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Weekend storm to swipe East Coast with snow as far south as Georgia. See the forecast. Chevron right

O'Fallon, MO

21°F
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O'Fallon, MO Weather
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WinterCast

Snow

Fri, 1/16, 7:00 PM - Sat, 1/17, 7:00 AM

Snow

7 AM

21°
RealFeel® 0°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 42%
Chevron down
Flurries

WindWNW 20 mph

Air QualityExcellent

Wind Gusts24 mph

Humidity54%

Indoor Humidity21% (Very Dry)

Dew Point7° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Snowtrace

Visibility10 mi

Cloud Ceiling4700 ft

8 AM

21°
RealFeel® 1°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 39%
Chevron down
Cloudy

RealFeel Shade™1°

WindWNW 20 mph

Air QualityExcellent

Max UV Index0.2 (Low)

Wind Gusts23 mph

Humidity47%

Indoor Humidity18% (Extremely Dry)

Dew Point4° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling4700 ft

9 AM

21°
RealFeel® 2°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 42%
Chevron down
Cloudy

RealFeel Shade™2°

WindWNW 20 mph

Air QualityExcellent

Max UV Index0.5 (Low)

Wind Gusts27 mph

Humidity45%

Indoor Humidity18% (Extremely Dry)

Dew Point3° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling4600 ft

10 AM

22°
RealFeel® 1°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 51%
Chevron down
Flurries

RealFeel Shade™1°

WindWNW 20 mph

Air QualityExcellent

Max UV Index0.6 (Low)

Wind Gusts30 mph

Humidity42%

Indoor Humidity17% (Extremely Dry)

Dew Point2° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Snowtrace

Visibility10 mi

Cloud Ceiling5400 ft

11 AM

22°
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 44%
Chevron down
Mostly cloudy

RealFeel Shade™3°

WindWNW 21 mph

Air QualityExcellent

Max UV Index0.9 (Low)

Wind Gusts32 mph

Humidity41%

Indoor Humidity17% (Extremely Dry)

Dew Point2° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling6200 ft

12 PM

22°
RealFeel® 2°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 36%
Chevron down
Cloudy

RealFeel Shade™2°

WindWNW 22 mph

Air QualityExcellent

Max UV Index0.9 (Low)

Wind Gusts36 mph

Humidity41%

Indoor Humidity17% (Extremely Dry)

Dew Point2° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling7100 ft

1 PM

22°
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy

RealFeel Shade™3°

WindWNW 20 mph

Air QualityExcellent

Max UV Index0.9 (Low)

Wind Gusts35 mph

Humidity40%

Indoor Humidity17% (Extremely Dry)

Dew Point1° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling6300 ft

2 PM

22°
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy

RealFeel Shade™3°

WindWNW 21 mph

Air QualityExcellent

Max UV Index0.7 (Low)

Wind Gusts36 mph

Humidity38%

Indoor Humidity16% (Extremely Dry)

Dew Point0° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling5500 ft

3 PM

21°
RealFeel® 1°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™1°

WindWNW 21 mph

Air QualityExcellent

Max UV Index0.5 (Low)

Wind Gusts37 mph

Humidity39%

Indoor Humidity16% (Extremely Dry)

Dew Point0° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling4700 ft

4 PM

21°
RealFeel® 0°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 55%
Chevron down
Flurries

RealFeel Shade™0°

WindWNW 21 mph

Air QualityExcellent

Max UV Index0.2 (Low)

Wind Gusts35 mph

Humidity39%

Indoor Humidity16% (Extremely Dry)

Dew Point0° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover92%

Snowtrace

Visibility10 mi

Cloud Ceiling5200 ft

5 PM

20°
RealFeel® -1°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 55%
Chevron down
Flurries

RealFeel Shade™-1°

WindWNW 18 mph

Air QualityExcellent

Max UV Index0.0 (Low)

Wind Gusts32 mph

Humidity41%

Indoor Humidity16% (Extremely Dry)

Dew Point0° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Snowtrace

Visibility10 mi

Cloud Ceiling5700 ft

6 PM

19°
RealFeel® 0°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

WindWNW 17 mph

Air QualityExcellent

Wind Gusts29 mph

Humidity44%

Indoor Humidity16% (Extremely Dry)

Dew Point0° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling6200 ft

7 PM

18°
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 4%
Chevron down
Partly cloudy

WindWNW 13 mph

Air QualityExcellent

Wind Gusts21 mph

Humidity46%

Indoor Humidity16% (Extremely Dry)

Dew Point0° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

18°
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 4%
Chevron down
Partly cloudy

WindWNW 13 mph

Air QualityExcellent

Wind Gusts21 mph

Humidity48%

Indoor Humidity17% (Extremely Dry)

Dew Point1° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

18°
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 4%
Chevron down
Partly cloudy

WindWNW 12 mph

Air QualityExcellent

Wind Gusts18 mph

Humidity49%

Indoor Humidity17% (Extremely Dry)

Dew Point1° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

17°
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 4%
Chevron down
Partly cloudy

WindWNW 12 mph

Air QualityExcellent

Wind Gusts16 mph

Humidity50%

Indoor Humidity17% (Extremely Dry)

Dew Point1° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

17°
RealFeel® 4°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 4%
Chevron down
Partly cloudy

WindWNW 10 mph

Air QualityExcellent

Wind Gusts15 mph

Humidity50%

Indoor Humidity17% (Extremely Dry)

Dew Point1° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover42%

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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