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Current weather in Portland is few clouds.

Where can I find the hourly weather forecast for Portland?

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

Is the weather forecast for Portland updated regularly?

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

Now · 11:24 PM

Portland Weather & Hourly Forecast

United States · Oregon · 97203

56°F

Mostly clear night

Feels like: 54°F

💧 Humidity 92% 🌡 Pressure 30.15 inHg 💨 Wind 7 mph 👁 Visibility 16.4 mi ☁ Clouds 16% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Portland

Tomorrow

12:00 AM

Partly cloudy night

56° 💧 0.000 in 💨 6 mph H 94%30.15 inHg

3:00 AM

Partly cloudy night

56° 💧 None 💨 7 mph H 94%30.15 inHg

6:00 AM

Mist at night

55° 💧 0.000 in 💨 6 mph H 93%30.15 inHg

9:00 AM

Mostly cloudy

58° 💧 0.001 in 💨 5 mph H 84%30.18 inHg

12:00 PM

Partly cloudy

65° 💧 0.000 in 💨 2 mph H 61%30.15 inHg

3:00 PM

Partly cloudy

68° 💧 None 💨 3 mph H 48%30.09 inHg

6:00 PM

Sunny

67° 💧 None 💨 5 mph H 52%30.06 inHg

9:00 PM

Mostly cloudy night

62° 💧 None 💨 5 mph H 71%30.06 inHg

Tuesday

12:00 AM

Mostly cloudy night

57° 💧 None 💨 2 mph H 88%30.03 inHg

3:00 AM

Mostly cloudy night

55° 💧 None 💨 4 mph H 92%30.03 inHg

6:00 AM

Overcast night

54° 💧 0.002 in 💨 2 mph H 93%30.03 inHg

9:00 AM

Overcast

57° 💧 0.005 in 💨 3 mph H 84%30.03 inHg

12:00 PM

Light rain

62° 💧 0.005 in 💨 3 mph H 67%30.03 inHg

3:00 PM

Mostly cloudy

66° 💧 None 💨 4 mph H 58%30.00 inHg

6:00 PM

Partly cloudy

65° 💧 None 💨 3 mph H 59%29.97 inHg

9:00 PM

Mostly clear night

60° 💧 0.000 in 💨 5 mph H 77%30.03 inHg

Tomorrow

12:00 AM

Partly cloudy night

56° 💧 None 💨 6 mph H 94%30.15 inHg

1:00 AM

Mostly cloudy night

56° 💧 None 💨 6 mph H 95%30.15 inHg

2:00 AM

Mostly cloudy night

56° 💧 0.000 in 💨 6 mph H 94%30.15 inHg

3:00 AM

Partly cloudy night

56° 💧 None 💨 7 mph H 94%30.15 inHg

4:00 AM

Partly cloudy night

56° 💧 None 💨 8 mph H 93%30.15 inHg

5:00 AM

Mostly cloudy night

56° 💧 None 💨 7 mph H 92%30.15 inHg

6:00 AM

Mist at night

55° 💧 None 💨 6 mph H 93%30.15 inHg

7:00 AM

Partly cloudy

55° 💧 0.000 in 💨 6 mph H 93%30.15 inHg

8:00 AM

Mist

57° 💧 None 💨 6 mph H 88%30.18 inHg

9:00 AM

Mostly cloudy

58° 💧 None 💨 5 mph H 84%30.18 inHg

10:00 AM

Partly cloudy

60° 💧 0.000 in 💨 5 mph H 77%30.18 inHg

11:00 AM

Partly cloudy

63° 💧 0.001 in 💨 3 mph H 68%30.15 inHg

12:00 PM

Partly cloudy

65° 💧 0.000 in 💨 2 mph H 61%30.15 inHg

1:00 PM

Partly cloudy

67° 💧 None 💨 2 mph H 55%30.12 inHg

2:00 PM

Mostly cloudy

68° 💧 None 💨 2 mph H 51%30.12 inHg

3:00 PM

Partly cloudy

68° 💧 None 💨 3 mph H 48%30.09 inHg

4:00 PM

Sunny

68° 💧 None 💨 4 mph H 47%30.09 inHg

5:00 PM

Sunny

68° 💧 None 💨 5 mph H 49%30.06 inHg

6:00 PM

Sunny

67° 💧 None 💨 5 mph H 52%30.06 inHg

7:00 PM

Mostly cloudy

65° 💧 None 💨 2 mph H 61%30.06 inHg

8:00 PM

Partly cloudy night

63° 💧 None 💨 2 mph H 66%30.06 inHg

9:00 PM

Mostly cloudy night

62° 💧 None 💨 5 mph H 71%30.06 inHg

10:00 PM

Mostly cloudy night

60° 💧 None 💨 4 mph H 80%30.06 inHg

11:00 PM

Mostly cloudy night

58° 💧 None 💨 2 mph H 87%30.06 inHg

Tuesday

12:00 AM

Mostly cloudy night

57° 💧 None 💨 2 mph H 88%30.03 inHg

1:00 AM

Mostly cloudy night

56° 💧 None 💨 2 mph H 89%30.03 inHg

2:00 AM

Mostly cloudy night

56° 💧 None 💨 2 mph H 90%30.03 inHg

3:00 AM

Mostly cloudy night

55° 💧 None 💨 4 mph H 92%30.03 inHg

4:00 AM

Mostly cloudy night

55° 💧 None 💨 3 mph H 92%30.03 inHg

5:00 AM

Overcast night

54° 💧 None 💨 3 mph H 93%30.00 inHg

6:00 AM

Overcast night

54° 💧 None 💨 2 mph H 93%30.03 inHg

7:00 AM

Mostly cloudy

54° 💧 0.001 in 💨 1 mph H 93%30.03 inHg

8:00 AM

Overcast

55° 💧 0.001 in 💨 3 mph H 89%30.03 inHg

9:00 AM

Overcast

57° 💧 0.000 in 💨 3 mph H 84%30.03 inHg

10:00 AM

Overcast

57° 💧 None 💨 2 mph H 82%30.03 inHg

11:00 AM

Light rain

58° 💧 0.005 in 💨 2 mph H 79%30.03 inHg

12:00 PM

Light rain

62° 💧 0.005 in 💨 3 mph H 67%30.03 inHg

1:00 PM

Mostly cloudy

63° 💧 None 💨 4 mph H 64%30.03 inHg

2:00 PM

Mostly cloudy

64° 💧 None 💨 3 mph H 61%30.00 inHg

3:00 PM

Mostly cloudy

66° 💧 None 💨 4 mph H 58%30.00 inHg

4:00 PM

Partly cloudy

65° 💧 None 💨 3 mph H 58%29.97 inHg

5:00 PM

Mostly sunny

65° 💧 None 💨 3 mph H 59%29.97 inHg

6:00 PM

Partly cloudy

65° 💧 None 💨 3 mph H 59%29.97 inHg

7:00 PM

Partly cloudy

64° 💧 None 💨 2 mph H 65%30.00 inHg

8:00 PM

Partly cloudy night

62° 💧 None 💨 5 mph H 69%30.00 inHg

9:00 PM

Mostly clear night

60° 💧 None 💨 5 mph H 77%30.03 inHg

10:00 PM

Clear night

59° 💧 0.000 in 💨 4 mph H 83%30.03 inHg

11:00 PM

Clear night

57° 💧 None 💨 3 mph H 87%30.03 inHg

Wednesday

12:00 AM

Clear night

57° 💧 None 💨 2 mph H 88%30.03 inHg

1:00 AM

Clear night

56° 💧 None 💨 3 mph H 90%30.06 inHg

2:00 AM

Clear night

55° 💧 None 💨 4 mph H 93%30.06 inHg

3:00 AM

Mostly clear night

54° 💧 None 💨 4 mph H 94%30.06 inHg

4:00 AM

Mostly clear night

54° 💧 None 💨 3 mph H 95%30.06 inHg

5:00 AM

Partly cloudy night

53° 💧 None 💨 3 mph H 96%30.06 inHg

6:00 AM

Fog at night

52° 💧 None 💨 3 mph H 97%30.09 inHg

7:00 AM

Fog

52° 💧 None 💨 4 mph H 95%30.09 inHg

8:00 AM

Mostly sunny

54° 💧 None 💨 5 mph H 92%30.12 inHg

9:00 AM

Sunny

57° 💧 None 💨 5 mph H 84%30.12 inHg

10:00 AM

Sunny

62° 💧 None 💨 6 mph H 70%30.09 inHg

11:00 AM

Sunny

67° 💧 None 💨 7 mph H 56%30.09 inHg

12:00 PM

Sunny

71° 💧 None 💨 8 mph H 50%30.09 inHg

1:00 PM

Sunny

73° 💧 None 💨 9 mph H 46%30.06 inHg

2:00 PM

Sunny

75° 💧 None 💨 10 mph H 43%30.03 inHg

3:00 PM

Sunny

76° 💧 None 💨 9 mph H 42%30.03 inHg

4:00 PM

Sunny

77° 💧 None 💨 9 mph H 42%30.00 inHg

5:00 PM

Sunny

76° 💧 None 💨 8 mph H 44%30.00 inHg

8:00 PM

Clear night

68° 💧 None 💨 7 mph H 61%30.00 inHg

11:00 PM

Clear night

64° 💧 None 💨 5 mph H 71%30.03 inHg

Thursday

2:00 AM

Clear night

59° 💧 None 💨 4 mph H 83%30.00 inHg

5:00 AM

Clear night

56° 💧 None 💨 3 mph H 88%30.00 inHg

8:00 AM

Sunny

59° 💧 None 💨 4 mph H 83%30.03 inHg

11:00 AM

Sunny

71° 💧 None 💨 4 mph H 54%30.00 inHg

2:00 PM

Sunny

81° 💧 None 💨 3 mph H 34%29.97 inHg

5:00 PM

Sunny

82° 💧 None 💨 7 mph H 34%29.97 inHg

8:00 PM

Clear night

72° 💧 None 💨 3 mph H 57%30.00 inHg

11:00 PM

Clear night

65° 💧 None 💨 1 mph H 77%30.03 inHg

Friday

2:00 AM

Clear night

60° 💧 None 💨 1 mph H 85%30.06 inHg

5:00 AM

Mostly clear night

56° 💧 None 💨 2 mph H 94%30.09 inHg

8:00 AM

Partly cloudy

56° 💧 None 💨 2 mph H 92%30.15 inHg

11:00 AM

Mostly sunny

64° 💧 None 💨 2 mph H 67%30.15 inHg

2:00 PM

Sunny

72° 💧 None 💨 2 mph H 49%30.12 inHg

5:00 PM

Sunny

75° 💧 None 💨 3 mph H 39%30.09 inHg

8:00 PM

Clear night

68° 💧 None 💨 7 mph H 61%30.09 inHg

11:00 PM

Mostly clear night

59° 💧 None 💨 3 mph H 84%30.12 inHg

Saturday

2:00 AM

Partly cloudy night

56° 💧 None 💨 3 mph H 93%30.12 inHg

5:00 AM

Partly cloudy night

55° 💧 None 💨 2 mph H 93%30.12 inHg

8:00 AM

Mostly sunny

57° 💧 None 💨 3 mph H 85%30.15 inHg

11:00 AM

Partly cloudy

64° 💧 None 💨 4 mph H 59%30.15 inHg

5:00 PM

Overcast

62° 💧 None 💨 2 mph H 67%30.12 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 2 mph H 46%30.06 inHg

Sunday

5:00 AM

Clear night

57° 💧 None 💨 3 mph H 82%30.12 inHg

11:00 AM

Mostly sunny

52° 💧 None 💨 4 mph H 93%30.09 inHg

5:00 PM

Mostly sunny

61° 💧 None 💨 4 mph H 69%30.09 inHg

11:00 PM

Clear night

79° 💧 None 💨 6 mph H 38%29.91 inHg

Monday

5:00 AM

Clear night

63° 💧 None 💨 4 mph H 74%29.91 inHg

11:00 AM

Mostly cloudy

58° 💧 None 💨 4 mph H 77%29.85 inHg

5:00 PM

Mostly sunny

72° 💧 None 💨 2 mph H 43%29.85 inHg

11:00 PM

Overcast night

79° 💧 None 💨 6 mph H 37%29.83 inHg

Tuesday

5:00 AM

Mostly cloudy night

62° 💧 None 💨 4 mph H 76%29.94 inHg

11:00 AM

Overcast

59° 💧 None 💨 3 mph H 79%29.94 inHg

5:00 PM

Overcast

64° 💧 None 💨 1 mph H 67%29.94 inHg

11:00 PM

Mostly clear night

71° 💧 None 💨 4 mph H 38%29.88 inHg

Wednesday

5:00 AM

Overcast night

60° 💧 None 💨 4 mph H 60%29.94 inHg

11:00 AM

Mostly sunny

55° 💧 None 💨 6 mph H 81%29.94 inHg

5:00 PM

Mostly sunny

61° 💧 None 💨 9 mph H 60%29.97 inHg

11:00 PM

Mostly clear night

64° 💧 None 💨 9 mph H 43%29.94 inHg

Thursday

5:00 AM

Mostly cloudy night

55° 💧 None 💨 7 mph H 76%30.00 inHg

11:00 AM

Light rain

51° 💧 None 💨 9 mph H 90%30.03 inHg

5:00 PM

Overcast

56° 💧 None 💨 8 mph H 84%30.09 inHg

11:00 PM

Mostly clear night

65° 💧 None 💨 3 mph H 55%30.09 inHg

Friday

5:00 AM

Mostly cloudy night

54° 💧 None 💨 3 mph H 87%30.09 inHg

11:00 AM

Mostly cloudy

51° 💧 None 💨 4 mph H 97%30.06 inHg

5:00 PM

Partly cloudy

65° 💧 None 💨 6 mph H 53%30.00 inHg

11:00 PM

Mostly clear night

76° 💧 None 💨 4 mph H 39%29.94 inHg

Saturday

5:00 AM

Partly cloudy night

61° 💧 None 💨 5 mph H 59%30.00 inHg

11:00 AM

Overcast

59° 💧 None 💨 5 mph H 62%30.00 inHg

5:00 PM

Mostly cloudy

74° 💧 None 💨 7 mph H 35%30.00 inHg

11:00 PM

Mostly cloudy night

81° 💧 None 💨 6 mph H 29%29.97 inHg

Sunday

5:00 AM

Mostly cloudy night

67° 💧 None 💨 6 mph H 48%30.00 inHg

11:00 AM

Sunny

61° 💧 None 💨 6 mph H 61%29.97 inHg

5:00 PM

Mostly sunny

76° 💧 None 💨 2 mph H 34%29.97 inHg

11:00 PM

Overcast night

83° 💧 None 💨 3 mph H 29%29.94 inHg

Monday

5:00 AM

Overcast night

65° 💧 None 💨 7 mph H 67%30.03 inHg

11:00 AM

Overcast

60° 💧 None 💨 3 mph H 75%30.03 inHg

In Portland and, more broadly, across the state of Oregon: The evening will be mostly cloudy with temperatures holding steady around 45 to 46 degrees Fahrenheit. Light southwest winds will prevail, reaching up to 3 mph with gusts up to 5 mph. There is a slight chance of light rain, with about 0.01 inches possible, though the likelihood remains low at around 20 percent. Conditions are expected to remain cool and relatively calm over the next few hours, with no significant weather events anticipated.

15-Day Weather Outlook for Portland

TomorrowTomorrow

Mostly sunny 67°/53° 💧 None 💨 5 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 65°/54° 💧 None 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 76°/54° 💧 0.070 in 💨 10 mph

Thursday, Sep 17Thu Sep 17

Sunny 82°/56° 💧 None 💨 7 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 75°/56° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Overcast 72°/55° 💧 0.137 in 💨 4 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 79°/52° 💧 0.001 in 💨 6 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 79°/58° 💧 None 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Overcast 71°/59° 💧 0.007 in 💨 4 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 64°/55° 💧 0.046 in 💨 9 mph

Thursday, Sep 24Thu Sep 24

Light rain 65°/51° 💧 0.100 in 💨 9 mph

Friday, Sep 25Fri Sep 25

Mostly cloudy 76°/51° 💧 None 💨 6 mph

Saturday, Sep 26Sat Sep 26

Partly cloudy 81°/59° 💧 None 💨 7 mph

Sunday, Sep 27Sun Sep 27

Mostly cloudy 83°/61° 💧 None 💨 6 mph

Monday, Sep 28Mon Sep 28

Overcast 65°/60° 💧 None 💨 7 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 12:00 AM

PM2.5 Fine particles Good 0,7µg/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 1,2µg/m³

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

O₃ Ozone Good 17,1µg/m³

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

NO₂ Nitrogen dioxide Good 3,0µg/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 2,0Low —Unavailable

Tomorrow UV 5,4Moderate 🙂Fair

Tuesday UV 5,0Moderate 🙂Fair

Wednesday UV 5,4Moderate 🙂Fair

Thursday UV 7,0High 😐Moderate

Friday UV 7,0High —Unavailable

Saturday UV 7,0High —Unavailable

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

Low UV risk

UV radiation will be low, although basic protection is still advisable during prolonged exposure.

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.

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 Portland

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · PORTLAND, OREGON

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

61/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 9:07 PM–5:06 AM

☁ Cloud cover 49% Real hourly forecast for the best viewing hour.

☾ Moonlight 7% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 79° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min63%

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 11:24 PM. The current forecast period extends through 15/09/2026 at 9:00 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.