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O'Fallon, MO

70°F
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O'Fallon

Missouri

70°
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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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5 AM

69°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 54%
Chevron down
Showers

WindWSW 10 mph

Air QualityExcellent

Wind Gusts14 mph

Humidity84%

Indoor Humidity84% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover96%

Rain0.01 in

Visibility10 mi

Cloud Ceiling1000 ft

6 AM

69°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 48%
Chevron down
Showers

WindWSW 12 mph

Air QualityExcellent

Wind Gusts16 mph

Humidity87%

Indoor Humidity87% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling1000 ft

7 AM

68°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™66°

WindW 13 mph

Air QualityExcellent

Max UV Index0.2 (Low)

Wind Gusts16 mph

Humidity89%

Indoor Humidity89% (Humid)

Dew Point65° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1000 ft

8 AM

68°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

RealFeel Shade™65°

WindW 15 mph

Air QualityExcellent

Max UV Index0.5 (Low)

Wind Gusts20 mph

Humidity90%

Indoor Humidity89% (Humid)

Dew Point65° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling900 ft

9 AM

68°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

RealFeel Shade™66°

WindW 15 mph

Air QualityExcellent

Max UV Index0.8 (Low)

Wind Gusts20 mph

Humidity89%

Indoor Humidity89% (Humid)

Dew Point65° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling700 ft

10 AM

69°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 37%
Chevron down
Cloudy

RealFeel Shade™66°

WindW 15 mph

Air QualityExcellent

Max UV Index1.2 (Low)

Wind Gusts21 mph

Humidity89%

Indoor Humidity89% (Humid)

Dew Point65° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling500 ft

11 AM

69°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™67°

WindW 15 mph

Air QualityExcellent

Max UV Index1.7 (Low)

Wind Gusts23 mph

Humidity87%

Indoor Humidity87% (Humid)

Dew Point65° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling600 ft

12 PM

70°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Showers

RealFeel Shade™66°

WindW 15 mph

Air QualityExcellent

Max UV Index2.1 (Low)

Wind Gusts27 mph

Humidity87%

Indoor Humidity87% (Humid)

Dew Point66° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Rain0.02 in

Visibility6 mi

Cloud Ceiling700 ft

1 PM

71°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™69°

WindW 15 mph

Air QualityExcellent

Max UV Index2.6 (Moderate)

Wind Gusts27 mph

Humidity86%

Indoor Humidity86% (Humid)

Dew Point66° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling700 ft

2 PM

71°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™69°

WindWNW 15 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts25 mph

Humidity86%

Indoor Humidity86% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling800 ft

3 PM

72°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 57%
Chevron down
Thunderstorms

RealFeel Shade™67°

WindWNW 15 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts23 mph

Humidity86%

Indoor Humidity86% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Rain0.08 in

Visibility5 mi

Cloud Ceiling1000 ft

4 PM

73°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

RealFeel Shade™70°

WindNW 15 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts22 mph

Humidity83%

Indoor Humidity83% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Rain0.01 in

Visibility10 mi

Cloud Ceiling1100 ft

5 PM

72°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 40%
Chevron down
Mostly cloudy

RealFeel Shade™71°

WindNW 15 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts27 mph

Humidity85%

Indoor Humidity85% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling1100 ft

6 PM

72°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy

RealFeel Shade™71°

WindNW 16 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts30 mph

Humidity85%

Indoor Humidity85% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling1100 ft

7 PM

72°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™70°

WindNW 16 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts29 mph

Humidity84%

Indoor Humidity84% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling1100 ft

8 PM

71°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Partly sunny w/ showers

RealFeel Shade™69°

WindNW 10 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts20 mph

Humidity85%

Indoor Humidity85% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Rain0.01 in

Visibility6 mi

Cloud Ceiling30000 ft

9 PM

71°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Partly cloudy

WindNNW 10 mph

Air QualityFair

Wind Gusts21 mph

Humidity86%

Indoor Humidity86% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

70°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 43%
Chevron down
Partly cloudy

WindNNW 10 mph

Air QualityFair

Wind Gusts21 mph

Humidity87%

Indoor Humidity87% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

70°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 43%
Chevron down
Partly cloudy

WindNNW 10 mph

Air QualityFair

Wind Gusts21 mph

Humidity87%

Indoor Humidity87% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 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 69° with a RealFeel® of 65°, showers with a 54% 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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Weather Near O'Fallon:

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