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O'Fallon, MO 63366   Weather, Extended Forecast and Hour-by-Hour Forecast

Weather Conditions

56°
M/CLEAR

Updated: 9:44 PM

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7-day Forecast for O Fallon

  • Daytime
  • Nighttime
04/17
Thu
63°
Sun followed by clouds
Feels Like: 68°
Winds: 6mph WSW
40° Feels like: 39°
Winds: 3mph NE
04/18
Fri
68°
Intervals of clouds and sunshine
Feels Like: 77°
Winds: 4mph ENE
46° Feels like: 46°
Winds: 4mph E
04/19
Sat
75°
Sunshine and patchy clouds
Feels Like: 79°
Winds: 8mph SE
51° Feels like: 47°
Winds: 9mph SSE
04/20
Sun
76°
Mostly cloudy with a shower or thunderstorm possible
Feels Like: 78°
Winds: 8mph S
56° Feels like: 54°
Winds: 6mph S
04/21
Mon
69°
Not as warm with a couple of thunderstorms; cloudy in the morning, then intervals of clouds and sunshine in the afternoon
Feels Like: 70°
Winds: 8mph W
61° Feels like: 58°
Winds: 6mph NNW
04/22
Tue
71°
Sunny to partly cloudy
Feels Like: 78°
Winds: 5mph NE
58° Feels like: 56°
Winds: 7mph E
04/23
Wed
85°
Partly sunny and pleasant
Feels Like: 85°
Winds: 10mph SSE
54° Feels like: 52°
Winds: 12mph S

24 Hour Forecast for O'Fallon

  • 9pm
  • 10pm
  • 11pm
  • 12am
  • 1am
  • 2am
  • Conditions
  • Temperature
  • 52°
  • 49°
  • 46°
  • 45°
  • 44°
  • 42°
  • Cloud Cover
  • 87%
  • 89%
  • 93%
  • 97%
  • 99%
  • 99%
  • Feels Like
  • 52°
  • 49°
  • 46°
  • 47°
  • 43°
  • 44°
  • Dew Point
  • 42°
  • 41°
  • 39°
  • 40°
  • 39°
  • 37°
  • Humidity
  • 68%
  • 74%
  • 77%
  • 80%
  • 81%
  • 82%
  • Wind Direction
  • N
  • N
  • N
  • N
  • NNE
  • N
  • Wind Speed
  • 4
  • 3
  • 3
  • 3
  • 2
  • 2
  • Precipitation
  • 0.0
  • 0.0
  • 0.0
  • 0.04
  • 0.0
  • 0.0