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

Weather Conditions

64°
L/RAIN

Updated: 9:04 AM

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7-day Forecast for O Fallon

  • Daytime
  • Nighttime
04/21
Mon
75°
Mostly cloudy with a couple of showers and a thunderstorm
Feels Like: 77°
Winds: 6mph WSW
49° Feels like: 44°
Winds: 8mph NW
04/22
Tue
69°
Partly sunny and less humid
Feels Like: 72°
Winds: 10mph N
41° Feels like: 42°
Winds: 4mph ENE
04/23
Wed
71°
Mostly sunny
Feels Like: 73°
Winds: 9mph SSE
51° Feels like: 47°
Winds: 11mph S
04/24
Thu
75°
Mainly cloudy with a couple of showers and a thunderstorm
Feels Like: 73°
Winds: 12mph SW
49° Feels like: 46°
Winds: 8mph WSW
04/25
Fri
74°
Partly sunny
Feels Like: 77°
Winds: 11mph NW
44° Feels like: 39°
Winds: 9mph N
04/26
Sat
62°
Mostly sunny and cooler but pleasant
Feels Like: 66°
Winds: 11mph NNE
39° Feels like: 32°
Winds: 9mph NE
04/27
Sun
62°
Mostly cloudy with a shower or thunderstorm around
Feels Like: 63°
Winds: 11mph ENE
40° Feels like: 31°
Winds: 10mph NE

24 Hour Forecast for O'Fallon

  • 11am
  • 12pm
  • 1pm
  • 2pm
  • 3pm
  • 4pm
  • Conditions
  • Temperature
  • 69°
  • 69°
  • 71°
  • 75°
  • 69°
  • 71°
  • Cloud Cover
  • 96%
  • 96%
  • 91%
  • 90%
  • 89%
  • 90%
  • Feels Like
  • 72°
  • 72°
  • 74°
  • 77°
  • 69°
  • 72°
  • Dew Point
  • 56°
  • 55°
  • 56°
  • 57°
  • 63°
  • 61°
  • Humidity
  • 63%
  • 60%
  • 58%
  • 54%
  • 80%
  • 69%
  • Wind Direction
  • WSW
  • SW
  • SW
  • SW
  • SW
  • SW
  • Wind Speed
  • 6
  • 7
  • 7
  • 7
  • 7
  • 8
  • Precipitation
  • 0.0
  • 0.0
  • 0.0
  • 0.09
  • 0.0
  • 0.0