What is the weather in Keystone right now?

Current weather in Keystone is scattered clouds.

Where can I find the hourly weather forecast for Keystone?

This page shows hourly weather forecast for Keystone, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Keystone updated regularly?

Weather data for Keystone is updated regularly with the latest available observations and forecasts.

Now · 2:56 PM

Keystone Weather & Hourly Forecast

United States · Colorado · 80435

75°F

Partly cloudy

Feels like: 73°F

💧 Humidity 23% 🌡 Pressure 29.88 inHg 💨 Wind 4 mph 👁 Visibility 6.2 mi ☁ Clouds 46% ☀️ UV index 9.0 · Very high 🌅 Sunrise 6:34 AM 🌇 Sunset 7:31 PM

Hourly Forecast for Keystone

Today

3:00 PM

Partly cloudy

75° 💧 None 💨 4 mph H 23%29.88 inHg

6:00 PM

Mostly cloudy

72° 💧 None 💨 6 mph H 38%30.00 inHg

9:00 PM

Overcast night

61° 💧 None 💨 4 mph H 61%30.15 inHg

Tomorrow

12:00 AM

Mostly cloudy night

56° 💧 None 💨 1 mph H 65%30.15 inHg

3:00 AM

Clear night

52° 💧 None 💨 1 mph H 70%30.18 inHg

6:00 AM

Clear night

50° 💧 None 💨 1 mph H 72%30.21 inHg

9:00 AM

Mostly cloudy

64° 💧 None 💨 1 mph H 44%30.12 inHg

12:00 PM

Mostly cloudy

72° 💧 None 💨 6 mph H 33%30.06 inHg

3:00 PM

Overcast

74° 💧 None 💨 1 mph H 39%30.03 inHg

6:00 PM

Light rain

68° 💧 0.03 in 💨 2 mph H 68%30.12 inHg

9:00 PM

Overcast night

60° 💧 None 💨 1 mph H 78%30.18 inHg

Sunday

12:00 AM

Overcast night

57° 💧 None 💨 2 mph H 75%30.15 inHg

3:00 AM

Overcast night

54° 💧 None 💨 1 mph H 78%30.15 inHg

6:00 AM

Mostly cloudy night

51° 💧 None 💨 1 mph H 80%30.18 inHg

9:00 AM

Mostly sunny

63° 💧 None 💨 2 mph H 53%30.09 inHg

12:00 PM

Mostly cloudy

74° 💧 None 💨 3 mph H 26%30.00 inHg

Today

3:00 PM

Partly cloudy

75° 💧 None 💨 4 mph H 23%29.88 inHg

4:00 PM

Mostly cloudy

75° 💧 None 💨 6 mph H 23%29.88 inHg

5:00 PM

Mostly cloudy

75° 💧 None 💨 5 mph H 27%29.91 inHg

6:00 PM

Mostly cloudy

72° 💧 None 💨 6 mph H 38%30.00 inHg

7:00 PM

Overcast

67° 💧 None 💨 4 mph H 55%30.09 inHg

8:00 PM

Overcast night

64° 💧 None 💨 4 mph H 65%30.12 inHg

9:00 PM

Overcast night

61° 💧 None 💨 4 mph H 61%30.15 inHg

10:00 PM

Overcast night

60° 💧 None 💨 2 mph H 59%30.15 inHg

11:00 PM

Overcast night

58° 💧 None 💨 2 mph H 61%30.15 inHg

Tomorrow

12:00 AM

Mostly cloudy night

56° 💧 None 💨 1 mph H 65%30.15 inHg

1:00 AM

Clear night

54° 💧 None 💨 1 mph H 66%30.18 inHg

2:00 AM

Clear night

53° 💧 None 💨 0 mph H 68%30.18 inHg

3:00 AM

Clear night

52° 💧 None 💨 1 mph H 70%30.18 inHg

4:00 AM

Clear night

51° 💧 None 💨 1 mph H 70%30.18 inHg

5:00 AM

Clear night

51° 💧 None 💨 0 mph H 71%30.18 inHg

6:00 AM

Clear night

50° 💧 None 💨 1 mph H 72%30.21 inHg

7:00 AM

Mostly cloudy

51° 💧 None 💨 0 mph H 70%30.21 inHg

8:00 AM

Overcast

56° 💧 None 💨 0 mph H 58%30.18 inHg

9:00 AM

Mostly cloudy

64° 💧 None 💨 1 mph H 44%30.12 inHg

10:00 AM

Mostly cloudy

68° 💧 None 💨 1 mph H 39%30.09 inHg

11:00 AM

Mostly cloudy

71° 💧 None 💨 3 mph H 34%30.06 inHg

12:00 PM

Mostly cloudy

72° 💧 None 💨 6 mph H 33%30.06 inHg

1:00 PM

Overcast

72° 💧 None 💨 3 mph H 35%30.03 inHg

2:00 PM

Overcast

73° 💧 None 💨 3 mph H 34%30.03 inHg

3:00 PM

Overcast

74° 💧 None 💨 1 mph H 39%30.03 inHg

4:00 PM

Overcast

72° 💧 None 💨 3 mph H 42%30.03 inHg

5:00 PM

Overcast

71° 💧 None 💨 5 mph H 48%30.03 inHg

6:00 PM

Light rain

68° 💧 0.02 in 💨 2 mph H 68%30.12 inHg

7:00 PM

Light rain

63° 💧 0.01 in 💨 3 mph H 80%30.15 inHg

8:00 PM

Overcast night

62° 💧 None 💨 2 mph H 82%30.18 inHg

9:00 PM

Overcast night

60° 💧 None 💨 1 mph H 78%30.18 inHg

10:00 PM

Overcast night

59° 💧 None 💨 3 mph H 78%30.18 inHg

11:00 PM

Overcast night

58° 💧 None 💨 2 mph H 75%30.15 inHg

Sunday

12:00 AM

Overcast night

57° 💧 None 💨 2 mph H 75%30.15 inHg

1:00 AM

Overcast night

56° 💧 None 💨 3 mph H 75%30.15 inHg

2:00 AM

Overcast night

55° 💧 None 💨 1 mph H 77%30.15 inHg

3:00 AM

Overcast night

54° 💧 None 💨 1 mph H 78%30.15 inHg

4:00 AM

Mostly cloudy night

52° 💧 None 💨 1 mph H 82%30.15 inHg

5:00 AM

Mostly cloudy night

52° 💧 None 💨 2 mph H 82%30.18 inHg

6:00 AM

Mostly cloudy night

51° 💧 None 💨 1 mph H 80%30.18 inHg

7:00 AM

Mostly sunny

50° 💧 None 💨 2 mph H 81%30.18 inHg

8:00 AM

Mostly sunny

56° 💧 None 💨 2 mph H 68%30.15 inHg

9:00 AM

Mostly sunny

63° 💧 None 💨 2 mph H 53%30.09 inHg

10:00 AM

Partly cloudy

68° 💧 None 💨 2 mph H 40%30.06 inHg

11:00 AM

Mostly cloudy

71° 💧 None 💨 3 mph H 32%30.06 inHg

12:00 PM

Mostly cloudy

74° 💧 None 💨 3 mph H 26%30.00 inHg

1:00 PM

Overcast

76° 💧 None 💨 3 mph H 23%29.97 inHg

2:00 PM

Overcast

75° 💧 None 💨 2 mph H 23%29.94 inHg

3:00 PM

Overcast

70° 💧 None 💨 1 mph H 29%29.97 inHg

4:00 PM

Overcast

70° 💧 None 💨 5 mph H 34%29.94 inHg

5:00 PM

Overcast

69° 💧 None 💨 4 mph H 35%29.94 inHg

6:00 PM

Overcast

68° 💧 None 💨 3 mph H 38%29.94 inHg

7:00 PM

Light rain

62° 💧 0.01 in 💨 4 mph H 57%30.00 inHg

8:00 PM

Light rain

58° 💧 0.01 in 💨 1 mph H 72%30.06 inHg

9:00 PM

Overcast night

57° 💧 None 💨 2 mph H 75%30.06 inHg

10:00 PM

Overcast night

56° 💧 None 💨 4 mph H 75%30.03 inHg

11:00 PM

Overcast night

54° 💧 None 💨 3 mph H 79%30.06 inHg

Monday

12:00 AM

Overcast night

57° 💧 None 💨 4 mph H 76%30.03 inHg

1:00 AM

Overcast night

57° 💧 None 💨 4 mph H 75%30.00 inHg

2:00 AM

Overcast night

54° 💧 None 💨 4 mph H 83%30.03 inHg

3:00 AM

Overcast night

53° 💧 None 💨 3 mph H 83%30.00 inHg

4:00 AM

Overcast night

53° 💧 None 💨 4 mph H 82%30.00 inHg

5:00 AM

Overcast night

53° 💧 None 💨 4 mph H 81%30.00 inHg

6:00 AM

Overcast night

53° 💧 None 💨 4 mph H 79%30.00 inHg

7:00 AM

Overcast

53° 💧 None 💨 2 mph H 79%30.03 inHg

8:00 AM

Overcast

57° 💧 None 💨 2 mph H 70%30.00 inHg

9:00 AM

Overcast

61° 💧 None 💨 3 mph H 57%29.97 inHg

10:00 AM

Overcast

64° 💧 None 💨 5 mph H 48%29.97 inHg

11:00 AM

Overcast

64° 💧 None 💨 5 mph H 48%29.94 inHg

12:00 PM

Overcast

61° 💧 None 💨 3 mph H 55%29.97 inHg

1:00 PM

Overcast

69° 💧 None 💨 7 mph H 42%29.91 inHg

2:00 PM

Overcast

68° 💧 None 💨 11 mph H 41%29.91 inHg

3:00 PM

Overcast

66° 💧 None 💨 10 mph H 45%29.91 inHg

4:00 PM

Overcast

64° 💧 None 💨 7 mph H 50%29.94 inHg

5:00 PM

Overcast

60° 💧 None 💨 4 mph H 60%30.00 inHg

6:00 PM

Overcast

61° 💧 None 💨 2 mph H 57%29.97 inHg

7:00 PM

Overcast

58° 💧 None 💨 1 mph H 65%30.00 inHg

8:00 PM

Overcast night

53° 💧 None 💨 2 mph H 78%30.06 inHg

9:00 PM

Overcast night

52° 💧 None 💨 1 mph H 82%30.09 inHg

10:00 PM

Overcast night

51° 💧 None 💨 1 mph H 83%30.12 inHg

11:00 PM

Overcast night

51° 💧 None 💨 2 mph H 83%30.12 inHg

Tuesday

12:00 AM

Overcast night

50° 💧 None 💨 2 mph H 83%30.12 inHg

1:00 AM

Overcast night

49° 💧 None 💨 2 mph H 85%30.15 inHg

2:00 AM

Partly cloudy night

47° 💧 None 💨 2 mph H 88%30.15 inHg

3:00 AM

Mostly cloudy night

47° 💧 None 💨 2 mph H 89%30.15 inHg

4:00 AM

Mostly cloudy night

47° 💧 None 💨 2 mph H 89%30.18 inHg

5:00 AM

Mostly cloudy night

46° 💧 None 💨 2 mph H 89%30.18 inHg

6:00 AM

Mostly cloudy night

46° 💧 None 💨 2 mph H 89%30.21 inHg

7:00 AM

Mostly sunny

46° 💧 None 💨 2 mph H 88%30.24 inHg

8:00 AM

Sunny

53° 💧 None 💨 2 mph H 70%30.21 inHg

9:00 AM

Sunny

59° 💧 None 💨 4 mph H 44%30.15 inHg

10:00 AM

Sunny

63° 💧 None 💨 5 mph H 31%30.12 inHg

11:00 AM

Sunny

66° 💧 None 💨 6 mph H 25%30.12 inHg

12:00 PM

Sunny

69° 💧 None 💨 8 mph H 20%30.09 inHg

1:00 PM

Sunny

71° 💧 None 💨 8 mph H 19%30.06 inHg

2:00 PM

Sunny

73° 💧 None 💨 8 mph H 18%30.03 inHg

In Keystone and, more broadly, across the state of Colorado: As the afternoon progresses into the evening, expect mostly sunny skies with just a few clouds drifting through. Temperatures will remain mild to warm, ranging from the low 70s to the mid-80s. Light west winds will persist, with speeds up to 9 mph and gusts reaching 11 mph. No significant rainfall is anticipated, so conditions will remain dry through the evening hours. It should be a pleasant end to the day with comfortable temperatures and gentle breezes.

15-Day Weather Outlook for Keystone

TomorrowTomorrow

Light rain 74°/50° 💧 0.03 in 💨 6 mph

Sunday, Sep 6Sun Sep 6

Light rain 76°/50° 💧 0.01 in 💨 5 mph

Monday, Sep 7Mon Sep 7

Light rain 69°/52° 💧 0.00 in 💨 11 mph

Tuesday, Sep 8Tue Sep 8

Sunny 73°/46° 💧 None 💨 8 mph

Wednesday, Sep 9Wed Sep 9

Light rain 74°/49° 💧 0.05 in 💨 6 mph

Thursday, Sep 10Thu Sep 10

Light rain 67°/50° 💧 0.06 in 💨 7 mph

Friday, Sep 11Fri Sep 11

Light rain 73°/49° 💧 0.03 in 💨 5 mph

Saturday, Sep 12Sat Sep 12

Sunny 77°/50° 💧 None 💨 7 mph

Sunday, Sep 13Sun Sep 13

Light rain 74°/50° 💧 0.03 in 💨 5 mph

Monday, Sep 14Mon Sep 14

Light rain 68°/49° 💧 0.04 in 💨 6 mph

Tuesday, Sep 15Tue Sep 15

Light rain 68°/50° 💧 0.14 in 💨 9 mph

Wednesday, Sep 16Wed Sep 16

Moderate rain 63°/49° 💧 0.20 in 💨 8 mph

Thursday, Sep 17Thu Sep 17

Light rain 52°/45° 💧 0.18 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Light rain 66°/38° 💧 0.03 in 💨 8 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 66°/43° 💧 None 💨 14 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Keystone

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Keystone

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 3:00 PM

PM2.5 Fine particles Good 2,1µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 4,0µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 61,5µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,2µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Keystone

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 9,7Very high 🙂Fair

Tomorrow UV 7,5High 🙂Fair

Sunday UV 8,3Very high 😊Good

Monday UV 5,0Moderate 😊Good

Tuesday UV 6,0High 😊Good

Wednesday UV 5,0Moderate —Unavailable

Thursday UV 5,0Moderate —Unavailable

Hourly UV index today

3:00 PMUV 6,8 4:00 PMUV 3,8 5:00 PMUV 1,8 6:00 PMUV 0,4 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed. Dry air can increase hydration needs.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Keystone

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · KEYSTONE, COLORADO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

93/100Best-hour score

BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 9:03 PM–5:02 AM

☁ Cloud cover 8% Real hourly forecast for the best viewing hour.

☾ Moonlight 41% Last Quarter · Moon about 9° above the horizon at the best viewing hour.

☄ Meteor activity No major shower Sporadic meteors remain possible even without a major shower.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min45%

UPCOMING METEOR NIGHTSAstronomy only — check the weather closer to each date.

SEP 20

Southern TauridsActivity begins · 63% Moon

Weather TBD

OCT 2

OrionidsActivity begins · 66% Moon

Weather TBD

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

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Forecast data for Keystone were last refreshed today at 2:17 PM. The current forecast period extends through 06/09/2026 at 12:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.