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O'Fallon, MO

66°F
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O'Fallon

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O'Fallon, MO Weather
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April 22 - May 6

Wed 4/22

75° /58°
0%
Mainly clear

RealFeel®55°

Cloud Cover8%

WindSSW 7 mph

Wind Gusts8 mph

Thu 4/23

84° /64°
4%
Partly sunny, breezy and very warm

RealFeel®85°

RealFeel Shade™80°

Max UV Index9.0 (Very High)

WindS 14 mph

Fri 4/24

76° /48°
88%
Cloudy and not as warm with a couple of showers and a thunderstorm

RealFeel®74°

RealFeel Shade™73°

Max UV Index3.0 (Moderate)

WindWNW 10 mph

Sat 4/25

77° /56°
5%
Comfortable with intervals of clouds and sun

RealFeel®82°

RealFeel Shade™75°

Max UV Index9.0 (Very High)

WindNNE 7 mph

Sun 4/26

75° /62°
72%
Cloudy with a couple of showers

RealFeel®74°

RealFeel Shade™72°

Max UV Index2.0 (Low)

WindSE 9 mph

Mon 4/27

80° /49°
88%
Mostly cloudy and breezy with a couple of showers and a thunderstorm

RealFeel®78°

RealFeel Shade™76°

Max UV Index2.0 (Low)

WindSW 15 mph

Tue 4/28

68° /49°
23%
Mainly cloudy and less humid

RealFeel®74°

RealFeel Shade™66°

Max UV Index4.0 (Moderate)

WindNNW 5 mph

Wed 4/29

67° /53°
76%
Rain

RealFeel®66°

RealFeel Shade™64°

Max UV Index3.0 (Moderate)

WindNE 9 mph

Thu 4/30

64° /48°
16%
Cloudy

RealFeel®65°

RealFeel Shade™64°

Max UV Index3.0 (Moderate)

WindNNE 8 mph

Fri 5/1

58° /40°
2%
Cloudy

RealFeel®57°

RealFeel Shade™56°

Max UV Index3.0 (Moderate)

WindNNW 8 mph

Sat 5/2

67° /47°
0%
Partly sunny

RealFeel®77°

RealFeel Shade™66°

Max UV Index9.0 (Very High)

WindW 4 mph

Sun 5/3

66° /46°
57%
A passing shower in the morning; otherwise, clouds yielding to sun

RealFeel®68°

RealFeel Shade™62°

Max UV Index9.0 (Very High)

WindW 13 mph

Mon 5/4

66° /51°
0%
Sun through high clouds

RealFeel®67°

RealFeel Shade™66°

Max UV Index5.0 (Moderate)

WindNNW 7 mph

Tue 5/5

73° /50°
25%
Times of sun and clouds

RealFeel®73°

RealFeel Shade™72°

Max UV Index5.0 (Moderate)

WindNW 7 mph

Wed 5/6

66° /51°
67%
Rain

RealFeel®63°

RealFeel Shade™63°

Max UV Index2.0 (Low)

WindENE 8 mph

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World North America United States Missouri O'Fallon

Weather Near O'Fallon:

  • St. Charles, MO
  • St. Louis, MO
  • St. Peters, MO
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