light to moderate fog in the evening. A chance of rain in the evening, then a slight chance of rain after midnight. Precipitation showery or intermittent. Breezy. Low 56°. Wind west-southwest around 14 mph, gusting to 30 mph, in the evening, becoming northwest after midnight. Chance of precipitation 50 percent. Precipitation mostly around a tenth of an inch.

WXSIM forecast formatting script by Saratoga-Weather.org.

Powered by Davis Vantage Pro2 and CumulusMX v 4.4.5 (b4088) MXUI Template v 2.2.6 by Silver Acorn Valid HTML5