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O'Fallon, MO

54°F
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O'Fallon

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O'Fallon, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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October 9 - October 23

Fri 10/9

89° /53°
1%
Very warm with plenty of sun

RealFeel®90°

RealFeel Shade™86°

Max UV Index4.0 (Moderate)

WindS 8 mph

Sat 10/10

79° /54°
1%
Not as warm with times of clouds and sun

RealFeel®82°

RealFeel Shade™76°

Max UV Index4.0 (Moderate)

WindSE 7 mph

Sun 10/11

85° /58°
9%
Very warm with some clouds, then sunshine

RealFeel®86°

RealFeel Shade™83°

Max UV Index4.0 (Moderate)

WindWNW 6 mph

Mon 10/12

94° /66°
1%
Sunny and toasty conditions; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®94°

RealFeel Shade™91°

Max UV Index4.0 (Moderate)

WindSW 10 mph

Tue 10/13

86° /61°
20%
Partly sunny and very warm

RealFeel®88°

RealFeel Shade™84°

Max UV Index4.0 (Moderate)

WindNW 8 mph

Wed 10/14

75° /64°
91%
Not as warm with periods of rain

RealFeel®74°

RealFeel Shade™74°

Max UV Index2.0 (Low)

WindESE 7 mph

Total Hours of Precipitation3

Total Hours of Rain3

Thu 10/15

78° /56°
65%
Partly sunny with a couple of thunderstorms in the afternoon

RealFeel®78°

RealFeel Shade™74°

Max UV Index4.0 (Moderate)

WindSW 10 mph

Total Hours of Precipitation1

Total Hours of Rain1

Fri 10/16

65° /43°
3%
Cooler with clouds rolling in

RealFeel®62°

RealFeel Shade™62°

Max UV Index4.0 (Moderate)

WindWNW 14 mph

Sat 10/17

59° /45°
2%
Intervals of bright sunshine

RealFeel®60°

RealFeel Shade™57°

Max UV Index2.0 (Low)

WindNNW 9 mph

Sun 10/18

61° /43°
3%
Peeks of sunshine

RealFeel®64°

RealFeel Shade™60°

Max UV Index4.0 (Moderate)

WindN 5 mph

Mon 10/19

64° /45°
0%
Partly sunny

RealFeel®66°

RealFeel Shade™63°

Max UV Index4.0 (Moderate)

WindNNW 7 mph

Tue 10/20

62° /46°
1%
Sunny to partly cloudy

RealFeel®68°

RealFeel Shade™63°

Max UV Index4.0 (Moderate)

WindENE 4 mph

Wed 10/21

67° /48°
0%
Sunny

RealFeel®72°

RealFeel Shade™66°

Max UV Index4.0 (Moderate)

WindSSW 2 mph

Thu 10/22

66° /44°
5%
Plenty of sunshine

RealFeel®70°

RealFeel Shade™65°

Max UV Index4.0 (Moderate)

WindSSW 5 mph

Fri 10/23

59° /40°
20%
Plenty of sunshine

RealFeel®63°

RealFeel Shade™58°

Max UV Index4.0 (Moderate)

WindSSE 5 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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