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Death toll in Texas reaches 129 as flash flood threat expands. Chevron right
Increasing flash flood threat underway in Texas. Read the forecast Chevron right

O'Fallon, MO

77°F
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O'Fallon

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

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Today

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8 AM

74°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 17%
Chevron down
Cloudy

RealFeel Shade™81°

WindSSE 2 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts2 mph

Humidity93%

Indoor Humidity93% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling9800 ft

9 AM

75°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 17%
Chevron down
Cloudy

RealFeel Shade™79°

WindSSW 5 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts6 mph

Humidity86%

Indoor Humidity86% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling5500 ft

10 AM

76°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 22%
Chevron down
Cloudy

RealFeel Shade™81°

WindSW 5 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts6 mph

Humidity84%

Indoor Humidity84% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling3700 ft

11 AM

77°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™81°

WindW 5 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts6 mph

Humidity83%

Indoor Humidity83% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling3400 ft

12 PM

77°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 64%
Chevron down
Thunderstorms

RealFeel Shade™79°

WindNNE 6 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts7 mph

Humidity82%

Indoor Humidity82% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Rain0.09 in

Visibility5 mi

Cloud Ceiling2000 ft

1 PM

78°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 64%
Chevron down
Thunderstorms

RealFeel Shade™80°

WindNNE 6 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts7 mph

Humidity79%

Indoor Humidity79% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Rain0.09 in

Visibility5 mi

Cloud Ceiling3000 ft

2 PM

78°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™82°

WindNNE 6 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts7 mph

Humidity81%

Indoor Humidity81% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2600 ft

3 PM

77°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

RealFeel Shade™81°

WindN 6 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts7 mph

Humidity84%

Indoor Humidity84% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling2300 ft

4 PM

76°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™80°

WindN 6 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts6 mph

Humidity87%

Indoor Humidity87% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1900 ft

5 PM

76°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 68%
Chevron down
Thunderstorms

RealFeel Shade™77°

WindN 5 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts6 mph

Humidity85%

Indoor Humidity85% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Rain0.33 in

Visibility2 mi

Cloud Ceiling2000 ft

6 PM

75°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™80°

WindNNW 6 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts6 mph

Humidity86%

Indoor Humidity86% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling5300 ft

7 PM

75°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 68%
Chevron down
Thunderstorms

RealFeel Shade™75°

WindNNW 6 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts6 mph

Humidity86%

Indoor Humidity86% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover94%

Rain0.33 in

Visibility2 mi

Cloud Ceiling2000 ft

8 PM

74°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 44%
Chevron down
Mostly sunny

RealFeel Shade™78°

WindNW 5 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts6 mph

Humidity89%

Indoor Humidity89% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

74°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Partly cloudy w/ t-storms

WindWNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity89%

Indoor Humidity89% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Rain0.04 in

Visibility9 mi

Cloud Ceiling30000 ft

10 PM

72°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Mostly clear

WindWNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity93%

Indoor Humidity93% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

71°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 32%
Chevron down
Mostly clear

WindW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity95%

Indoor Humidity95% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

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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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