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Current Weather Conditions for O Fallon, IL

A slight chance of rain before 3am. Mostly cloudy. Low around 52, with temperatures rising to around 56 overnight. Southwest wind 15 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
56°F

Conditions

Wind: 18 mph S
Humidity: 83%
Probability of Precipitation: 15%

Hourly Forcast (next 12 hours)

6 AM 7 AM 8 AM 9 AM 10 AM 11 AM 12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM
56° 56° 56° 56° 56° 56° 56° 56° 57° 60° 62° 65° 68°

Upcoming Week

Day Forecast High Low
Overnight
Slight Chance Light Rain
A slight chance of rain before 3am. Mostly cloudy. Low around 52, with temperatures rising to around 56 overnight. Southwest wind 15 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
38°F 22°F
Wednesday
Sunny
Sunny. High near 72, with temperatures falling to around 68 in the afternoon. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.
38°F 22°F
Wednesday Night
Partly Cloudy
Partly cloudy, with a low around 50. South wind 3 to 8 mph.
38°F 22°F
Thursday
Chance T-storms
A chance of thunderstorms and a chance of rain between 9am and 5pm. Partly sunny, with a high near 69. South wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
38°F 22°F
Thursday Night
Mostly Clear
Mostly clear, with a low around 37. West wind 12 to 16 mph, with gusts as high as 24 mph.
38°F 22°F
Friday
Sunny
Sunny, with a high near 50.
38°F 22°F
Friday Night
Partly Cloudy
Partly cloudy, with a low around 31.
38°F 22°F
Saturday
Chance Light Snow
A chance of snow. Mostly sunny, with a high near 43. Chance of precipitation is 40%.
38°F 22°F
Saturday Night
Chance Light Snow
A chance of snow. Partly cloudy, with a low around 27. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
38°F 22°F
Sunday
Slight Chance Light Snow then Mostly Sunny
A slight chance of snow before noon. Mostly sunny, with a high near 38. Chance of precipitation is 20%.
38°F 22°F
Sunday Night
Mostly Clear
Mostly clear, with a low around 20.
38°F 22°F
Monday
Sunny
Sunny, with a high near 37.
38°F 22°F
Monday Night
Partly Cloudy
Partly cloudy, with a low around 21.
38°F 22°F
Tuesday
Mostly Sunny
Mostly sunny, with a high near 46.
38°F 22°F
Data provided by weather.gov