10-Day Weather Forecast - O'Fallon, MO
- |74°FMostly ClearHourly details
Tonight
74°FMostly clear. Lows in the upper 60s. Southwest winds around 5 mph late this evening becoming light and variable.
- 89|75°FSunnyHourly details
Day
89°FSunny. Highs in the lower 90s. Southwest winds around 5 mph.
Night
75°FMostly clear. Lows in the lower 70s. South winds around 5 mph.
- 91|74°FSunnyHourly details
Day
91°FSunny. Highs in the lower 90s. South winds 5 to 10 mph.
Night
74°FMostly clear. Lows in the lower 70s. South winds around 5 mph.
Weekend Weather
- 91|75°FMostly SunnyHourly details
Day
91°FMostly sunny. Highs in the lower 90s.
Night
75°FPartly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent.
- 87|74°F40% Chance of StormsHourly details
Day
87°FPartly cloudy. A chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 40 percent.
Night
74°FPartly cloudy. A chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 40 percent.
- 83|73°F50% Chance of StormsHourly details
Day
83°FMostly sunny with a chance of showers. A slight chance of thunderstorms in the morning then a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent.
Night
73°FPartly cloudy with a slight chance of showers and thunderstorms. Lows around 70. Chance of rain 20 percent.
- 86|73°F40% Chance of StormsHourly details
Day
86°FPartly cloudy with a chance of showers and thunderstorms. Highs around 90. Lows in the lower 70s. Chance of rain 40 percent.
Night
73°FPartly cloudy with a chance of showers and thunderstorms. Highs around 90. Lows in the lower 70s. Chance of rain 40 percent.
- 87|74°F40% Chance of Storms
Day
87°FPartly cloudy with a chance of showers and thunderstorms. Highs around 90. Lows in the lower 70s. Chance of rain 40 percent.
Night
74°FClear with a 65% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 71F with an average humidity of 80%. Winds will be 2 mph from the SW.
- 85|71°F50% Chance of Rain
Day
85°FMostly sunny with a 45% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 70F with an average humidity of 69%. Winds will be 2 mph from the W.
Night
71°FMostly clear with a 40% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 69F with an average humidity of 81%. Winds will be 3 mph from the NW.
- 85|71°F40% Chance of Rain
Day
85°FMostly sunny with a 35% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 67F with an average humidity of 64%. Winds will be 3 mph from the W.
Night
71°FClear with a 40% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 67F with an average humidity of 78%. Winds will be 3 mph from the W.
