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O'Fallon, MO

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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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Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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12 PM

73°

RealFeel® 75°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

63%

Thunderstorms

RealFeel Shade™73°

WindWSW 7 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts8 mph

Humidity87%

Indoor Humidity87% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Rain0.01 in

Visibility10 mi

Cloud Ceiling1700 ft

1 PM

74°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

70%

Thunderstorms

RealFeel Shade™74°

WindWSW 7 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts9 mph

Humidity90%

Indoor Humidity90% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.03 in

Visibility10 mi

Cloud Ceiling2000 ft

2 PM

74°

RealFeel® 80°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

49%

Cloudy

RealFeel Shade™77°

WindWSW 7 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts8 mph

Humidity89%

Indoor Humidity89% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling3600 ft

3 PM

74°

RealFeel® 75°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

61%

Thunderstorms

RealFeel Shade™73°

WindW 7 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts8 mph

Humidity88%

Indoor Humidity88% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Rain0.10 in

Visibility4 mi

Cloud Ceiling5300 ft

4 PM

74°

RealFeel® 79°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

49%

Cloudy

RealFeel Shade™77°

WindW 7 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts7 mph

Humidity86%

Indoor Humidity86% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling6900 ft

5 PM

75°

RealFeel® 79°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

49%

Cloudy

RealFeel Shade™79°

WindW 6 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts7 mph

Humidity85%

Indoor Humidity85% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling11500 ft

6 PM

74°

RealFeel® 74°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

54%

Thunderstorms

RealFeel Shade™74°

WindW 6 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts6 mph

Humidity87%

Indoor Humidity87% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover94%

Rain0.10 in

Visibility4 mi

Cloud Ceiling16200 ft

7 PM

72°

RealFeel® 76°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

49%

Cloudy

RealFeel Shade™76°

WindE 5 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts6 mph

Humidity93%

Indoor Humidity93% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling20800 ft

8 PM

70°

RealFeel® 73°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

4%

Cloudy

WindNNE 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity98%

Indoor Humidity95% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1000 ft

9 PM

67°

RealFeel® 69°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

4%

Cloudy

WindNE 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity100%

Indoor Humidity98% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling1000 ft

10 PM

67°

RealFeel® 68°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

4%

Cloudy

WindENE 5 mph

Air QualityPoor

Wind Gusts5 mph

Humidity100%

Indoor Humidity96% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling1000 ft

11 PM

67°

RealFeel® 69°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

4%

Cloudy

WindENE 5 mph

Air QualityPoor

Wind Gusts5 mph

Humidity100%

Indoor Humidity97% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling1000 ft

Hourly Weather Forecast for O'Fallon

AccuWeather's hourly forecast for O'Fallon provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 73° with a RealFeel® of 75°, thunderstorms with a 63% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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