Find the Best Places in the United States

Compare Cost of Living, Education, Income, Population, and More.

Current Weather Conditions for O Fallon, IL

Rain and patchy fog. Cloudy, with a high near 56. Northeast wind around 7 mph. Chance of precipitation is 100%.
53°F

Conditions

Wind: 6 mph E
Humidity: 96%
Probability of Precipitation: 100%

Hourly Forcast (next 12 hours)

12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM 12 AM
53° 54° 54° 54° 55° 55° 55° 55° 56° 56° 56° 56° 55°

Upcoming Week

Day Forecast High Low
Today
Rain
Rain and patchy fog. Cloudy, with a high near 56. Northeast wind around 7 mph. Chance of precipitation is 100%.
44°F 28°F
Tonight
Light Rain Likely
A chance of rain before midnight, then rain likely and patchy fog between midnight and 5am. Cloudy, with a low around 45. North wind around 8 mph. Chance of precipitation is 60%.
44°F 28°F
Saturday
Sunny
Sunny. High near 58, with temperatures falling to around 53 in the afternoon. North wind around 6 mph.
44°F 28°F
Saturday Night
Mostly Clear
Mostly clear, with a low around 39. West wind around 2 mph.
44°F 28°F
Sunday
Sunny
Sunny. High near 63, with temperatures falling to around 58 in the afternoon. Southwest wind around 5 mph.
44°F 28°F
Sunday Night
Mostly Cloudy
Mostly cloudy, with a low around 44.
44°F 28°F
Monday
Light Rain Likely
Rain likely. Cloudy, with a high near 59. Chance of precipitation is 60%.
44°F 28°F
Monday Night
Rain
Rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 80%.
44°F 28°F
Tuesday
Slight Chance Light Rain then Partly Sunny
A slight chance of rain before noon. Partly sunny, with a high near 63. Chance of precipitation is 20%.
44°F 28°F
Tuesday Night
Mostly Cloudy
Mostly cloudy, with a low around 37.
44°F 28°F
Wednesday
Mostly Sunny
Mostly sunny, with a high near 48.
44°F 28°F
Wednesday Night
Partly Cloudy
Partly cloudy, with a low around 28.
44°F 28°F
Thanksgiving Day
Mostly Sunny
Mostly sunny, with a high near 45.
44°F 28°F
Thursday Night
Partly Cloudy
Partly cloudy, with a low around 26.
44°F 28°F
Data provided by weather.gov