Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Rain to unleash flooding, snow may close Donner Pass in California. Click for details. Chevron right

Roundup, MT

47°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Roundup

Montana

47°
No results found.
Try searching for a city, zip code or point of interest.
settings
Roundup, MT 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
Friday, January 2

Day

1/2
53°Hi
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
RealFeel Shade™ 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
Breezy with considerable cloudiness

Max UV Index1.0 (Low)

AccuLumen Brightness Index™3 (Dull)

WindWSW 12 mph

Wind Gusts20 mph

Probability of Precipitation75%

Probability of Thunderstorms0%

Precipitation0.06 in

Ice0.06 in

Hours of Precipitation2

Cloud Cover92%

Morning

Afternoon

Night

1/2
29°Lo
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
Breezy this evening; otherwise, cloudy most of the time

WindSW 10 mph

Wind Gusts22 mph

Probability of Precipitation2%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover84%

Evening

Overnight

Sun & Moon

8 hrs 41 mins
Rise 7:58 AM
Set 4:39 PM
Waxing Gibbous
Rise 3:36 PM
Set 8:40 AM

Temperature History

1/2
High
Low
Forecast
53°
29°
Average
37°
13°
Last Year
19°
10°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

More wintry trouble ahead for Upper Midwest, interior Northeast

4 hours ago

Winter Weather

Early 2026 rain, mountain snow to expand in California and western US

54 minutes ago

Winter Weather

Storm to quench southeast US, with a wintry twist for Virginia

2 hours ago

Winter Weather

Bomb cyclone spawns blizzard, tornadoes from Midwest to Northeast

26 minutes ago

Winter Weather

80 inches of snow in Juneau, Alaska smashes record, sinks boats

1 day ago

 More Stories

Featured Stories

Weather News

Suspected mountain lion attack in Colorado leaves woman dead

4 hours ago

Astronomy

1st meteor shower of 2026 to peak this weekend

2 hours ago

Travel

Ocean Infinity resumes search for Malaysia Airlines Flight 370

4 hours ago

Astronomy

Top rocket launches of 2025 you had to see to believe

2 days ago

Astronomy

Full moons and supermoons in 2026: Every date to know

1 day ago
World North America United States Montana Roundup

Weather Near Roundup:

  • Billings, MT
  • Cody, WY
  • Miles City, MT
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

...

...

...