Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
LIVE Northeast severe weather coverage as storms threaten NYC, DC, Philly. WATCH NOW: Chevron right
Severe storms with damaging winds to focus on central, eastern US. Click for the forecast. Chevron right

St. Charles, MO

70°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Charles

Missouri

70°
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

Today's Weather

Wed, May 20

Mostly cloudy and not as warm Hi: 70°

Tonight: Mostly cloudy Lo: 55°

Current Weather

5:46 PM

70°F
RealFeel® 70°
Mostly cloudy More Details
RealFeel Shade™ 68°
Wind NNE 3 mph
Wind Gusts 6 mph
Air Quality Fair

Looking Ahead

Thunderstorms in the area late tomorrow night through late Friday night

St. Charles Weather Radar

St. Charles Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

6 PM 69°
rain drop 20%
7 PM 68°
rain drop 13%
8 PM 66°
rain drop 0%
9 PM 65°
rain drop 0%
10 PM 64°
rain drop 0%
11 PM 63°
rain drop 0%
12 AM 62°
rain drop 0%
1 AM 61°
rain drop 0%
2 AM 60°
rain drop 0%
3 AM 59°
rain drop 0%
4 AM 57°
rain drop 0%
5 AM 56°
rain drop 0%

10-Day Weather Forecast

Today

5/20

70° 55°

Mostly cloudy and not as warm

Night: Mostly cloudy

55%

Thu

5/21

72° 60°

Partly sunny and pleasant

A shower and t-storm late

10%

Fri

5/22

68° 60°

Cloudy, a shower and t-storm

Overcast with a stray t-storm

88%

Sat

5/23

78° 61°

Thunderstorm

A shower early; rather cloudy

61%

Sun

5/24

77° 61°

Cloudy, a thunderstorm; humid

Partly cloudy

55%

Mon

5/25

77° 63°

Humid with a t-storm in spots

Partly cloudy and humid

30%

Tue

5/26

80° 64°

A couple of afternoon showers

A thunderstorm in spots late

55%

Wed

5/27

83° 65°

Humid with rain and a t-storm

Humid with a t-storm in spots

70%

Thu

5/28

82° 64°

An afternoon t-storm or two

Some rain and a t-storm early

64%

Fri

5/29

80° 65°

T-storms, mainly late; humid

Cloudy, showers around; humid

80%

Sun & Moon

14 hrs 26 mins
Rise 5:46 AM
Set 8:12 PM
Waxing Crescent
Rise 9:22 AM
Set 12:41 AM

Air Quality

See More
Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Allergy Outlook

See All
Tree Pollen High Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Low Data is not supported in this location

Top Stories

Severe Weather

Severe storms with damaging winds to focus on central, eastern US

3 hours ago

LIVE: Northeast severe weather coverage as storms threaten NYC, DC

Weather Forecasts

Northeast temps to crash 25° to 50°F ahead of Memorial Day weekend

3 hours ago

Weather News

Man rescued from Santa Rosa Island; SOS written on charred landscape

7 hours ago

Weather Forecasts

Memorial Day weekend: wet in East, Southeast; mostly dry in the West

5 hours ago

More Stories

Featured Stories

Recreation

It’s nearly Memorial Day, but this national park just had a snowstorm

5 hours ago

Hurricane

Hurricane Hunters will drop new drone into Atlantic hurricanes to meas...

6 hours ago

Astronomy

SpaceX poised for first Starship flight test of 2026 following delays

1 day ago

Weather News

California gray wolf is spotted in Sequoia, marking historic return

1 day ago

Weather News

India scorched by heat wave, power demand driven to new record

1 day 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

...

...

...