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

Weather Conditions

65°
CLOUDY

Updated: 9:23 AM

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7-day Forecast for O Fallon

  • Daytime
  • Nighttime
05/20
Mon 		88°
A few strong t-storms this afternoon; otherwise, warm with a strong t-storm this morning, breezy and humid with clouds and sun 		Feels Like: 93°
Winds: 12mph S 		71° Feels like: 67°
Winds: 8mph S
05/21
Tue 		84°
Watch for strong thunderstorms; warm and humid with variable cloudiness 		Feels Like: 90°
Winds: 10mph SSW 		62° Feels like: 62°
Winds: 6mph SSW
05/22
Wed 		80°
Times of clouds and sun with a shower or thunderstorm around 		Feels Like: 83°
Winds: 10mph W 		55° Feels like: 52°
Winds: 7mph WNW
05/23
Thu 		71°
Partly sunny and cooler 		Feels Like: 74°
Winds: 12mph NNW 		50° Feels like: 46°
Winds: 8mph NNE
05/24
Fri 		73°
Partly sunny and beautiful 		Feels Like: 79°
Winds: 7mph ENE 		50° Feels like: 49°
Winds: 6mph E
05/25
Sat 		78°
Beautiful with intervals of clouds and sunshine 		Feels Like: 84°
Winds: 6mph ESE 		56° Feels like: 54°
Winds: 6mph SSE
05/26
Sun 		82°
A blend of sun and clouds 		Feels Like: 87°
Winds: 8mph S 		61° Feels like: 61°
Winds: 9mph S

24 Hour Forecast for O'Fallon

Prev 6 Hours | Next 6 Hours
  • 9am
  • 10am
  • 11am
  • 12pm
  • 1pm
  • 2pm
  • Conditions
  • Temperature
  • 74°
  • 78°
  • 83°
  • 85°
  • 87°
  • 88°
  • Cloud Cover
  • 94%
  • 79%
  • 72%
  • 71%
  • 65%
  • 56%
  • Feels Like
  • 72°
  • 80°
  • 87°
  • 90°
  • 91°
  • 93°
  • Dew Point
  • 64°
  • 66°
  • 69°
  • 70°
  • 70°
  • 70°
  • Humidity
  • 72%
  • 68%
  • 62%
  • 60%
  • 57%
  • 56%
  • Wind Direction
  • SSE
  • SSE
  • SSE
  • S
  • S
  • S
  • Wind Speed
  • 6
  • 10
  • 12
  • 14
  • 16
  • 16
  • Precipitation
  • 0.0
  • 0.0
  • 0.0
  • 0.0
  • 0.0
  • 0.0

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