Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
LIVE: Storm chasers, meteorologists tracking the tornado outbreak in the Plains. WATCH NOW. Chevron right
High-risk tornado outbreak unfolds across the Plains. Click for the forecast. Chevron right

St. Charles, MO

64°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Charles

Missouri

64°
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. Charles, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day 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 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
May 18

Morning

5/18
80°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Showers and heavy thunderstorms; mostly cloudy
alerts

Flood Watch

9:02 AM Monday - 1:00 PM Tuesday

WindESE 9 mph

Wind Gusts25 mph

Humidity89%

Dew Point67°

Probability of Precipitation86%

Precipitation0.30 in

Rain0.30 in

Cloud Cover100%

Visibility6 mi

Afternoon

Day & Night

Sun & Moon

14 hrs 23 mins
Rise 5:47 AM
Set 8:10 PM
Waxing Crescent
Rise 6:58 AM
Set 11:01 PM

Temperature History

5/18
High
Low
Forecast
80°
70°
Average
78°
59°
Last Year
79°
60°
Record
94°
1996
39°
2002

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

High-risk tornado outbreak unfolds across Plains into Monday night

31 minutes ago

Weather Forecasts

Heat wave to complete spring weather whiplash, worsen drought in East

1 hour ago

Severe Weather

Tornadoes charge through Plains, Midwest, ripping apart homes in Nebra...

2 hours ago

Astronomy

Crescent moon is about to join Venus and Jupiter in evening sky

8 hours ago

Weather Forecasts

Memorial Day weekend: Downpours, storms from Texas to New England

2 hours ago

 More Stories

Featured Stories

Astronomy

Watch an asteroid safely pass close to Earth on Monday

5 hours ago

Severe Weather

10 types of tornadoes that occur in the US

8 hours ago

Astronomy

SpaceX poised for first Starship flight test of 2026

3 days ago

Severe Weather

Does a green sky mean a tornado is coming?

8 hours ago

Climate

Turkmenistan's fiery 'Gates of Hell' crater is dimming

4 days ago
World North America United States Missouri St. Charles

Weather Near St. Charles:

  • O'Fallon, MO
  • Springfield, IL
  • 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

...

...

...