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

Now · 8:12 PM

Fort Collins Weather & Hourly Forecast

United States · Colorado · 80525

76°F

Mostly clear night

Feels like: 71°F

💧 Humidity 23% 🌡 Pressure 29.68 inHg 💨 Wind 3 mph 👁 Visibility 33.9 mi ☁ Clouds 25% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Fort Collins

Today

9:00 PM

Mostly clear night

71° 💧 None 💨 5 mph H 32%29.71 inHg

Tomorrow

12:00 AM

Mostly clear night

68° 💧 None 💨 8 mph H 37%29.85 inHg

3:00 AM

Partly cloudy night

64° 💧 None 💨 9 mph H 43%29.91 inHg

6:00 AM

Clear night

58° 💧 None 💨 4 mph H 69%30.06 inHg

9:00 AM

Sunny

62° 💧 None 💨 4 mph H 57%30.09 inHg

12:00 PM

Mostly cloudy

70° 💧 0.001 in 💨 5 mph H 43%30.00 inHg

3:00 PM

Mostly cloudy

78° 💧 0.001 in 💨 6 mph H 33%29.88 inHg

6:00 PM

Partly cloudy

80° 💧 None 💨 6 mph H 31%29.83 inHg

9:00 PM

Mostly clear night

72° 💧 None 💨 1 mph H 47%29.85 inHg

Sunday

12:00 AM

Partly cloudy night

64° 💧 None 💨 5 mph H 59%29.85 inHg

3:00 AM

Mostly clear night

61° 💧 None 💨 2 mph H 61%29.85 inHg

6:00 AM

Clear night

60° 💧 None 💨 3 mph H 57%29.85 inHg

9:00 AM

Sunny

71° 💧 None 💨 2 mph H 37%29.88 inHg

12:00 PM

Mostly sunny

87° 💧 None 💨 8 mph H 22%29.77 inHg

3:00 PM

Mostly sunny

92° 💧 0.012 in 💨 10 mph H 17%29.62 inHg

6:00 PM

Mostly cloudy

89° 💧 0.005 in 💨 8 mph H 19%29.62 inHg

Today

9:00 PM

Mostly clear night

71° 💧 None 💨 5 mph H 32%29.71 inHg

10:00 PM

Clear night

67° 💧 None 💨 2 mph H 42%29.77 inHg

11:00 PM

Partly cloudy night

68° 💧 None 💨 2 mph H 37%29.83 inHg

Tomorrow

12:00 AM

Mostly clear night

68° 💧 None 💨 8 mph H 37%29.85 inHg

1:00 AM

Partly cloudy night

66° 💧 None 💨 4 mph H 38%29.83 inHg

2:00 AM

Partly cloudy night

64° 💧 None 💨 6 mph H 45%29.88 inHg

3:00 AM

Partly cloudy night

64° 💧 None 💨 9 mph H 43%29.91 inHg

4:00 AM

Mostly clear night

63° 💧 None 💨 10 mph H 50%29.97 inHg

5:00 AM

Clear night

60° 💧 None 💨 6 mph H 61%30.00 inHg

6:00 AM

Clear night

58° 💧 None 💨 4 mph H 69%30.06 inHg

7:00 AM

Sunny

57° 💧 None 💨 2 mph H 73%30.06 inHg

8:00 AM

Sunny

60° 💧 None 💨 2 mph H 62%30.09 inHg

9:00 AM

Sunny

62° 💧 None 💨 4 mph H 57%30.09 inHg

10:00 AM

Mostly sunny

65° 💧 None 💨 5 mph H 52%30.06 inHg

11:00 AM

Mostly cloudy

68° 💧 None 💨 5 mph H 47%30.03 inHg

12:00 PM

Mostly cloudy

70° 💧 None 💨 5 mph H 43%30.00 inHg

1:00 PM

Mostly cloudy

73° 💧 None 💨 5 mph H 39%29.94 inHg

2:00 PM

Mostly cloudy

76° 💧 0.001 in 💨 6 mph H 36%29.91 inHg

3:00 PM

Mostly cloudy

78° 💧 0.001 in 💨 6 mph H 33%29.88 inHg

4:00 PM

Mostly cloudy

79° 💧 None 💨 5 mph H 31%29.85 inHg

5:00 PM

Partly cloudy

80° 💧 None 💨 6 mph H 30%29.83 inHg

6:00 PM

Partly cloudy

80° 💧 None 💨 6 mph H 31%29.83 inHg

7:00 PM

Mostly sunny

76° 💧 None 💨 3 mph H 37%29.83 inHg

8:00 PM

Mostly clear night

74° 💧 None 💨 1 mph H 42%29.83 inHg

9:00 PM

Mostly clear night

72° 💧 None 💨 1 mph H 47%29.85 inHg

10:00 PM

Partly cloudy night

69° 💧 None 💨 0 mph H 52%29.88 inHg

11:00 PM

Mostly clear night

67° 💧 None 💨 5 mph H 54%29.88 inHg

Sunday

12:00 AM

Partly cloudy night

64° 💧 None 💨 5 mph H 59%29.85 inHg

1:00 AM

Partly cloudy night

62° 💧 None 💨 4 mph H 61%29.85 inHg

2:00 AM

Partly cloudy night

61° 💧 None 💨 3 mph H 63%29.85 inHg

3:00 AM

Mostly clear night

61° 💧 None 💨 2 mph H 61%29.85 inHg

4:00 AM

Clear night

60° 💧 None 💨 3 mph H 60%29.85 inHg

5:00 AM

Clear night

60° 💧 None 💨 3 mph H 58%29.85 inHg

6:00 AM

Clear night

60° 💧 None 💨 3 mph H 57%29.85 inHg

7:00 AM

Sunny

60° 💧 None 💨 2 mph H 57%29.85 inHg

8:00 AM

Sunny

65° 💧 None 💨 1 mph H 48%29.88 inHg

9:00 AM

Sunny

71° 💧 None 💨 2 mph H 37%29.88 inHg

10:00 AM

Sunny

76° 💧 None 💨 3 mph H 31%29.85 inHg

11:00 AM

Sunny

82° 💧 None 💨 5 mph H 26%29.80 inHg

12:00 PM

Mostly sunny

87° 💧 None 💨 8 mph H 22%29.77 inHg

1:00 PM

Mostly sunny

90° 💧 None 💨 10 mph H 18%29.71 inHg

2:00 PM

Sunny

92° 💧 None 💨 9 mph H 17%29.65 inHg

3:00 PM

Mostly sunny

92° 💧 0.001 in 💨 10 mph H 17%29.62 inHg

4:00 PM

Partly cloudy

92° 💧 0.002 in 💨 12 mph H 16%29.62 inHg

5:00 PM

Light rain

91° 💧 0.009 in 💨 10 mph H 18%29.59 inHg

6:00 PM

Mostly cloudy

89° 💧 0.000 in 💨 8 mph H 19%29.62 inHg

7:00 PM

Mostly cloudy

83° 💧 None 💨 4 mph H 24%29.65 inHg

8:00 PM

Light rain

73° 💧 0.004 in 💨 10 mph H 55%29.77 inHg

9:00 PM

Light thunderstorms

69° 💧 0.009 in 💨 3 mph H 81%29.83 inHg

10:00 PM

Light rain

69° 💧 0.013 in 💨 2 mph H 89%29.83 inHg

11:00 PM

Partly cloudy night

67° 💧 0.003 in 💨 4 mph H 90%29.83 inHg

Monday

12:00 AM

Mostly cloudy night

67° 💧 0.001 in 💨 3 mph H 88%29.80 inHg

1:00 AM

Mostly cloudy night

66° 💧 None 💨 3 mph H 89%29.80 inHg

2:00 AM

Overcast night

65° 💧 0.000 in 💨 3 mph H 91%29.80 inHg

3:00 AM

Overcast night

65° 💧 None 💨 4 mph H 91%29.77 inHg

4:00 AM

Mostly cloudy night

64° 💧 None 💨 3 mph H 93%29.77 inHg

5:00 AM

Mostly cloudy night

63° 💧 0.000 in 💨 1 mph H 97%29.77 inHg

6:00 AM

Mist at night

62° 💧 None 💨 1 mph H 98%29.77 inHg

3:00 PM

Partly cloudy

85° 💧 None 💨 6 mph H 25%29.68 inHg

6:00 PM

Partly cloudy

82° 💧 None 💨 9 mph H 24%29.68 inHg

9:00 PM

Mostly clear night

72° 💧 None 💨 4 mph H 44%29.77 inHg

Tuesday

12:00 AM

Partly cloudy night

68° 💧 None 💨 4 mph H 51%29.88 inHg

3:00 AM

Mostly cloudy night

63° 💧 None 💨 7 mph H 64%29.94 inHg

6:00 AM

Mostly clear night

58° 💧 None 💨 10 mph H 54%30.12 inHg

9:00 AM

Sunny

61° 💧 None 💨 3 mph H 52%30.21 inHg

12:00 PM

Mostly sunny

69° 💧 None 💨 7 mph H 38%30.15 inHg

3:00 PM

Mostly sunny

74° 💧 None 💨 9 mph H 32%30.00 inHg

6:00 PM

Partly cloudy

75° 💧 None 💨 10 mph H 30%29.97 inHg

9:00 PM

Mostly clear night

68° 💧 None 💨 8 mph H 40%30.06 inHg

Wednesday

12:00 AM

Partly cloudy night

63° 💧 None 💨 4 mph H 53%30.06 inHg

3:00 AM

Mostly cloudy night

59° 💧 None 💨 5 mph H 71%30.06 inHg

6:00 AM

Partly cloudy night

57° 💧 None 💨 5 mph H 74%30.06 inHg

9:00 AM

Mostly sunny

63° 💧 None 💨 4 mph H 60%30.12 inHg

12:00 PM

Partly cloudy

77° 💧 None 💨 1 mph H 38%30.03 inHg

3:00 PM

Partly cloudy

84° 💧 None 💨 3 mph H 28%29.91 inHg

6:00 PM

Light rain

76° 💧 None 💨 6 mph H 45%29.97 inHg

9:00 PM

Mostly cloudy night

71° 💧 None 💨 4 mph H 56%30.03 inHg

Thursday

12:00 AM

Mostly cloudy night

67° 💧 None 💨 7 mph H 70%30.06 inHg

3:00 AM

Overcast night

62° 💧 None 💨 6 mph H 86%30.06 inHg

6:00 AM

Mostly cloudy night

62° 💧 None 💨 6 mph H 88%30.06 inHg

9:00 AM

Overcast

67° 💧 None 💨 4 mph H 72%30.06 inHg

12:00 PM

Mostly cloudy

77° 💧 None 💨 4 mph H 51%29.97 inHg

6:00 PM

Overcast

73° 💧 None 💨 1 mph H 64%30.12 inHg

Friday

12:00 AM

Partly cloudy night

77° 💧 None 💨 3 mph H 48%29.97 inHg

6:00 AM

Overcast night

65° 💧 None 💨 2 mph H 84%30.00 inHg

12:00 PM

Sunny

60° 💧 None 💨 3 mph H 85%29.97 inHg

6:00 PM

Mostly cloudy

82° 💧 None 💨 4 mph H 33%29.91 inHg

Saturday

12:00 AM

Partly cloudy night

81° 💧 None 💨 6 mph H 33%29.83 inHg

6:00 AM

Overcast night

64° 💧 None 💨 5 mph H 70%29.88 inHg

12:00 PM

Light rain

61° 💧 None 💨 7 mph H 82%30.00 inHg

6:00 PM

Mostly cloudy

68° 💧 None 💨 4 mph H 69%29.94 inHg

Sunday

12:00 AM

Partly cloudy night

65° 💧 None 💨 4 mph H 83%29.85 inHg

6:00 AM

Mostly clear night

58° 💧 None 💨 1 mph H 96%29.88 inHg

12:00 PM

Overcast

55° 💧 None 💨 1 mph H 96%29.91 inHg

6:00 PM

Light rain

69° 💧 None 💨 3 mph H 48%29.94 inHg

Monday

12:00 AM

Clear night

71° 💧 None 💨 10 mph H 32%29.88 inHg

6:00 AM

Clear night

55° 💧 None 💨 4 mph H 68%30.09 inHg

12:00 PM

Sunny

49° 💧 None 💨 2 mph H 86%30.09 inHg

6:00 PM

Sunny

69° 💧 None 💨 2 mph H 44%30.00 inHg

Tuesday

12:00 AM

Clear night

73° 💧 None 💨 1 mph H 43%29.83 inHg

6:00 AM

Clear night

55° 💧 None 💨 2 mph H 77%30.00 inHg

12:00 PM

Sunny

49° 💧 None 💨 2 mph H 86%30.03 inHg

6:00 PM

Sunny

66° 💧 None 💨 3 mph H 51%29.97 inHg

Wednesday

12:00 AM

Clear night

71° 💧 None 💨 6 mph H 40%29.85 inHg

6:00 AM

Partly cloudy night

56° 💧 None 💨 5 mph H 76%30.00 inHg

12:00 PM

Mostly sunny

50° 💧 None 💨 3 mph H 92%30.03 inHg

6:00 PM

Overcast

67° 💧 None 💨 3 mph H 52%30.00 inHg

Thursday

12:00 AM

Clear night

74° 💧 None 💨 7 mph H 40%29.94 inHg

6:00 AM

Clear night

57° 💧 None 💨 3 mph H 84%30.12 inHg

12:00 PM

Mostly sunny

51° 💧 None 💨 3 mph H 97%30.24 inHg

6:00 PM

Sunny

69° 💧 None 💨 4 mph H 55%30.21 inHg

Friday

12:00 AM

Mostly clear night

73° 💧 None 💨 8 mph H 41%30.09 inHg

6:00 AM

Partly cloudy night

57° 💧 None 💨 4 mph H 83%30.18 inHg

12:00 PM

Mostly sunny

53° 💧 None 💨 3 mph H 95%30.18 inHg

6:00 PM

Sunny

72° 💧 None 💨 3 mph H 51%30.09 inHg

Saturday

12:00 AM

Clear night

80° 💧 None 💨 4 mph H 31%29.91 inHg

6:00 AM

Clear night

62° 💧 None 💨 5 mph H 69%30.03 inHg

12:00 PM

Sunny

55° 💧 None 💨 3 mph H 77%30.03 inHg

In Fort Collins and, more broadly, across the state of Colorado: This evening will be characterized by mostly cloudy skies with temperatures holding steady around 71 degrees. Light southwest winds, reaching up to 6 mph with gusts of 5 mph, will be present throughout the night. There is a high likelihood of rain, with an expected accumulation of about 0.04 inches. Conditions could bring a brief period of light rainfall over the next few hours. Temperatures are expected to remain mild during this time, making for a relatively comfortable evening. Residents should be prepared for the possibility of light rain, especially if planning outdoor activities. The weather pattern suggests the chance of rain will persist into the early hours, so a light raincoat or umbrella might be useful. Overall, expect a damp but mild night ahead.

15-Day Weather Outlook for Fort Collins

Sunday, Sep 13Sun Sep 13

Partly cloudy 92°/60° 💧 None 💨 12 mph

Monday, Sep 14Mon Sep 14

Light thunderstorms 89°/62° 💧 0.022 in 💨 10 mph

Tuesday, Sep 15Tue Sep 15

Partly cloudy 82°/58° 💧 0.011 in 💨 10 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 84°/57° 💧 0.001 in 💨 10 mph

Thursday, Sep 17Thu Sep 17

Light rain 77°/62° 💧 0.014 in 💨 7 mph

Friday, Sep 18Fri Sep 18

Overcast 77°/60° 💧 0.302 in 💨 3 mph

Saturday, Sep 19Sat Sep 19

Light rain 82°/61° 💧 0.013 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Mostly cloudy 68°/55° 💧 0.464 in 💨 4 mph

Monday, Sep 21Mon Sep 21

Light rain 71°/49° 💧 0.008 in 💨 10 mph

Tuesday, Sep 22Tue Sep 22

Sunny 73°/49° 💧 None 💨 2 mph

Wednesday, Sep 23Wed Sep 23

Partly cloudy 71°/50° 💧 None 💨 6 mph

Thursday, Sep 24Thu Sep 24

Overcast 74°/51° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 73°/53° 💧 None 💨 8 mph

Saturday, Sep 26Sat Sep 26

Sunny 80°/55° 💧 0.001 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Fort Collins

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Fort Collins

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 PM

PM2.5 Fine particles Good 1,3µg/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 2,4µg/m³

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

O₃ Ozone Good 51,9µg/m³

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

NO₂ Nitrogen dioxide Good 2,9µg/m³

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

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Fort Collins

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 7,8High 😊Good

Tomorrow UV 7,2High 🙂Fair

Sunday UV 7,6High 🙂Fair

Monday UV 4,6Moderate 😊Good

Tuesday UV 6,0High 😊Good

Wednesday UV 5,0Moderate —Unavailable

Thursday UV 7,0High —Unavailable

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

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

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

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Fort Collins

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · FORT COLLINS, COLORADO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:49 PM–5:05 AM

☁ Cloud cover 2% Real hourly forecast for the best viewing hour.

☾ Moonlight 0% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 87° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min81%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

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.

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Forecast data for Fort Collins were last refreshed today at 7:42 PM. The current forecast period extends through 13/09/2026 at 6:00 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.