10-Day Weather Forecast - O'Fallon, MO
- 84|67°FMostly SunnyHourly details
Today
84°FMostly sunny with a slight chance of showers and thunderstorms. Near steady temperature in the mid 80s. Northeast winds around 5 mph. Chance of rain 20 percent.
Tonight
67°FMostly clear with a slight chance of showers and thunderstorms in the evening then partly cloudy after midnight. Lows in the upper 60s. East winds around 5 mph. Chance of rain 20 percent.
- 86|70°FMostly SunnyHourly details
Day
86°FMostly sunny. Highs in the upper 80s. Light and variable winds becoming southeast around 5 mph in the afternoon.
Night
70°FMostly clear. Lows around 70. Southeast winds around 5 mph.
- 90|72°FSunnyHourly details
Day
90°FSunny. Highs in the lower 90s. South winds around 5 mph.
Night
72°FMostly clear. Lows in the lower 70s. Highs in the lower 90s.
- 93|73°FMostly SunnyHourly details
Day
93°FMostly clear. Lows in the lower 70s. Highs in the lower 90s.
Night
73°FMostly clear. Lows in the lower 70s. Highs in the lower 90s.
Weekend Weather
- 91|74°FMostly SunnyHourly details
Day
91°FMostly clear. Lows in the lower 70s. Highs in the lower 90s.
Night
74°FMostly clear. Lows in the lower 70s. Highs in the lower 90s.
- 92|75°FMostly SunnyHourly details
Day
92°FMostly clear. Lows in the lower 70s. Highs in the lower 90s.
Night
75°FPartly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 20 percent.
- 90|74°FPartly Cloudy
Day
90°FPartly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 70s. Highs in the lower 90s. Chance of rain 20 percent.
Night
74°FPartly cloudy with a 55% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 71F with an average humidity of 81%. Winds will be 3 mph from the W.
- 89|72°F50% Chance of Rain
Day
89°FMostly sunny with a 50% chance for rain and thunderstorms. High temperature around 89F. Dew point will be around 72F with an average humidity of 69%. Winds will be 4 mph from the W.
Night
72°FMostly clear with a 40% chance for rain and thunderstorms. Low temperature around 72F. Dew point will be around 69F with an average humidity of 76%. Winds will be 2 mph from the W.
- 89|74°F30% Chance of Rain
Day
89°FMostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 89F. Dew point will be around 71F with an average humidity of 66%. Winds will be 2 mph from the SW.
Night
74°FMostly clear with a 30% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 68F with an average humidity of 70%. Winds will be 2 mph from the S.
- 91|74°F30% Chance of Rain
Day
91°FMostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 90F. Dew point will be around 72F with an average humidity of 65%. Winds will be 4 mph from the SW.
Night
74°FClear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 74F. Dew point will be around 69F with an average humidity of 70%. Winds will be 2 mph from the S.
