WXSIM Forecast for: O'Fallon
Issued by: OFallonweather.com
Updated: Wednesday, 18-Sep-2024 05:00 am
 
Today

Partly Cloudy
Partly Cloudy
Tonight

Mostly Clear
Mostly Clear
Thursday

Sunny
Sunny
Thursday
night
Partly Cloudy
Partly Cloudy
Friday

Mostly Sunny
Mostly Sunny
Friday
night
Partly Cloudy
Partly Cloudy
Saturday

Chance rain
Chance rain
Saturday
night
Chance rain
Chance rain
.1 in. .1 in.
High: 85° Low: 56° High: 89° Low: 64° High: 94° Low: 68° High: 86° Low: 70°
               
SSE
2-17→5-21
mph
SSE→SSW
4
mph
SSW
4-20→7-24
mph
SSW
5
mph
SSW
7-26
mph
SSW→SE
6-17→3
mph
SSW
7-22
mph
WNW→N
2
mph
UV: 5
 Medium 
UV: 6
 High 
UV: 7
 High 

 

Today
 
Sunny in the morning, becoming partly cloudy in the afternoon. Hot. High 85°. UV index up to 5. Wind south-southeast around 2 mph, gusting to 17 mph, in the morning, becoming 5 mph, gusting to 21 mph, in the afternoon.
Tonight
 
Mostly clear in the evening, becoming clear after midnight. Low 56°. Wind south-southeast around 4 mph in the evening, becoming south-southwest after midnight.
Thursday
 
Sunny. Unusually hot. High 89°. UV index up to 6. Wind south-southwest around 4 mph, gusting to 20 mph, in the morning, becoming 7 mph, gusting to 24 mph, in the afternoon.
Thursday night
 
Mostly clear in the evening, becoming partly cloudy after midnight. Low 64°. Wind south-southwest around 5 mph.
Friday
 
Sunny in the morning, becoming partly to mostly sunny in the afternoon. Very hot. High 94°. UV index up to 7. Wind south-southwest around 7 mph, gusting to 26 mph.
Friday night
 
Partly to mostly cloudy in the evening, becoming partly cloudy after midnight. Warm. Low 68°. Wind south-southwest around 6 mph, gusting to 17 mph, in the evening, becoming southeast around 3 mph after midnight.
Saturday
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. A chance of rain in the morning, then a slight chance of rain in the afternoon. Precipitation showery or intermittent. Hot. High 86°. Wind south-southwest around 7 mph, gusting to 22 mph. Chance of precipitation 40 percent. Precipitation mostly around a tenth of an inch.
Saturday night
 
Cloudy. A slight chance of rain in the evening, then a chance of rain after midnight. Precipitation showery or intermittent. Warm. Low 70°. Wind west-northwest around 2 mph in the evening, becoming north after midnight. Chance of precipitation 40 percent. Precipitation mostly around a tenth of an inch.
Sunday
 
Cloudy in the morning, becoming partly cloudy in the afternoon. Light to moderate fog in the morning, then moderate fog in the afternoon. Rain likely in the morning, then a chance of rain in the afternoon. Precipitation showery or intermittent. High 79°. UV index up to 5. Wind east-southeast around 2 mph in the morning, becoming 6 mph, gusting to 20 mph, in the afternoon. Chance of precipitation 70 percent. Precipitation mostly around half an inch.
Sunday night
 
Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog. A chance of rain in the evening, then a slight chance of rain after midnight. Precipitation showery or intermittent. Warm. Low 71°. Wind east-southeast around 8 mph, gusting to 19 mph, in the evening, becoming 3 mph after midnight. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Monday
 
Cloudy. Warm. High 83°. Wind south around 4 mph, gusting to 17 mph, in the morning, becoming 7 mph, gusting to 20 mph, in the afternoon.
Monday night
 
Partly cloudy in the evening, becoming fair to partly cloudy after midnight. Light to moderate fog in the evening, then moderate fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Scattered thundershowers possible. Warm. Low 69°. Wind south-southwest around 6 mph. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.
Tuesday
 
Mostly cloudy in the morning, becoming sunny in the afternoon. Patchy light fog in the morning. Warm. High 83°. UV index up to 6. Wind west-southwest around 8 mph, gusting to 27 mph.
Tuesday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Low 65°. Wind northwest around 4 mph, gusting to 22 mph.

WXSIM forecast formatting script by Saratoga-Weather.org.

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