Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
TONIGHT: Aurora to glow over dozens of US states. See the details. Chevron right
Large winter storm threatens central, eastern US later this week. Get the forecast. Chevron right

St. Ann, MO

20°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Ann

Missouri

20°
No results found.
Try searching for a city, zip code or point of interest.
Create Account Unlock extended daily forecasts and additional saved locations — all with your free account.
Let's Go Chevron right
Have an account already? Login
settings
St. Ann, 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
Tuesday, January 20

Day

1/20
42°Hi
RealFeel® 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel Shade™ 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
Mostly sunny and not as cold; breezy in the afternoon

Max UV Index3.0 (Moderate)

AccuLumen Brightness Index™9 (Very Bright)

WindS 13 mph

Wind Gusts21 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover16%

Morning

Afternoon

Night

1/20
34°Lo
RealFeel® 23°
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
Mostly cloudy

WindSSW 13 mph

Wind Gusts21 mph

Probability of Precipitation2%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover84%

Evening

Overnight

Sun & Moon

9 hrs 53 mins
Rise 7:16 AM
Set 5:09 PM
Waxing Crescent
Rise 8:32 AM
Set 7:13 PM

Temperature History

1/20
High
Low
Forecast
42°
34°
Average
40°
23°
Last Year
21°
4°
Record
72°
1906
-18°
1985

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Stormy late-January setup raises risk for snow and ice impacts

15 minutes ago

Winter Weather

Massive 100-vehicle crash shuts down highway, multiple injured

1 hour ago

Astronomy

Northern lights forecast: Aurora could reach as far south as Alabama

2 hours ago

Winter Weather

Dangerously cold air to surge through dozens of states later this week

38 minutes ago

Weather News

Deadly wildfires burned across southern Chile amid extreme heat and wi...

2 hours ago

 More Stories

Featured Stories

Astronomy

How to photograph aurora lights on your phone

6 hours ago

Climate

Western US faces worsening snow drought, with California the exception

2 days ago

Climate

Why this famous iceberg turned blue and what it says about melting ice

3 days ago

Weather News

High-speed train crash kills dozens in Spain, many more injured

6 hours ago

Recreation

Death of 2 Florida students highlights risks of sand collapse

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

Weather Near St. Ann:

  • 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
© 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

...

...

...