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Polar vortex to unleash 3 blasts of Arctic air into mid-December. See the forecast.

Next winter storm hinges on upcoming Arctic blast. Get the details.

St. Louis, MO

27°F

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3 PM

30°

RealFeel® 27°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

0%

Mostly cloudy

RealFeel Shade™27°

WindW 6 mph

Air QualityPoor

Max UV Index0.5 (Low)

Wind Gusts10 mph

Humidity74%

Indoor Humidity33% (Dry)

Dew Point23° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover83%

Visibility8 mi

Cloud Ceiling2500 ft

4 PM

29°

RealFeel® 25°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

0%

Mostly cloudy

RealFeel Shade™25°

WindWSW 6 mph

Air QualityPoor

Max UV Index0.2 (Low)

Wind Gusts7 mph

Humidity78%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover76%

Visibility8 mi

Cloud Ceiling2500 ft

5 PM

26°

RealFeel® 23°

Very Cold

RealFeel Guide

Very Cold

10° to 24°

Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.

0%

Mostly cloudy

WindSSE 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity82%

Indoor Humidity32% (Dry)

Dew Point21° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility8 mi

Cloud Ceiling2500 ft

6 PM

24°

RealFeel® 20°

Very Cold

RealFeel Guide

Very Cold

10° to 24°

Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.

0%

Mostly cloudy

WindSE 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity88%

Indoor Humidity31% (Dry)

Dew Point21° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility8 mi

Cloud Ceiling2500 ft

7 PM

23°

RealFeel® 18°

Very Cold

RealFeel Guide

Very Cold

10° to 24°

Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.

0%

Mostly clear

WindSSE 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity87%

Indoor Humidity30% (Dry)

Dew Point20° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

20°

RealFeel® 15°

Very Cold

RealFeel Guide

Very Cold

10° to 24°

Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.

0%

Mostly clear

WindSSE 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity95%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

21°

RealFeel® 14°

Very Cold

RealFeel Guide

Very Cold

10° to 24°

Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.

0%

Mostly clear

WindSSE 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity93%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

21°

RealFeel® 15°

Very Cold

RealFeel Guide

Very Cold

10° to 24°

Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.

0%

Mostly clear

WindSSE 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity91%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

22°

RealFeel® 15°

Very Cold

RealFeel Guide

Very Cold

10° to 24°

Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.

0%

Mostly clear

WindSSE 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity90%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover27%

Visibility10 mi

Cloud Ceiling30000 ft

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