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Current weather in Portland is clear sky.

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

Now · 2:56 AM

Portland Weather & Hourly Forecast

United States · Colorado · 81432

45°F

Clear night

Feels like: 40°F

💧 Humidity 77% 🌡 Pressure 30.00 inHg 💨 Wind 4 mph 👁 Visibility 30.2 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Portland

Today

3:00 AM

Clear night

45° 💧 None 💨 4 mph H 77%30.00 inHg

6:00 AM

Clear night

44° 💧 None 💨 4 mph H 79%30.03 inHg

9:00 AM

Partly cloudy

62° 💧 0.004 in 💨 0 mph H 43%30.09 inHg

12:00 PM

Mostly cloudy

71° 💧 0.006 in 💨 7 mph H 35%30.03 inHg

3:00 PM

Mostly cloudy

73° 💧 0.004 in 💨 7 mph H 28%29.97 inHg

6:00 PM

Partly cloudy

68° 💧 0.004 in 💨 6 mph H 34%29.97 inHg

9:00 PM

Mostly clear night

56° 💧 None 💨 3 mph H 56%30.03 inHg

Tomorrow

12:00 AM

Clear night

48° 💧 None 💨 4 mph H 77%30.03 inHg

3:00 AM

Clear night

47° 💧 None 💨 6 mph H 76%30.03 inHg

6:00 AM

Clear night

45° 💧 None 💨 5 mph H 81%30.06 inHg

9:00 AM

Sunny

64° 💧 0.002 in 💨 2 mph H 47%30.06 inHg

12:00 PM

Partly cloudy

73° 💧 0.005 in 💨 5 mph H 31%29.97 inHg

3:00 PM

Light thunderstorms

62° 💧 0.133 in 💨 5 mph H 78%30.00 inHg

6:00 PM

Mostly sunny

67° 💧 0.009 in 💨 1 mph H 48%29.91 inHg

9:00 PM

Mostly cloudy night

54° 💧 None 💨 4 mph H 73%29.94 inHg

Monday

12:00 AM

Partly cloudy night

52° 💧 None 💨 6 mph H 73%29.97 inHg

Today

3:00 AM

Clear night

45° 💧 None 💨 4 mph H 77%30.00 inHg

4:00 AM

Clear night

44° 💧 None 💨 4 mph H 78%30.03 inHg

5:00 AM

Clear night

44° 💧 None 💨 4 mph H 78%30.03 inHg

6:00 AM

Clear night

44° 💧 None 💨 4 mph H 79%30.03 inHg

7:00 AM

Mostly sunny

44° 💧 None 💨 5 mph H 79%30.06 inHg

8:00 AM

Sunny

52° 💧 None 💨 5 mph H 63%30.09 inHg

9:00 AM

Partly cloudy

62° 💧 None 💨 0 mph H 43%30.09 inHg

10:00 AM

Mostly sunny

66° 💧 0.002 in 💨 3 mph H 42%30.06 inHg

11:00 AM

Partly cloudy

69° 💧 0.003 in 💨 6 mph H 39%30.06 inHg

12:00 PM

Mostly cloudy

71° 💧 0.003 in 💨 7 mph H 35%30.03 inHg

1:00 PM

Mostly cloudy

72° 💧 0.001 in 💨 7 mph H 32%30.03 inHg

2:00 PM

Mostly cloudy

73° 💧 0.002 in 💨 7 mph H 30%30.00 inHg

3:00 PM

Mostly cloudy

73° 💧 0.001 in 💨 7 mph H 28%29.97 inHg

4:00 PM

Mostly cloudy

72° 💧 0.002 in 💨 7 mph H 30%29.94 inHg

5:00 PM

Partly cloudy

71° 💧 0.001 in 💨 7 mph H 31%29.94 inHg

6:00 PM

Partly cloudy

68° 💧 0.003 in 💨 6 mph H 34%29.97 inHg

7:00 PM

Partly cloudy

63° 💧 0.001 in 💨 2 mph H 47%29.97 inHg

8:00 PM

Mostly clear night

60° 💧 0.000 in 💨 2 mph H 48%30.00 inHg

9:00 PM

Mostly clear night

56° 💧 None 💨 3 mph H 56%30.03 inHg

10:00 PM

Clear night

52° 💧 None 💨 4 mph H 67%30.06 inHg

11:00 PM

Clear night

50° 💧 None 💨 4 mph H 74%30.06 inHg

Tomorrow

12:00 AM

Clear night

48° 💧 None 💨 4 mph H 77%30.03 inHg

1:00 AM

Clear night

47° 💧 None 💨 5 mph H 77%30.06 inHg

2:00 AM

Clear night

47° 💧 None 💨 6 mph H 76%30.03 inHg

3:00 AM

Clear night

47° 💧 None 💨 6 mph H 76%30.03 inHg

4:00 AM

Clear night

46° 💧 None 💨 6 mph H 76%30.03 inHg

5:00 AM

Clear night

46° 💧 None 💨 6 mph H 78%30.03 inHg

6:00 AM

Clear night

45° 💧 None 💨 5 mph H 81%30.06 inHg

7:00 AM

Sunny

44° 💧 None 💨 5 mph H 84%30.06 inHg

8:00 AM

Sunny

53° 💧 None 💨 6 mph H 65%30.09 inHg

9:00 AM

Sunny

64° 💧 None 💨 2 mph H 47%30.06 inHg

10:00 AM

Mostly sunny

67° 💧 0.000 in 💨 1 mph H 40%30.06 inHg

11:00 AM

Mostly sunny

70° 💧 0.001 in 💨 4 mph H 34%30.03 inHg

12:00 PM

Partly cloudy

73° 💧 0.002 in 💨 5 mph H 31%29.97 inHg

1:00 PM

Mostly cloudy

74° 💧 0.001 in 💨 5 mph H 30%29.94 inHg

2:00 PM

Strong thunderstorm

73° 💧 0.002 in 💨 5 mph H 31%29.91 inHg

3:00 PM

Light thunderstorms

62° 💧 0.087 in 💨 5 mph H 78%30.00 inHg

4:00 PM

Light thunderstorms

68° 💧 0.013 in 💨 1 mph H 43%29.91 inHg

5:00 PM

Light thunderstorms

63° 💧 0.033 in 💨 0 mph H 68%29.94 inHg

6:00 PM

Mostly sunny

67° 💧 0.003 in 💨 1 mph H 48%29.91 inHg

7:00 PM

Light rain

61° 💧 0.004 in 💨 1 mph H 64%29.91 inHg

8:00 PM

Mostly cloudy night

57° 💧 0.001 in 💨 2 mph H 68%29.94 inHg

9:00 PM

Mostly cloudy night

54° 💧 None 💨 4 mph H 73%29.94 inHg

10:00 PM

Overcast night

53° 💧 None 💨 5 mph H 73%29.97 inHg

11:00 PM

Mostly cloudy night

53° 💧 None 💨 6 mph H 72%29.97 inHg

Monday

12:00 AM

Partly cloudy night

52° 💧 None 💨 6 mph H 73%29.97 inHg

1:00 AM

Mostly clear night

50° 💧 None 💨 6 mph H 77%29.97 inHg

2:00 AM

Mostly cloudy night

50° 💧 None 💨 5 mph H 79%29.97 inHg

3:00 AM

Light rain

49° 💧 0.005 in 💨 4 mph H 82%29.97 inHg

4:00 AM

Light rain

48° 💧 0.004 in 💨 5 mph H 88%30.00 inHg

5:00 AM

Mostly cloudy night

48° 💧 0.003 in 💨 5 mph H 90%30.00 inHg

6:00 AM

Light rain

48° 💧 0.025 in 💨 4 mph H 94%30.00 inHg

7:00 AM

Light rain

47° 💧 0.017 in 💨 5 mph H 95%30.00 inHg

8:00 AM

Light rain

50° 💧 0.004 in 💨 5 mph H 94%30.03 inHg

9:00 AM

Light rain

54° 💧 0.027 in 💨 3 mph H 94%30.06 inHg

10:00 AM

Light rain

53° 💧 0.092 in 💨 2 mph H 92%30.09 inHg

11:00 AM

Light thunderstorms

58° 💧 0.038 in 💨 1 mph H 78%30.06 inHg

12:00 PM

Light thunderstorms

61° 💧 0.022 in 💨 1 mph H 68%30.03 inHg

1:00 PM

Light thunderstorms

58° 💧 0.041 in 💨 4 mph H 76%30.03 inHg

2:00 PM

Light rain

63° 💧 0.013 in 💨 3 mph H 57%29.97 inHg

3:00 PM

Light thunderstorms

63° 💧 0.016 in 💨 7 mph H 56%29.94 inHg

4:00 PM

Light thunderstorms

58° 💧 0.032 in 💨 6 mph H 75%29.97 inHg

5:00 PM

Light thunderstorms

61° 💧 0.017 in 💨 3 mph H 63%29.97 inHg

6:00 PM

Mostly sunny

61° 💧 0.001 in 💨 1 mph H 55%29.94 inHg

9:00 PM

Partly cloudy night

45° 💧 None 💨 4 mph H 90%30.06 inHg

Tuesday

12:00 AM

Mostly clear night

43° 💧 None 💨 5 mph H 90%30.09 inHg

3:00 AM

Light rain

41° 💧 None 💨 4 mph H 96%30.12 inHg

6:00 AM

Partly cloudy night

40° 💧 None 💨 4 mph H 97%30.12 inHg

9:00 AM

Partly cloudy

49° 💧 None 💨 4 mph H 88%30.18 inHg

12:00 PM

Moderate rain

55° 💧 None 💨 6 mph H 64%30.15 inHg

3:00 PM

Light rain

59° 💧 None 💨 6 mph H 54%30.06 inHg

6:00 PM

Light rain

56° 💧 None 💨 5 mph H 56%30.03 inHg

9:00 PM

Partly cloudy night

46° 💧 None 💨 4 mph H 83%30.12 inHg

Wednesday

12:00 AM

Partly cloudy night

44° 💧 None 💨 5 mph H 91%30.18 inHg

3:00 AM

Mostly clear night

42° 💧 None 💨 4 mph H 96%30.18 inHg

6:00 AM

Partly cloudy night

42° 💧 None 💨 4 mph H 96%30.21 inHg

9:00 AM

Partly cloudy

50° 💧 None 💨 5 mph H 83%30.21 inHg

12:00 PM

Light rain

58° 💧 None 💨 6 mph H 51%30.15 inHg

3:00 PM

Partly cloudy

60° 💧 None 💨 6 mph H 50%30.06 inHg

6:00 PM

Light rain

51° 💧 None 💨 1 mph H 81%30.15 inHg

9:00 PM

Partly cloudy night

46° 💧 None 💨 4 mph H 87%30.18 inHg

Thursday

12:00 AM

Partly cloudy night

44° 💧 None 💨 5 mph H 93%30.21 inHg

3:00 AM

Light rain

41° 💧 None 💨 4 mph H 95%30.21 inHg

6:00 AM

Partly cloudy night

42° 💧 None 💨 3 mph H 94%30.24 inHg

9:00 AM

Mostly sunny

48° 💧 None 💨 5 mph H 83%30.27 inHg

12:00 PM

Mostly sunny

57° 💧 None 💨 8 mph H 46%30.18 inHg

3:00 PM

Mostly sunny

58° 💧 None 💨 10 mph H 42%30.12 inHg

6:00 PM

Mostly sunny

54° 💧 None 💨 7 mph H 48%30.18 inHg

Friday

12:00 AM

Clear night

39° 💧 None 💨 2 mph H 89%30.30 inHg

6:00 AM

Mostly clear night

33° 💧 None 💨 2 mph H 96%30.30 inHg

12:00 PM

Sunny

55° 💧 None 💨 4 mph H 41%30.27 inHg

6:00 PM

Sunny

52° 💧 None 💨 4 mph H 40%30.24 inHg

Saturday

12:00 AM

Clear night

40° 💧 None 💨 1 mph H 60%30.27 inHg

6:00 AM

Clear night

38° 💧 None 💨 2 mph H 60%30.24 inHg

12:00 PM

Sunny

58° 💧 None 💨 7 mph H 27%30.24 inHg

6:00 PM

Sunny

54° 💧 None 💨 6 mph H 27%30.21 inHg

Sunday

12:00 AM

Clear night

38° 💧 None 💨 3 mph H 62%30.27 inHg

6:00 AM

Clear night

36° 💧 None 💨 2 mph H 53%30.24 inHg

12:00 PM

Sunny

57° 💧 None 💨 6 mph H 28%30.24 inHg

6:00 PM

Partly cloudy

55° 💧 None 💨 6 mph H 33%30.15 inHg

Monday

12:00 AM

Partly cloudy night

46° 💧 None 💨 0 mph H 44%30.18 inHg

6:00 AM

Mostly clear night

45° 💧 None 💨 0 mph H 31%30.15 inHg

12:00 PM

Mostly sunny

61° 💧 None 💨 5 mph H 22%30.12 inHg

6:00 PM

Sunny

59° 💧 None 💨 5 mph H 24%30.03 inHg

Tuesday

12:00 AM

Clear night

46° 💧 None 💨 2 mph H 40%30.06 inHg

6:00 AM

Clear night

39° 💧 None 💨 3 mph H 49%30.03 inHg

12:00 PM

Sunny

63° 💧 None 💨 7 mph H 22%30.06 inHg

6:00 PM

Partly cloudy

59° 💧 None 💨 6 mph H 28%30.00 inHg

Wednesday

12:00 AM

Partly cloudy night

45° 💧 None 💨 3 mph H 49%30.06 inHg

6:00 AM

Clear night

41° 💧 None 💨 3 mph H 61%30.12 inHg

12:00 PM

Mostly sunny

60° 💧 None 💨 9 mph H 33%30.15 inHg

6:00 PM

Mostly cloudy

59° 💧 None 💨 5 mph H 32%30.09 inHg

Thursday

12:00 AM

Clear night

45° 💧 None 💨 2 mph H 57%30.18 inHg

6:00 AM

Mostly cloudy night

41° 💧 None 💨 3 mph H 62%30.21 inHg

12:00 PM

Mostly cloudy

63° 💧 None 💨 3 mph H 28%30.24 inHg

6:00 PM

Mostly cloudy

59° 💧 None 💨 2 mph H 32%30.21 inHg

Friday

12:00 AM

Mostly cloudy night

45° 💧 None 💨 1 mph H 61%30.30 inHg

6:00 AM

Overcast night

44° 💧 None 💨 3 mph H 55%30.30 inHg

12:00 PM

Light rain

63° 💧 None 💨 4 mph H 29%30.33 inHg

6:00 PM

Mostly sunny

55° 💧 None 💨 2 mph H 55%30.33 inHg

Saturday

12:00 AM

Clear night

41° 💧 None 💨 3 mph H 76%30.33 inHg

6:00 AM

Clear night

40° 💧 None 💨 4 mph H 63%30.33 inHg

12:00 PM

Partly cloudy

63° 💧 None 💨 3 mph H 24%30.30 inHg

6:00 PM

Partly cloudy

59° 💧 None 💨 4 mph H 31%30.24 inHg

In Portland 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 Portland

TomorrowTomorrow

Strong thunderstorm 74°/44° 💧 None 💨 6 mph

Monday, Sep 14Mon Sep 14

Light thunderstorms 67°/47° 💧 None 💨 7 mph

Tuesday, Sep 15Tue Sep 15

Heavy rain 61°/38° 💧 0.167 in 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Light rain 61°/39° 💧 0.228 in 💨 4 mph

Thursday, Sep 17Thu Sep 17

Light rain 59°/42° 💧 0.094 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Moderate rain 50°/40° 💧 1.015 in 💨 4 mph

Saturday, Sep 19Sat Sep 19

Light rain 58°/39° 💧 0.153 in 💨 5 mph

Sunday, Sep 20Sun Sep 20

Light rain 54°/37° 💧 0.057 in 💨 6 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 50°/32° 💧 0.002 in 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Partly cloudy 54°/37° 💧 0.001 in 💨 5 mph

Wednesday, Sep 23Wed Sep 23

Overcast 56°/32° 💧 0.028 in 💨 5 mph

Thursday, Sep 24Thu Sep 24

Light rain 55°/39° 💧 0.058 in 💨 3 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 59°/35° 💧 0.001 in 💨 4 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 61°/38° 💧 0.007 in 💨 3 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Portland

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Portland

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 3:00 AM

PM2.5 Fine particles Good 1,6µg/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 2,7µg/m³

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

O₃ Ozone Good 49,5µg/m³

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

NO₂ Nitrogen dioxide Good 1,4µg/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 Portland

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 9,4Very high 😊Good

Tomorrow UV 9,3Very high 🙂Fair

Monday UV 8,9Very high 🙂Fair

Tuesday UV 4,0Moderate 🙂Fair

Wednesday UV 3,0Moderate 😊Good

Thursday UV 4,0Moderate —Unavailable

Friday UV 4,0Moderate —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,4 9:00 AMUV 1,6 10:00 AMUV 3,7 11:00 AMUV 6,2 12:00 PMUV 8,4 1:00 PMUV 9,4 2:00 PMUV 8,9 3:00 PMUV 6,8 4:00 PMUV 4,1 5:00 PMUV 2,1 6:00 PMUV 0,7

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.

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.

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 Portland

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · PORTLAND, COLORADO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 8:55 PM–5:20 AM

☁ Cloud cover 0% 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 67° 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 min79%

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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Portland were last refreshed today at 2:56 AM. The current forecast period extends through 14/09/2026 at 12:00 AM. 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.