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Current weather in Lake Oswego is clear sky.

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

Now · 2:14 PM

Lake Oswego Weather & Hourly Forecast

United States · Oregon · 97034

68°F

Sunny

Feels like: 68°F

💧 Humidity 60% 🌡 Pressure 30.00 inHg 💨 Wind 1 mph 👁 Visibility 9.4 mi ☁ Clouds 12% ☀️ UV index 4.7 · Moderate 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Lake Oswego

Today

3:00 PM

Light rain

69° 💧 0.009 in 💨 1 mph H 56%30.00 inHg

6:00 PM

Mostly cloudy

67° 💧 0.000 in 💨 3 mph H 58%30.00 inHg

9:00 PM

Mostly cloudy night

60° 💧 None 💨 2 mph H 82%30.00 inHg

Tomorrow

12:00 AM

Partly cloudy night

56° 💧 None 💨 3 mph H 91%30.00 inHg

3:00 AM

Overcast night

54° 💧 0.058 in 💨 2 mph H 94%30.00 inHg

6:00 AM

Light rain

53° 💧 0.017 in 💨 3 mph H 99%30.03 inHg

9:00 AM

Overcast

57° 💧 0.000 in 💨 1 mph H 94%30.03 inHg

12:00 PM

Overcast

64° 💧 None 💨 1 mph H 68%30.03 inHg

3:00 PM

Mostly sunny

68° 💧 0.005 in 💨 2 mph H 62%30.00 inHg

6:00 PM

Partly cloudy

68° 💧 0.018 in 💨 5 mph H 60%30.00 inHg

9:00 PM

Mostly clear night

60° 💧 0.002 in 💨 3 mph H 92%30.03 inHg

Monday

12:00 AM

Clear night

56° 💧 None 💨 2 mph H 98%30.06 inHg

3:00 AM

Mostly cloudy night

53° 💧 None 💨 1 mph H 99%30.09 inHg

6:00 AM

Fog at night

53° 💧 None 💨 0 mph H 99%30.12 inHg

9:00 AM

Partly cloudy

57° 💧 0.003 in 💨 1 mph H 91%30.15 inHg

12:00 PM

Overcast

62° 💧 0.005 in 💨 2 mph H 70%30.15 inHg

Today

3:00 PM

Light rain

69° 💧 0.005 in 💨 1 mph H 56%30.00 inHg

4:00 PM

Mostly sunny

68° 💧 0.001 in 💨 3 mph H 56%30.00 inHg

5:00 PM

Partly cloudy

68° 💧 0.003 in 💨 3 mph H 57%29.97 inHg

6:00 PM

Mostly cloudy

67° 💧 0.000 in 💨 3 mph H 58%30.00 inHg

7:00 PM

Partly cloudy

65° 💧 None 💨 2 mph H 69%30.00 inHg

8:00 PM

Mostly cloudy night

61° 💧 None 💨 2 mph H 78%30.00 inHg

9:00 PM

Mostly cloudy night

60° 💧 None 💨 2 mph H 82%30.00 inHg

10:00 PM

Partly cloudy night

59° 💧 None 💨 1 mph H 84%30.00 inHg

11:00 PM

Mostly clear night

57° 💧 None 💨 2 mph H 88%30.00 inHg

Tomorrow

12:00 AM

Partly cloudy night

56° 💧 None 💨 3 mph H 91%30.00 inHg

1:00 AM

Overcast night

55° 💧 None 💨 3 mph H 93%30.00 inHg

2:00 AM

Overcast night

55° 💧 None 💨 4 mph H 93%30.00 inHg

3:00 AM

Overcast night

54° 💧 None 💨 2 mph H 94%30.00 inHg

4:00 AM

Light rain

54° 💧 0.020 in 💨 1 mph H 94%30.00 inHg

5:00 AM

Light rain

54° 💧 0.038 in 💨 1 mph H 96%30.00 inHg

6:00 AM

Light rain

53° 💧 0.012 in 💨 3 mph H 99%30.03 inHg

7:00 AM

Overcast

53° 💧 0.003 in 💨 1 mph H 98%30.03 inHg

8:00 AM

Mostly cloudy

55° 💧 0.002 in 💨 2 mph H 99%30.03 inHg

9:00 AM

Overcast

57° 💧 0.000 in 💨 1 mph H 94%30.03 inHg

10:00 AM

Mostly cloudy

59° 💧 None 💨 1 mph H 85%30.03 inHg

11:00 AM

Overcast

63° 💧 None 💨 1 mph H 72%30.03 inHg

12:00 PM

Overcast

64° 💧 None 💨 1 mph H 68%30.03 inHg

1:00 PM

Mostly cloudy

65° 💧 None 💨 1 mph H 66%30.00 inHg

2:00 PM

Mostly sunny

66° 💧 None 💨 2 mph H 65%30.00 inHg

3:00 PM

Mostly sunny

68° 💧 0.000 in 💨 2 mph H 62%30.00 inHg

4:00 PM

Mostly sunny

69° 💧 0.002 in 💨 2 mph H 60%30.00 inHg

5:00 PM

Mostly sunny

69° 💧 0.003 in 💨 3 mph H 58%29.97 inHg

6:00 PM

Partly cloudy

68° 💧 0.004 in 💨 5 mph H 60%30.00 inHg

7:00 PM

Light rain

64° 💧 0.009 in 💨 3 mph H 77%30.00 inHg

8:00 PM

Light rain

61° 💧 0.005 in 💨 3 mph H 88%30.03 inHg

9:00 PM

Mostly clear night

60° 💧 0.002 in 💨 3 mph H 92%30.03 inHg

10:00 PM

Mostly clear night

58° 💧 None 💨 4 mph H 96%30.06 inHg

11:00 PM

Mostly clear night

57° 💧 None 💨 3 mph H 98%30.06 inHg

Monday

12:00 AM

Clear night

56° 💧 None 💨 2 mph H 98%30.06 inHg

1:00 AM

Partly cloudy night

55° 💧 None 💨 2 mph H 97%30.06 inHg

2:00 AM

Partly cloudy night

54° 💧 None 💨 1 mph H 97%30.09 inHg

3:00 AM

Mostly cloudy night

53° 💧 None 💨 1 mph H 99%30.09 inHg

4:00 AM

Mostly cloudy night

53° 💧 None 💨 0 mph H 99%30.09 inHg

5:00 AM

Mist at night

53° 💧 None 💨 0 mph H 99%30.12 inHg

6:00 AM

Fog at night

53° 💧 None 💨 0 mph H 99%30.12 inHg

7:00 AM

Fog

54° 💧 None 💨 1 mph H 98%30.15 inHg

8:00 AM

Fog

55° 💧 None 💨 1 mph H 96%30.15 inHg

9:00 AM

Partly cloudy

57° 💧 None 💨 1 mph H 91%30.15 inHg

10:00 AM

Mostly cloudy

58° 💧 0.001 in 💨 2 mph H 82%30.18 inHg

11:00 AM

Overcast

60° 💧 0.003 in 💨 3 mph H 75%30.18 inHg

12:00 PM

Overcast

62° 💧 0.002 in 💨 2 mph H 70%30.15 inHg

1:00 PM

Overcast

64° 💧 0.002 in 💨 3 mph H 67%30.15 inHg

2:00 PM

Mostly cloudy

65° 💧 0.000 in 💨 3 mph H 61%30.12 inHg

3:00 PM

Overcast

67° 💧 0.000 in 💨 1 mph H 57%30.12 inHg

4:00 PM

Mostly cloudy

68° 💧 None 💨 1 mph H 54%30.12 inHg

5:00 PM

Partly cloudy

68° 💧 None 💨 3 mph H 54%30.09 inHg

6:00 PM

Sunny

67° 💧 None 💨 4 mph H 56%30.09 inHg

7:00 PM

Sunny

65° 💧 None 💨 3 mph H 66%30.09 inHg

8:00 PM

Mostly clear night

62° 💧 None 💨 2 mph H 74%30.09 inHg

9:00 PM

Clear night

60° 💧 None 💨 3 mph H 80%30.12 inHg

10:00 PM

Clear night

59° 💧 None 💨 4 mph H 82%30.12 inHg

11:00 PM

Clear night

58° 💧 None 💨 4 mph H 87%30.12 inHg

Tuesday

12:00 AM

Clear night

57° 💧 None 💨 3 mph H 90%30.12 inHg

1:00 AM

Clear night

56° 💧 None 💨 3 mph H 92%30.12 inHg

2:00 AM

Clear night

55° 💧 None 💨 4 mph H 93%30.12 inHg

3:00 AM

Clear night

55° 💧 None 💨 4 mph H 95%30.12 inHg

4:00 AM

Clear night

54° 💧 None 💨 4 mph H 96%30.12 inHg

5:00 AM

Partly cloudy night

54° 💧 None 💨 4 mph H 98%30.15 inHg

8:00 AM

Overcast

55° 💧 None 💨 5 mph H 96%30.18 inHg

11:00 AM

Mostly sunny

63° 💧 None 💨 5 mph H 74%30.18 inHg

2:00 PM

Sunny

72° 💧 None 💨 6 mph H 55%30.12 inHg

5:00 PM

Sunny

75° 💧 None 💨 8 mph H 51%30.09 inHg

8:00 PM

Clear night

67° 💧 None 💨 8 mph H 65%30.09 inHg

11:00 PM

Clear night

62° 💧 None 💨 6 mph H 77%30.12 inHg

Wednesday

2:00 AM

Clear night

59° 💧 None 💨 5 mph H 86%30.12 inHg

5:00 AM

Clear night

56° 💧 None 💨 5 mph H 90%30.12 inHg

8:00 AM

Sunny

59° 💧 None 💨 5 mph H 88%30.15 inHg

11:00 AM

Sunny

71° 💧 None 💨 4 mph H 59%30.12 inHg

2:00 PM

Sunny

81° 💧 None 💨 4 mph H 41%30.09 inHg

5:00 PM

Sunny

82° 💧 None 💨 5 mph H 37%30.03 inHg

8:00 PM

Clear night

71° 💧 None 💨 3 mph H 68%30.03 inHg

11:00 PM

Clear night

64° 💧 None 💨 3 mph H 88%30.06 inHg

Thursday

2:00 AM

Mostly cloudy night

60° 💧 None 💨 3 mph H 88%30.06 inHg

5:00 AM

Partly cloudy night

56° 💧 None 💨 2 mph H 92%30.09 inHg

8:00 AM

Partly cloudy

59° 💧 None 💨 4 mph H 85%30.09 inHg

11:00 AM

Overcast

66° 💧 None 💨 4 mph H 75%30.09 inHg

2:00 PM

Overcast

70° 💧 None 💨 4 mph H 66%30.06 inHg

5:00 PM

Overcast

69° 💧 None 💨 6 mph H 67%30.03 inHg

8:00 PM

Overcast night

65° 💧 None 💨 8 mph H 60%30.03 inHg

11:00 PM

Mostly cloudy night

59° 💧 None 💨 5 mph H 75%30.06 inHg

Friday

2:00 AM

Overcast night

56° 💧 None 💨 4 mph H 83%30.06 inHg

5:00 AM

Clear night

54° 💧 None 💨 3 mph H 90%30.06 inHg

11:00 AM

Partly cloudy

62° 💧 None 💨 5 mph H 62%30.12 inHg

5:00 PM

Partly cloudy

70° 💧 None 💨 4 mph H 41%30.09 inHg

11:00 PM

Clear night

56° 💧 None 💨 2 mph H 83%30.15 inHg

Saturday

5:00 AM

Mostly cloudy night

52° 💧 None 💨 2 mph H 95%30.15 inHg

11:00 AM

Mostly sunny

62° 💧 None 💨 4 mph H 66%30.15 inHg

5:00 PM

Sunny

74° 💧 None 💨 7 mph H 42%30.00 inHg

11:00 PM

Clear night

62° 💧 None 💨 6 mph H 70%30.00 inHg

Sunday

5:00 AM

Clear night

57° 💧 None 💨 6 mph H 74%29.97 inHg

11:00 AM

Sunny

74° 💧 None 💨 8 mph H 35%29.94 inHg

5:00 PM

Sunny

84° 💧 None 💨 7 mph H 23%29.85 inHg

11:00 PM

Clear night

66° 💧 None 💨 4 mph H 58%29.91 inHg

Monday

5:00 AM

Clear night

56° 💧 None 💨 1 mph H 82%29.94 inHg

11:00 AM

Sunny

70° 💧 None 💨 2 mph H 53%30.00 inHg

5:00 PM

Mostly sunny

82° 💧 None 💨 1 mph H 31%29.91 inHg

11:00 PM

Clear night

66° 💧 None 💨 1 mph H 72%29.97 inHg

Tuesday

5:00 AM

Overcast night

56° 💧 None 💨 4 mph H 92%30.03 inHg

11:00 AM

Overcast

62° 💧 None 💨 4 mph H 71%30.06 inHg

5:00 PM

Mostly sunny

73° 💧 None 💨 0 mph H 49%30.00 inHg

11:00 PM

Clear night

62° 💧 None 💨 6 mph H 79%30.06 inHg

Wednesday

5:00 AM

Partly cloudy night

54° 💧 None 💨 1 mph H 98%30.06 inHg

11:00 AM

Overcast

61° 💧 None 💨 1 mph H 76%30.12 inHg

5:00 PM

Sunny

75° 💧 None 💨 2 mph H 42%30.06 inHg

11:00 PM

Clear night

62° 💧 None 💨 5 mph H 76%30.15 inHg

Thursday

5:00 AM

Clear night

55° 💧 None 💨 2 mph H 93%30.18 inHg

11:00 AM

Mostly sunny

65° 💧 None 💨 2 mph H 64%30.24 inHg

5:00 PM

Sunny

75° 💧 None 💨 3 mph H 43%30.15 inHg

11:00 PM

Clear night

62° 💧 None 💨 5 mph H 76%30.21 inHg

Friday

5:00 AM

Mostly clear night

55° 💧 None 💨 4 mph H 95%30.21 inHg

11:00 AM

Mostly sunny

65° 💧 None 💨 4 mph H 65%30.21 inHg

5:00 PM

Sunny

77° 💧 None 💨 5 mph H 39%30.06 inHg

11:00 PM

Clear night

60° 💧 None 💨 4 mph H 79%30.12 inHg

Saturday

5:00 AM

Mostly cloudy night

56° 💧 None 💨 5 mph H 91%30.09 inHg

11:00 AM

Mostly cloudy

62° 💧 None 💨 6 mph H 69%30.09 inHg

5:00 PM

Sunny

75° 💧 None 💨 7 mph H 44%29.94 inHg

11:00 PM

Clear night

59° 💧 None 💨 4 mph H 84%29.97 inHg

Sunday

5:00 AM

Mostly cloudy night

54° 💧 None 💨 3 mph H 94%30.00 inHg

In Lake Oswego and, more broadly, across the state of Oregon: This afternoon, mostly cloudy skies will persist with temperatures ranging from the mid-50s to low 50s. Light east winds at around 4 mph, with gusts up to 6 mph, will be noticeable but gentle. There is a high likelihood of rain, with an expected total accumulation of about 0.22 inches. Overall, expect cool conditions for the rest of the day, with the possibility of occasional showers. It’s advisable to carry an umbrella if planning outdoor activities. The weather remains quite stable, but the steady rain could lead to damp conditions later on. Temperatures will stay within the low to mid-50s through the afternoon, making for a cool day overall.

15-Day Weather Outlook for Lake Oswego

TomorrowTomorrow

Partly cloudy 69°/53° 💧 None 💨 4 mph

Monday, Sep 7Mon Sep 7

Mostly sunny 69°/53° 💧 None 💨 5 mph

Tuesday, Sep 8Tue Sep 8

Overcast 72°/54° 💧 0.105 in 💨 6 mph

Wednesday, Sep 9Wed Sep 9

Sunny 81°/56° 💧 None 💨 8 mph

Thursday, Sep 10Thu Sep 10

Overcast 82°/56° 💧 0.004 in 💨 5 mph

Friday, Sep 11Fri Sep 11

Partly cloudy 69°/54° 💧 0.005 in 💨 8 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 70°/52° 💧 0.002 in 💨 4 mph

Sunday, Sep 13Sun Sep 13

Sunny 74°/57° 💧 None 💨 8 mph

Monday, Sep 14Mon Sep 14

Sunny 84°/56° 💧 None 💨 7 mph

Tuesday, Sep 15Tue Sep 15

Overcast 82°/56° 💧 0.002 in 💨 4 mph

Wednesday, Sep 16Wed Sep 16

Overcast 73°/54° 💧 None 💨 6 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 75°/55° 💧 None 💨 5 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 75°/55° 💧 None 💨 5 mph

Saturday, Sep 19Sat Sep 19

Mostly cloudy 77°/56° 💧 0.003 in 💨 6 mph

Sunday, Sep 20Sun Sep 20

Mostly cloudy 75°/54° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Lake Oswego

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Lake Oswego

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 3:00 PM

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 1,1µg/m³

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

O₃ Ozone Fair 65,5µg/m³

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

NO₂ Nitrogen dioxide Good 0,4µg/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 Lake Oswego

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 4,9Moderate 🙂Fair

Tomorrow UV 2,2Low 🙂Fair

Monday UV 5,5Moderate 🙂Fair

Tuesday UV 5,7Moderate 🙂Fair

Wednesday UV 6,1High 🙂Fair

Thursday UV 7,0High —Unavailable

Friday UV 6,0High —Unavailable

Hourly UV index today

3:00 PMUV 3,8 4:00 PMUV 2,6 5:00 PMUV 1,4 6:00 PMUV 0,5 7:00 PMUV 0,1

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

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.

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 Lake Oswego

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · LAKE OSWEGO, OREGON

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 11:00 PM–12:00 AM.

84/100Best-hour score

BEST TIME TONIGHT 11:00 PM–12:00 AM Astronomical darkness: 9:25 PM–4:54 AM

☁ Cloud cover 20% Real hourly forecast for the best viewing hour.

☾ Moonlight 32% Last Quarter · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 24° high at the best hour.

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

Chance ≥1 meteor in 30 min44%

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

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

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

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 Lake Oswego were last refreshed today at 2:14 PM. The current forecast period extends through 07/09/2026 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.