Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Flash flood risk to focus on parts of central US. Get the forecast Chevron right

Frontenac, MO

89°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Frontenac

Missouri

89°
No results found.
Try searching for a city, zip code or point of interest.
settings
Frontenac, 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

8 PM

85°
RealFeel® 95°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

RealFeel Shade™95°

WindSSW 7 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts15 mph

Humidity76%

Indoor Humidity76% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover51%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

83°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

WindS 6 mph

Air QualityFair

Wind Gusts15 mph

Humidity75%

Indoor Humidity75% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover75%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

81°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 7%
Chevron down
Cloudy
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

WindS 6 mph

Air QualityFair

Wind Gusts15 mph

Humidity81%

Indoor Humidity81% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

80°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 7%
Chevron down
Cloudy
alerts

Extreme Heat Warning

12:00 PM Saturday - 7:00 PM Thursday

WindS 6 mph

Air QualityFair

Wind Gusts15 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling30000 ft

Further Ahead

Tomorrow

Monday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

When water hits like a tornado: The violent force of flash flooding

2 days ago

Severe Weather

Severe thunderstorms to bring a risk for flash flooding

4 hours ago

Weather News

Lightning strike scorches Florida golf green

1 day ago

Weather Forecasts

When will the Northeast get relief from the heat and humidity?

15 hours ago

Weather News

Why the search for the missing in Texas may take months

1 day ago

 More Stories

Featured Stories

Recreation

Felix Baumgartner, known for jump from stratosphere, dies in crash

1 day ago

Weather News

Curious Colorado bear rescued from storm drain

1 day ago

Weather News

Dinosaur fossil found underneath a Denver museum’s parking lot

2 days ago

Weather News

Dolphin rescued from shallow lagoon in South Carolina

1 day ago

Weather News

What happens when an octopus engages with art?

1 day ago
World North America United States Missouri Frontenac

Weather Near Frontenac:

  • 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 RealFeel® and RealFeel Shade™ 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 RealFeel® and RealFeel Shade™ 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
© 2025 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

...

...

...