Current Weather Conditions for O Fallon, IL
81°F
Conditions
Wind: 6 mph SWHumidity: 82%
Probability of Precipitation: 22%
Hourly Forcast (next 12 hours)
| 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM |
| 81° | 83° | 84° | 86° | 88° | 88° | 90° | 90° | 90° | 91° | 89° | 86° | 83° |
Upcoming Week
| Day | Forecast | High | Low |
|
Today |
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 106. Southwest wind around 8 mph. Chance of precipitation is 30%. |
91°F | 75°F |
|
Tonight |
Mostly Clear
Mostly clear, with a low around 75. Heat index values as high as 108. Southwest wind around 7 mph. |
91°F | 75°F |
|
Wednesday |
Sunny
Sunny, with a high near 94. Heat index values as high as 105. Southwest wind 7 to 14 mph, with gusts as high as 22 mph. |
91°F | 75°F |
|
Wednesday Night |
Mostly Clear
Mostly clear, with a low around 76. Heat index values as high as 103. South wind 8 to 14 mph. |
91°F | 75°F |
|
Thursday |
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. South wind 8 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. |
91°F | 75°F |
|
Thursday Night |
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 80%. |
91°F | 75°F |
|
Friday |
Chance Showers And Thunderstorms then Mostly Sunny
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 85. Chance of precipitation is 30%. |
91°F | 75°F |
|
Friday Night |
Mostly Clear
Mostly clear, with a low around 65. |
91°F | 75°F |
|
Saturday |
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%. |
91°F | 75°F |
|
Saturday Night |
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 50%. |
91°F | 75°F |
|
Sunday |
Chance Rain Showers then Chance Showers And Thunderstorms
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%. |
91°F | 75°F |
|
Sunday Night |
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%. |
91°F | 75°F |
|
Monday |
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 20%. |
91°F | 75°F |
|
Monday Night |
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 20%. |
91°F | 75°F |
| Data provided by weather.gov | |||