Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Polar vortex to unleash frigid air before end of January. Get the details. Chevron right
1st of 3 storms to deliver snow, rain to Northeast. See the forecast. Chevron right

St. Marys, IA

17°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Marys

Iowa

17°
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. Marys, IA 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
Thursday, January 15

Current Weather

2:01 AM

17°F
Clear
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
RealFeel®
18°
Wind
NW 3 mph
Wind Gusts
8 mph
Humidity
82%
Indoor Humidity
25% (Very Dry)
Dew Point
12° F
Pressure
↔ 30.23 in
Cloud Cover
0%
Visibility
11 mi
Cloud Ceiling
40000 ft

Day

1/15
36°Hi
RealFeel® 24°
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
RealFeel Shade™ 24°
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; breezy this afternoon

Max UV Index2.0 (Low)

AccuLumen Brightness Index™4 (Dull)

WindSSW 13 mph

Wind Gusts28 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover83%

Morning

Afternoon

Night

1/15
31°Lo
RealFeel® 16°
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 and breezy with a snow shower

WindWNW 16 mph

Wind Gusts25 mph

Probability of Precipitation55%

Probability of Thunderstorms0%

Precipitation0.00 in

Snow

Hours of Precipitation2

Cloud Cover94%

Evening

Overnight

Sun & Moon

9 hrs 32 mins
Rise 7:39 AM
Set 5:11 PM
Waning Crescent
Rise 5:33 AM
Set 2:05 PM

Temperature History

1/15
High
Low
Forecast
36°
31°
Average
30°
13°
Last Year
31°
2°
Record
58°
2006
-27°
1888

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Snow, lake-effect and freeze-ups to accompany colder air into next wee...

11 hours ago

Weather Forecasts

Florida to have freezing weather as temperatures tumble in Southeast

21 hours ago

Astronomy

March’s total lunar eclipse will turn the moon red, here’s when to see...

14 hours ago

Winter Weather

Weekend storm to bring snow to part of U.S. East Coast

11 hours ago

Astronomy

Crew-11 astronauts set for early return Wednesday

13 hours ago

 More Stories

Featured Stories

Weather News

Kilauea’s latest eruption sent lava 800 feet high

1 day ago

Astronomy

NASA to roll out Artemis II rocket ahead of astronaut moon launch

17 hours ago

How to shoot the northern lights on your phone

17 hours ago 1:34
Live Blog

Lightning over Milan, like you've never seen it

LATEST ENTRY

ISS astronaut captures surreal photo of lightning and Milan at night

2 days ago

Weather News

Wildfires scorch up to 52,000 acres in Argentina's Patagonia

1 day ago
World North America United States Iowa St. Marys

Weather Near St. Marys:

  • Ames, IA
  • Des Moines, IA
  • West Des Moines, IA
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

...

...

...