Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Snow squalls, brutal cold to return in the Northeast. Click for the forecast. Chevron right

O'Fallon, MO

35°F
Location Chevron down
Location News Videos
Use Current Location
Recent

O'Fallon

Missouri

35°
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
O'Fallon, 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, February 3

Current Weather

1:59 PM

35°F
Cloudy
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel Shade™ 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel®
35°
RealFeel Shade™
33°
Max UV Index
1.1 (Low)
Wind
N 5 mph
Wind Gusts
9 mph
Humidity
71%
Indoor Humidity
35% (Dry)
Dew Point
26° F
Pressure
↓ 30.19 in
Cloud Cover
95%
Visibility
12 mi
Cloud Ceiling
14300 ft

Day

2/3
36°Hi
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel Shade™ 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
Becoming cloudy; watch for some freezing drizzle as well

Max UV Index2.0 (Low)

AccuLumen Brightness Index™4 (Dull)

WindN 9 mph

Wind Gusts18 mph

Probability of Precipitation25%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover72%

Morning

Afternoon

Night

2/3
22°Lo
RealFeel® 18°
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
Mainly clear this evening, then mostly cloudy late

WindN 7 mph

Wind Gusts9 mph

Probability of Precipitation8%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover55%

Evening

Overnight

Sun & Moon

10 hrs 20 mins
Rise 7:07 AM
Set 5:27 PM
Waning Gibbous
Rise 7:41 PM
Set 8:34 AM

Temperature History

2/3
High
Low
Forecast
36°
22°
Average
42°
23°
Last Year
74°
33°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Snow squalls, brutal cold to return late week in Northeast

1 hour ago

Winter Weather

4 homes collapse into the ocean on North Carolina's Outer Banks

1 day ago

Winter Weather

Florida cold delivers falling iguanas and snow flurries

23 hours ago

Winter Weather

Frigid air eases in second week of February for Midwest, East

1 hour ago

Winter Weather

Another storm to bring stripe of snow for Ohio Valley, mid-Atlantic

1 hour ago

 More Stories

Featured Stories

Weather News

Dense fog triggers massive Highway 99 pileup in California

2 days ago

Weather News

Daylight saving time 2026: When do clocks spring forward?

1 day ago

Astronomy

Newly discovered exoplanet may sit on the edge of habitability

1 day ago

Hurricane

Trash bin lost in Hurricane Sally makes 5-year trek to United Kingdom

2 days ago

Winter Weather

Snow piles nearly 7 feet high as deadly storms bury northern Japan

4 hours ago
World North America United States Missouri O'Fallon

Weather Near O'Fallon:

  • St. Charles, MO
  • St. Louis, MO
  • St. Peters, 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

...

...

...