Weather forecast for 10 daysLake Oswego, OR
Weather forecast for the weekend
Sunday Oct 18, 2026
- 68°F
- 48°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 6mphN 1°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:31 am PDT
- Sunset: 6:20 pm PDT
- details ▼
On Sunday, October 18, expect a partly sunny afternoon with variable cloud cover.
Temperature span will be from a high of a pleasant 68°F to a low of a brisk 48.2°F.
The expected high will be a few degrees higher than October's standard temperature of 61.9°F.
Sunrise will be at 7:31 am and sunset at 6:20 pm; tomorrow's daylight will last for 10h and 49min.
Temperature span will be from a high of a pleasant 68°F to a low of a brisk 48.2°F.
The expected high will be a few degrees higher than October's standard temperature of 61.9°F.
Sunrise will be at 7:31 am and sunset at 6:20 pm; tomorrow's daylight will last for 10h and 49min.
10-day overview
Daily temperatures
Warmest period: Tuesday - Wednesday 72°C.
Coldest day: Saturday 24.10. 57°C.
Coldest day: Saturday 24.10. 57°C.
Chance of precipitation
Highest chance: Friday - Sunday 24%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 41°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 6mphN 355°
- Humidity: 77%
- UV index: 0
- Sunrise: 7:30 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Sunday
- Oct 18, 2026
- 68°F
- 48°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 6mphN 1°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:31 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 46°F
Mostly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 4mphSW 230°
- Humidity: 62%
- UV index: 2
- Sunrise: 7:32 am PDT
- Sunset: 6:18 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 72°F
- 45°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 9mphNNE 17°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:34 am PDT
- Sunset: 6:16 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 45°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphN 3°
- Humidity: 55%
- UV index: 3
- Sunrise: 7:35 am PDT
- Sunset: 6:15 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 45°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 6mphSW 236°
- Humidity: 70%
- UV index: 2
- Sunrise: 7:36 am PDT
- Sunset: 6:13 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 61°F
- 43°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 4mphWSW 254°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:38 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 57°F
- 45°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0.08"
- Wind: 6mphENE 73°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:39 am PDT
- Sunset: 6:10 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 59°F
- 45°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 7mphE 90°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:40 am PDT
- Sunset: 6:08 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 61°F
- 43°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 5mphESE 111°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:42 am PDT
- Sunset: 6:07 pm PDT
- details ▼
Conditions over the next ten days suggest that primarily cloud-filled and occasionally dry and sunny weather is forecasted.
With a probability of 24%, rainfall is predicted only for next Saturday. Expected precipitation will be minimal at 0.08".
Noticeable swings in temperature are expected in the upcoming days. The temperature is expected to swing from 57.2°F up to 71.6°F, while nighttime temperatures are expected to vary from 41°F to 48.2°F.
With a maximum temperature of 71.6°F, Tuesday and Wednesday will be the warmest days in Lake Oswego; with the highest temperature of 57.2°F, next Saturday will be the coldest day.
With a probability of 24%, rainfall is predicted only for next Saturday. Expected precipitation will be minimal at 0.08".
Noticeable swings in temperature are expected in the upcoming days. The temperature is expected to swing from 57.2°F up to 71.6°F, while nighttime temperatures are expected to vary from 41°F to 48.2°F.
With a maximum temperature of 71.6°F, Tuesday and Wednesday will be the warmest days in Lake Oswego; with the highest temperature of 57.2°F, next Saturday will be the coldest day.
Updated: Oct 18, 2026 @ 01:40:52 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, in Lake Oswego, clouds and sunshine will alternate throughout the day.
Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 48.2°F.
The maximum temperature will be moderately higher than the average highest temperature of 61.9°F in October. The lowest temperature tomorrow will be in line with the average low temperature.
The maximum temperature will be moderately higher than the average highest temperature of 61.9°F in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Lake Oswego, sunrise will be at 7:31 am and sunset at 6:20 pm (PDT).
In Lake Oswego, the length of the day tomorrow will be 10h and 49min.
