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O'Fallon, IL 62269   Weather, Extended Forecast and Hour-by-Hour Forecast

Weather Conditions

55°
M/SUNNY

Updated: 5:19 PM

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7-day Forecast for O Fallon

  • Daytime
  • Nighttime
04/16
Wed
57°
Partly sunny, breezy and warmer
Feels Like: 54°
Winds: 15mph SSE
40° Feels like: 39°
Winds: 7mph S
04/17
Thu
61°
More clouds than sun
Feels Like: 67°
Winds: 6mph S
44° Feels like: 43°
Winds: 4mph SSW
04/18
Fri
62°
Some sun returning, a shower possible
Feels Like: 69°
Winds: 6mph NNW
45° Feels like: 42°
Winds: 5mph ENE
04/19
Sat
65°
Partly sunny
Feels Like: 69°
Winds: 8mph ESE
49° Feels like: 45°
Winds: 8mph SE
04/20
Sun
70°
Mostly cloudy with a thunderstorm possible
Feels Like: 72°
Winds: 10mph S
55° Feels like: 54°
Winds: 6mph WSW
04/21
Mon
69°
Cloudy with showers
Feels Like: 70°
Winds: 8mph NNW
45° Feels like: 45°
Winds: 5mph NNE
04/22
Tue
66°
Pleasant with plenty of sunshine
Feels Like: 72°
Winds: 6mph ENE
49° Feels like: 46°
Winds: 6mph SE

24 Hour Forecast for O'Fallon

  • 7pm
  • 8pm
  • 9pm
  • 10pm
  • 11pm
  • 12am
  • Conditions
  • Temperature
  • 54°
  • 51°
  • 50°
  • 47°
  • 45°
  • 45°
  • Cloud Cover
  • 25%
  • 42%
  • 39%
  • 41%
  • 44%
  • 45%
  • Feels Like
  • 48°
  • 45°
  • 44°
  • 43°
  • 41°
  • 42°
  • Dew Point
  • 30°
  • 31°
  • 32°
  • 32°
  • 32°
  • 33°
  • Humidity
  • 40%
  • 45%
  • 51%
  • 55%
  • 60%
  • 63%
  • Wind Direction
  • SE
  • SE
  • SE
  • SSE
  • SSE
  • S
  • Wind Speed
  • 13
  • 11
  • 9
  • 8
  • 7
  • 6
  • Precipitation
  • 0.0
  • 0.0
  • 0.0
  • 0.0
  • 0.0
  • 0.0