Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Severe weather season begins soon. Here's where tornadoes could strike this spring. Chevron right

St. Clair, MO

36°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Clair

Missouri

36°
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 WinterCast Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Friday, February 27

Current Weather

2:53 AM

36°F
Clear
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel®
37°
Wind
W 2 mph
Wind Gusts
4 mph
Humidity
84%
Indoor Humidity
40% (Slightly Dry)
Dew Point
31° F
Pressure
↔ 29.95 in
Cloud Cover
2%
Visibility
14 mi
Cloud Ceiling
40000 ft

Day

2/27
76°Hi
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Warmer with plenty of sun
alerts

Red Flag Warning

12:00 PM Friday - 6:00 PM Friday

Max UV Index4.0 (Moderate)

AccuLumen Brightness Index™10 (Very Bright)

WindSW 9 mph

Wind Gusts29 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover0%

Morning

Afternoon

Night

2/27
37°Lo
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
Clear

WindNW 6 mph

Wind Gusts12 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover5%

Evening

Overnight

Sun & Moon

11 hrs 16 mins
Rise 6:39 AM
Set 5:55 PM
Waxing Gibbous
Rise 1:47 PM
Set 5:07 AM

Temperature History

2/27
High
Low
Forecast
76°
37°
Average
50°
29°
Last Year
59°
31°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Arctic surge to fuel early-week winter storm for Midwest, Northeast

12 hours ago

Hurricane

Hurricane Melissa upgraded in report to 190 mph winds

13 hours ago

Severe Weather

Tornado season: What forecasters expect for severe weather in 2026

9 hours ago

Severe Weather

March springlike surge to foster severe storms from Texas to Michigan

9 hours ago

Weather News

Explosive Florida wildfire shuts down I-75 amid extreme drought

17 hours ago

 More Stories

Featured Stories

Weather News

After heartbreaking loss, famous eagle Jackie lays new egg

17 hours ago

Astronomy

March adds daylight fast, a change bigger than most people realize

1 day ago

Weather News

A 4-month-old bird flew over 8,000 miles nonstop across the Pacific

1 day ago

Astronomy

Webb reveals Uranus’s upper atmosphere in unprecedented detail

1 day ago

Astronomy

6 planets, moon will align on Saturday evening

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

...

...

...