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Current Weather Conditions for O Fallon, IL

A chance of showers and thunderstorms. Cloudy, with a low around 57. North wind around 9 mph. Chance of precipitation is 40%.
60°F

Conditions

Wind: 9 mph N
Humidity: 90%
Probability of Precipitation: 35%

Hourly Forcast (next 12 hours)

9 AM 10 AM 11 AM 12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM
60° 59° 58° 58° 58° 59° 60° 61° 62° 63° 63° 65° 66°

Upcoming Week

Day Forecast High Low
Overnight
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy, with a low around 57. North wind around 9 mph. Chance of precipitation is 40%.
85°F 66°F
Wednesday
Chance Showers And Thunderstorms then Cloudy
A chance of showers and thunderstorms before 8am. Cloudy, with a high near 67. North wind around 10 mph. Chance of precipitation is 30%.
85°F 66°F
Wednesday Night
Mostly Cloudy
Mostly cloudy, with a low around 53. Northeast wind 5 to 8 mph.
85°F 66°F
Thursday
Mostly Cloudy
Mostly cloudy, with a high near 72. Northeast wind 7 to 10 mph.
85°F 66°F
Thursday Night
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of rain showers between 1am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East wind around 10 mph. Chance of precipitation is 50%.
85°F 66°F
Friday
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 73. Chance of precipitation is 90%.
85°F 66°F
Friday Night
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
85°F 66°F
Saturday
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
85°F 66°F
Saturday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
85°F 66°F
Sunday
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 50%.
85°F 66°F
Sunday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
85°F 66°F
Memorial Day
Chance Showers And Thunderstorms
A chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.
85°F 66°F
Monday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
85°F 66°F
Tuesday
Chance Showers And Thunderstorms
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
85°F 66°F
Data provided by weather.gov