O Fallon, MO Weather Forecast and Current Conditions (63366)
Feels Like 92°F
Current Weather
Feels Like 92°F
Forecast at a Glance
This Date in Weather History
1965 - A storm produced a band of heavy snow across parts of Wyoming. Totals of 23 inches at Rawlins and 20.7 inches at Lander easily surpassed previous snowfall record totals for so early in the season.
More on this and other weather history
O Fallon 7 Day Weather Forecast Details
Wednesday Sep 17
Day: Sunny, with a high near 92. Northeast wind around 5 mph.
Night: Mostly clear, with a low around 62. East wind around 5 mph.
Thursday Sep 18
Day: Sunny, with a high near 93. East wind around 3 mph.
Night: A chance of rain showers after 1am. Mostly cloudy, with a low around 65. South wind around 2 mph. Chance of precipitation is 30%.
Friday Sep 19
Day: A chance of rain showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. West wind around 5 mph. Chance of precipitation is 50%.
Night: A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Saturday Sep 20
Day: A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Sunday Sep 21
Day: A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Night: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Monday Sep 22
Day: A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Night: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Tuesday Sep 23
Day: A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Sun & Moon Monthly
Sunrise 6:47 AM
Sunset 7:09 PM
Last Light 7:36 PM
Moonset 5:21 PM
Contiguous United States Extremes
Tue's High Temperature
112 at 16 Miles Southwest Of Tecopa, CA
Wed's Low Temperature
22 at Peter Sinks, UT
Weather Folklore
Look for foam on the river before a rain.
Current subscribers - login to your ClearSky account