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Current Weather Conditions for O Fallon, IL

Thunderstorms likely and rain likely before 5am, then rain and thunderstorms likely. Cloudy. Low around 61, with temperatures rising to around 68 overnight. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
69°F

Conditions

Wind: 15 mph SW
Humidity: 87%
Probability of Precipitation: 18%

Hourly Forcast (next 12 hours)

7 AM 8 AM 9 AM 10 AM 11 AM 12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM 7 PM
69° 67° 69° 68° 67° 66° 64° 65° 65° 63° 56° 52° 50°

Upcoming Week

Day Forecast High Low
Overnight
T-storms Likely
Thunderstorms likely and rain likely before 5am, then rain and thunderstorms likely. Cloudy. Low around 61, with temperatures rising to around 68 overnight. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
38°F 21°F
Wednesday
T-storms Likely then Rain
Thunderstorms likely and rain likely before 7am, then rain and a chance of thunderstorms between 7am and 5pm. Cloudy. High near 65, with temperatures falling to around 47 in the afternoon. West wind 13 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
38°F 21°F
Wednesday Night
Partly Cloudy
Partly cloudy, with a low around 32. Northwest wind 5 to 20 mph, with gusts as high as 30 mph.
38°F 21°F
Thursday
Sunny
Sunny, with a high near 54. West wind 2 to 10 mph.
38°F 21°F
Thursday Night
Partly Cloudy
Partly cloudy, with a low around 43. South wind 10 to 21 mph, with gusts as high as 31 mph.
38°F 21°F
Friday
Partly Sunny
Partly sunny, with a high near 62.
38°F 21°F
Friday Night
Mostly Cloudy
Mostly cloudy, with a low around 37.
38°F 21°F
Saturday
Mostly Sunny
Mostly sunny, with a high near 64.
38°F 21°F
Saturday Night
Mostly Cloudy
Mostly cloudy, with a low around 53.
38°F 21°F
Sunday
Rain
Rain and a chance of thunderstorms after 7am. Mostly cloudy, with a high near 65. Chance of precipitation is 80%.
38°F 21°F
Sunday Night
Chance Rain And Snow
Rain before 7pm, then a chance of rain and snow between 7pm and 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 80%.
38°F 21°F
Monday
Sunny
Sunny, with a high near 38.
38°F 21°F
Monday Night
Partly Cloudy
Partly cloudy, with a low around 21.
38°F 21°F
Tuesday
Partly Sunny
Partly sunny, with a high near 42.
38°F 21°F
Data provided by weather.gov