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Current Weather Conditions for O Fallon, IL

Rain showers likely before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Southwest wind 7 to 10 mph. Chance of precipitation is 60%.
59°F

Conditions

Wind: 10 mph S
Humidity: 100%
Probability of Precipitation: 57%

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
59° 63° 66° 69° 71° 73° 75° 74° 73° 71° 68° 66° 65°

Upcoming Week

Day Forecast High Low
Today
Rain Showers Likely then Slight Chance Showers And Thunderstorms
Rain showers likely before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Southwest wind 7 to 10 mph. Chance of precipitation is 60%.
75°F 59°F
Tonight
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 52. Northwest wind around 6 mph. Chance of precipitation is 20%.
75°F 59°F
Saturday
Sunny
Sunny, with a high near 77. Northeast wind around 7 mph.
75°F 59°F
Saturday Night
Partly Cloudy
Partly cloudy, with a low around 52. Northeast wind around 6 mph.
75°F 59°F
Sunday
Partly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 1pm. Partly sunny, with a high near 75. East wind 6 to 10 mph. Chance of precipitation is 20%.
75°F 59°F
Sunday Night
Slight Chance Rain Showers then Chance Showers And Thunderstorms
A slight chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
75°F 59°F
Monday
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 79. Chance of precipitation is 70%.
75°F 59°F
Monday Night
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly cloudy, with a low around 55. Chance of precipitation is 70%.
75°F 59°F
Tuesday
Slight Chance Rain Showers
A slight chance of rain showers. Sunny, with a high near 72. Chance of precipitation is 20%.
75°F 59°F
Tuesday Night
Chance Showers And Thunderstorms
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 30%.
75°F 59°F
Wednesday
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71. Chance of precipitation is 20%.
75°F 59°F
Wednesday Night
Chance Rain Showers
A chance of rain showers. Partly cloudy, with a low around 51. Chance of precipitation is 40%.
75°F 59°F
Thursday
Chance Rain Showers
A chance of rain showers. Mostly sunny, with a high near 69. Chance of precipitation is 40%.
75°F 59°F
Thursday Night
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
75°F 59°F
Data provided by weather.gov