See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
13°
Mostly Clear
Feels Like: 13°
Min: 11°
Max: 19°
The next few hours will be overcast, with today reaching 19°C and dropping to 11°C. The coming days will be clear throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:56
Sunrise
19:14
Sunset
Moon
Waxing Crescent
12:11
Moonrise
20:35
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Lake Oswego.
Resources
UV Index
Humidity
Weather in Lake Oswego today, September 15, 2026
Expect a muted, overcast feel in Lake Oswego on September 15, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. The first half of the day looks overcast, as cloud amounts reach about 100% around 02:00. Brighter weather, if it comes, waits until later.
The temperature range runs from about 11°C up to 19°C. Expect humidity between 59% and 90%, most humid near 04:00. Airflow remains manageable, reaching about 1.7 km/h around 16:00.
The afternoon keeps an overcast feel, as cloud reaches about 96% around 15:00. Outdoor plans may still want a flexible backup. Horizontal visibility holds close to 16.1 km. The sun rises at 06:56 and sets at 19:14, for a total of 12 hours 18 minutes of sunlight today.
In short, cloud leads the story in Lake Oswego on September 15, 2026; expect limited sun and a peak around 19°C.
Frequently asked questions about weather in Lake Oswego
How warm does it get in Lake Oswego?
The warmest month in Lake Oswego is August, with average high temperatures of 30°C. The average temperature during this period is around 21°C.
How cold does it get in Lake Oswego?
The coldest month in Lake Oswego is February, with average low temperatures of 3°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Lake Oswego?
The wettest month in Lake Oswego is December, with an average of 198mm of precipitation.
What is the driest time of year in Lake Oswego?
The driest month in Lake Oswego is July, with an average of 6mm of precipitation.
Explore more weather forecasts
- Oak Grove, Oregon
- New York City, New York
- Milwaukie, Oregon
- Los Angeles, California
- Oatfield, Oregon
- Brooklyn, New York
- Gladstone, Oregon
- Chicago, Illinois
- West Linn, Oregon
- Houston, Texas
- Tigard, Oregon
- Queens, New York
- Tualatin, Oregon
- Phoenix, Arizona
- Oregon City, Oregon
- Philadelphia, Pennsylvania
