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Current Weather Conditions for O Fallon, IL

Mostly sunny, with a high near 80. Southeast wind around 10 mph.
75°F

Conditions

Wind: 9 mph SE
Humidity: 50%
Probability of Precipitation: 0%

Hourly Forcast (next 12 hours)

5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM 12 AM 1 AM 2 AM 3 AM 4 AM 5 AM
75° 78° 79° 79° 80° 79° 79° 77° 72° 70° 69° 67° 66°

Upcoming Week

Day Forecast High Low
This Afternoon
Mostly Sunny
Mostly sunny, with a high near 80. Southeast wind around 10 mph.
80°F 53°F
Tonight
Partly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. Southeast wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
80°F 53°F
Monday
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind 14 to 22 mph, with gusts as high as 35 mph. Chance of precipitation is 50%.
80°F 53°F
Monday Night
Showers And Thunderstorms Likely then Showers And Thunderstorms
Showers and thunderstorms likely before 7pm, then showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 55. Southwest wind 7 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
80°F 53°F
Tuesday
Sunny then Chance Showers And Thunderstorms
A chance of rain showers between 1pm and 4pm, then a chance of showers and thunderstorms. Sunny, with a high near 72. North wind around 7 mph. Chance of precipitation is 30%.
80°F 53°F
Tuesday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
80°F 53°F
Wednesday
Slight Chance Rain Showers then Sunny
A slight chance of rain showers before 7am. Sunny, with a high near 67. Chance of precipitation is 20%.
80°F 53°F
Wednesday Night
Mostly Clear
Mostly clear, with a low around 45.
80°F 53°F
Thursday
Sunny
Sunny, with a high near 68.
80°F 53°F
Thursday Night
Partly Cloudy
Partly cloudy, with a low around 47.
80°F 53°F
Friday
Mostly Sunny
Mostly sunny, with a high near 66.
80°F 53°F
Friday Night
Partly Cloudy
Partly cloudy, with a low around 44.
80°F 53°F
Saturday
Mostly Sunny
Mostly sunny, with a high near 67.
80°F 53°F
Saturday Night
Partly Cloudy
Partly cloudy, with a low around 46.
80°F 53°F
Data provided by weather.gov