Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
A major nor'easter and blizzard threatens to shut down travel. See the snow forecast. Chevron right
California expecting new snowstorm after measuring 100+ inches. Get the forecast. Chevron right

St. Clair, MO

23°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Clair

Missouri

23°
No results found.
Try searching for a city, zip code or point of interest.
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
St. Clair, MO Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Sunday, February 22

Current Weather

9:06 AM

23°F
Mostly sunny
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.
LEARN MORE
RealFeel Shade™ 11°
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.
LEARN MORE
RealFeel®
14°
RealFeel Shade™
11°
Max UV Index
1.3 (Low)
Wind
NW 11 mph
Wind Gusts
19 mph
Humidity
64%
Indoor Humidity
26% (Very Dry)
Dew Point
12° F
Pressure
↑ 30.48 in
Cloud Cover
11%
Visibility
18 mi
Cloud Ceiling
40000 ft

Day

2/22
34°Hi
RealFeel® 22°
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.
LEARN MORE
RealFeel Shade™ 19°
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.
LEARN MORE
Windy and colder with plenty of sunshine

Max UV Index4.0 (Moderate)

AccuLumen Brightness Index™9 (Very Bright)

WindNW 16 mph

Wind Gusts41 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover5%

Morning

Afternoon

Night

2/22
13°Lo
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
Breezy this evening; otherwise, clear and cold

WindNNW 13 mph

Wind Gusts29 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover5%

Evening

Overnight

Sun & Moon

11 hrs 04 mins
Rise 6:46 AM
Set 5:50 PM
Waxing Crescent
Rise 9:13 AM
Set 12:01 AM

Temperature History

2/22
High
Low
Forecast
34°
13°
Average
49°
28°
Last Year
41°
10°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Dangerous nor'easter, blizzard to rage from Delaware, NYC to Boston

58 minutes ago

Severe Weather

Likely tornadoes destroy homes, wrap mobile homes around trees

1 day ago

Winter Weather

Atmospheric river to blast West Coast with more flooding, heavy snow

2 hours ago

Weather Forecasts

From 80s F to freezing: Florida faces cold blast, growing fire danger

2 hours ago

Weather Forecasts

El Nino is brewing: Here’s what it means for US weather in 2026

1 day ago

 More Stories

Featured Stories

Winter Weather

Search teams working to recover bodies of skiers killed in avalanche

2 days ago

Weather Forecasts

Wildfire season to ramp up early as drought covers over 40% of the US

3 days ago

Weather News

Bald eagle rescued from floating ice on New York's Hudson River

2 days ago

Climate

75% of global coffee supply faces rising extreme heat, analysis says

2 days ago

Travel

The island with an air-conditioned ‘forest’ to cope with summers

2 days ago
World North America United States Missouri St. Clair

Weather Near St. Clair:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...