Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Hottest day yet as heat wave intensifies in the eastern US. Click for the forecast. Chevron right
4th of July forecast: Where will storms disrupt outdoor plans? Chevron right

Longmont, CO

64°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Longmont

Colorado

64°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
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
Longmont, CO 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
Thursday, July 16

Day

7/16
91°Hi
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
Occasional morning rain; otherwise, cloudy

Max UV Index3.0 (Moderate)

WindNNW 4 mph

Wind Gusts5 mph

Probability of Precipitation56%

Probability of Thunderstorms0%

Precipitation0.03 in

Rain0.03 in

Hours of Precipitation1.5

Hours of Rain1.5

Cloud Cover86%

Morning

Afternoon

Night

7/16
59°Lo
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Mostly cloudy with a couple of showers

WindENE 2 mph

Wind Gusts5 mph

Probability of Precipitation63%

Probability of Thunderstorms13%

Precipitation0.13 in

Rain0.13 in

Hours of Precipitation2

Hours of Rain2

Cloud Cover82%

Evening

Overnight

Sun & Moon

14 hrs 44 mins
Rise 5:44 AM
Set 8:28 PM
Waxing Crescent
Rise 8:21 AM
Set 10:12 PM

Temperature History

7/16
High
Low
Forecast
91°
59°
Average
91°
56°
Last Year
81°
62°

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Fourth of July week furnace: Dangerous heat dome for 250 million

3 hours ago

Severe Weather

Thunderstorms to circle massive heat furnace into Fourth of July

3 hours ago

Weather News

America 250 events are being canceled, reshaped as heat dome grips US

1 hour ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Heat forces officials to change Fan Fest hours in Philadelphia

23 hours ago

Weather Forecasts

Extreme heat, storms and wildfires highlight July 4 weather hazards

3 hours ago

 More Stories

Featured Stories

Weather News

2 climbers scale Empire State Building during dangerous heat wave

18 hours ago

Astronomy

Asteroid Day marks 1908 impact as scientists ready for new discoveries

1 day ago

Weather News

Chicks fly from nest of famous California eagles Jackie and Shadow

1 day ago

Astronomy

A viral sunset and dueling meteor showers are coming in July

1 day ago

Recreation

12-year-old injured by bison in Yellowstone National Park

2 days ago
World North America United States Colorado Longmont

Weather Near Longmont:

  • Boulder, CO
  • Denver, CO
  • Fort Collins, CO
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

...

...

...