Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Severe storms with damaging winds to focus on central, eastern US. Click for the forecast. Chevron right

Keystone, CO

33°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Keystone

Colorado

33°
No results found.
Try searching for a city, zip code or point of interest.
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
Keystone, 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 WinterCast

Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

WinterCast

Little to no accumulation

Tue, 5/19, 10:00 PM - Wed, 5/20, 8:00 AM

Snow

8 AM

37°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 48%
Chevron down
Partly sunny

RealFeel Shade™33°

WindSSW 6 mph

Air QualityExcellent

Max UV Index2.3 (Low)

Wind Gusts7 mph

Humidity74%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover40%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

44°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds

RealFeel Shade™41°

WindWSW 6 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts7 mph

Humidity62%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling3700 ft

10 AM

46°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™41°

WindWSW 7 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts8 mph

Humidity57%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.02 in

Visibility6 mi

Cloud Ceiling4800 ft

11 AM

47°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 51%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™40°

WindW 8 mph

Air QualityFair

Max UV Index3.6 (Moderate)

Wind Gusts9 mph

Humidity54%

Indoor Humidity40% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.02 in

Visibility6 mi

Cloud Ceiling5900 ft

12 PM

47°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds

RealFeel Shade™42°

WindW 9 mph

Air QualityFair

Max UV Index5.5 (Moderate)

Wind Gusts14 mph

Humidity53%

Indoor Humidity40% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling7100 ft

1 PM

48°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 40%
Chevron down
Intermittent clouds

RealFeel Shade™43°

WindW 9 mph

Air QualityFair

Max UV Index6.5 (High)

Wind Gusts15 mph

Humidity50%

Indoor Humidity39% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling9600 ft

2 PM

49°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds

RealFeel Shade™43°

WindWNW 9 mph

Air QualityFair

Max UV Index6.3 (High)

Wind Gusts15 mph

Humidity49%

Indoor Humidity39% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling12100 ft

3 PM

49°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds

RealFeel Shade™43°

WindWNW 10 mph

Air QualityPoor

Max UV Index5.1 (Moderate)

Wind Gusts15 mph

Humidity47%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

4 PM

49°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 40%
Chevron down
Intermittent clouds

RealFeel Shade™44°

WindWNW 10 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts15 mph

Humidity44%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

5 PM

48°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 55%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™40°

WindWNW 10 mph

Air QualityPoor

Max UV Index1.7 (Low)

Wind Gusts14 mph

Humidity44%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.02 in

Visibility6 mi

Cloud Ceiling7000 ft

6 PM

47°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds

RealFeel Shade™42°

WindWNW 9 mph

Air QualityPoor

Max UV Index1.5 (Low)

Wind Gusts14 mph

Humidity44%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

7 PM

45°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 55%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™39°

WindWNW 8 mph

Air QualityPoor

Max UV Index0.6 (Low)

Wind Gusts10 mph

Humidity46%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover70%

Rain0.02 in

Visibility6 mi

Cloud Ceiling7000 ft

8 PM

42°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 10%
Chevron down
Partly sunny

RealFeel Shade™39°

WindNW 7 mph

Air QualityPoor

Max UV Index0.2 (Low)

Wind Gusts8 mph

Humidity52%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

39°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Mostly clear

WindNNW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity61%

Indoor Humidity36% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

36°
RealFeel® 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Mostly clear

WindNNW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity67%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover12%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

33°
RealFeel® 29°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Clear

WindSW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity73%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Keystone

AccuWeather's hourly forecast for Keystone provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 37° with a RealFeel® of 38°, partly sunny with a 48% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Friday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Severe storms with damaging winds to focus on central, eastern US

1 hour ago

Weather Forecasts

Northeast temps to crash 25° to 50°F ahead of Memorial Day weekend

1 hour ago

Brace for pollen: High pollen levels expected in parts of the US this ...

5 hours ago 0:55

Weather News

Man rescued from Santa Rosa Island; SOS written on charred landscape

1 hour ago

Weather Forecasts

Memorial Day weekend: Downpours, storms from Texas to New England

4 hours ago

 More Stories

Featured Stories

Astronomy

SpaceX poised for first Starship flight test of 2026 following delays

23 hours ago

Weather News

California gray wolf is spotted in Sequoia, marking historic return

19 hours ago

Weather News

India scorched by heat wave, power demand driven to new record

21 hours ago

Severe Weather

10 types of tornadoes that occur in the US

2 days ago

Health

American infected with Ebola in DRC

21 hours ago
World North America United States Colorado Keystone

Weather Near Keystone:

  • 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

...

...

...