Forecast Summary
The next few hours will be overcast, with tomorrow reaching 11°C and dropping to 0°C. The coming days will be hazy throughout the day.
Current Weather
15°
Overcast
Feels Like
2°
Min
3°
Max
8°
Compared to Yesterday
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Compare today's weather with yesterday's data and track temperature trends over time.
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Hourly Forecast
Weather forecast for the next 48 hours.
25%
24%
24%
27%
29%
30%
21%
16%
10%
8%
6%
5%
7%
5%
6%
7%
5%
5%
6%
7%
9%
12%
12%
12%
12%
10%
UV Index
No protection needed
Humidity
Current air moisture level
Daylight Hours
13 hours 36 minutes of sunlight today
06:11
Sunrise
19:48
Sunset
Daily Forecast
Weather forecast for the next 8 days.
Thursday
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
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Frequently asked questions about weather in O'Fallon
How warm does it get in O'Fallon?
The warmest month in O'Fallon is July, with average high temperatures of 31°C. The average temperature during this period is around 26°C.
How cold does it get in O'Fallon?
The coldest month in O'Fallon is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.
What is the wettest time of year in O'Fallon?
The wettest month in O'Fallon is May, with an average of 126mm of precipitation.
What is the driest time of year in O'Fallon?
The driest month in O'Fallon is February, with an average of 67mm of precipitation.
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