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Current Weather Conditions for O Fallon, IL

Mostly sunny, with a high near 83. Northwest wind around 5 mph.
75°F

Conditions

Wind: 3 mph NW
Humidity: 64%
Probability of Precipitation: 0%

Hourly Forcast (next 12 hours)

3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM 12 AM 1 AM 2 AM 3 AM
75° 77° 79° 80° 81° 82° 82° 83° 83° 82° 78° 73° 72°

Upcoming Week

Day Forecast High Low
Juneteenth
Mostly Sunny
Mostly sunny, with a high near 83. Northwest wind around 5 mph.
83°F 75°F
Tonight
Mostly Cloudy
Mostly cloudy, with a low around 65. Southeast wind 0 to 3 mph.
83°F 75°F
Saturday
Slight Chance Rain Showers then Mostly Sunny
A slight chance of rain showers between 7am and 8am. Mostly sunny, with a high near 86. Southwest wind around 3 mph. Chance of precipitation is 20%.
83°F 75°F
Saturday Night
Partly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Southeast wind around 6 mph. Chance of precipitation is 30%.
83°F 75°F
Sunday
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 84. South wind 7 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
83°F 75°F
Sunday Night
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 90%.
83°F 75°F
Monday
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 1pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.
83°F 75°F
Monday Night
Partly Cloudy
Partly cloudy, with a low around 61.
83°F 75°F
Tuesday
Mostly Sunny
Mostly sunny, with a high near 81.
83°F 75°F
Tuesday Night
Partly Cloudy
Partly cloudy, with a low around 63.
83°F 75°F
Wednesday
Mostly Sunny
Mostly sunny, with a high near 83.
83°F 75°F
Wednesday Night
Mostly Clear
Mostly clear, with a low around 64.
83°F 75°F
Thursday
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
83°F 75°F
Thursday Night
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
83°F 75°F
Data provided by weather.gov