WXSIM Forecast for: O'Fallon
Issued by: OFallonweather.com
Updated: Monday, 24-Jun-2024 05:00 am
 
Today

Mostly Sunny
Hot!
Mostly Sunny
Hot!
Tonight

Partly Cloudy
Partly Cloudy
Tuesday

Partly Cloudy
Hot!
Partly Cloudy
Hot!
Tuesday
night
Thunder storm
Thunder storm
Wednesday

Thunder storm
Thunder storm
Wednesday
night
Clear
Clear
Thursday

Mostly Cloudy
Mostly Cloudy
Thursday
night
Mostly Cloudy
Mostly Cloudy
.75 in. .5 in.
High: 98° Low: 74° High: 99° Low: 69° High: 88° Low: 64° High: 84° Low: 69°
Heat: 102°   Heat: 106°   Heat: 94°      
SSE
5-26
mph
S
6-20
mph
SW
10-31→13-31
mph
SW→NNE
4-24
mph
NNW
3-22→9-28
mph
NNE
6-26
mph
ENE
7-26
mph
ESE
6-23
mph
UV: 9
 Very High 
UV: 8
 Very High 
UV: 9
 Very High 
UV: 9
 Very High 

 

Today
 
Partly to mostly sunny. Very hot. High 98°. Heat index up to 102°. UV index up to 9. Wind south-southeast around 5 mph, gusting to 26 mph.
Tonight
 
Fair in the evening, becoming partly cloudy after midnight. Low 74°. Wind south around 6 mph, gusting to 20 mph.
Tuesday
 
Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Breezy and very hot. High 99°. Heat index up to 106°. UV index up to 8. Wind southwest around 10 mph, gusting to 31 mph, in the morning, becoming 13 mph, gusting to 31 mph, in the afternoon.
Tuesday night
 
Fair to partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog after midnight. A slight chance of rain in the evening, then rain likely after midnight. Scattered thundershowers possible. Low 69°. Wind southwest around 4 mph, gusting to 24 mph, in the evening, becoming north-northeast after midnight. Chance of precipitation 70 percent. Precipitation mostly between half an inch and one inch.
Wednesday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly sunny in the afternoon. Moderate fog in the morning. Rain likely in the morning, then a slight chance of rain in the afternoon. Scattered thundershowers possible. High 88°. Heat index up to 94°. UV index up to 9. Wind north-northwest around 3 mph, gusting to 22 mph, in the morning, becoming 9 mph, gusting to 28 mph, in the afternoon. Chance of precipitation 70 percent. Precipitation mostly around half an inch.
Wednesday night
 
Clear. Relatively cool. Low 64°. Wind north-northeast around 6 mph, gusting to 26 mph.
Thursday
 
Sunny in the morning, becoming partly to mostly cloudy in the afternoon. High 84°. UV index up to 9. Wind east-northeast around 7 mph, gusting to 26 mph.
Thursday night
 
Partly to mostly cloudy in the evening, becoming cloudy after midnight. Low 69°. Wind east-southeast around 6 mph, gusting to 23 mph.
Friday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Hot. High 93°. Heat index up to 97°. UV index up to 9. Wind east-southeast around 7 mph, gusting to 26 mph, in the morning, becoming south around 12 mph, gusting to 30 mph, in the afternoon.
Friday night
 
Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Low 76°. Wind south around 10 mph, gusting to 27 mph.
Saturday
 
Partly to mostly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Scattered thunderstorms likely, some possibly severe. Very hot. High 98°. Heat index up to 108°. UV index up to 10. Wind west-southwest around 8 mph, gusting to 27 mph. Chance of precipitation 40 percent. Precipitation mostly around a tenth of an inch.
Saturday night
 
Mostly cloudy. Patchy light fog. A chance of rain. Scattered thundershowers possible. Low 73°. Wind west-northwest around 5 mph, gusting to 18 mph. Chance of precipitation 40 percent. Precipitation mostly around a tenth of an inch.
Sunday
 
Mostly cloudy to cloudy. A chance of rain. Precipitation showery or intermittent. High 82°. UV index up to 8. Wind north around 8 mph, gusting to 26 mph. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.
Sunday night
 
Partly cloudy in the evening, becoming clear after midnight. Relatively cool. Low 64°. Wind north-northeast around 7 mph, gusting to 25 mph.

WXSIM forecast formatting script by Saratoga-Weather.org.

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