Weather forecast for 10 daysHappy Valley, OR

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 66°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphNNE 15°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:29 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
On Saturday, in Happy Valley, expect partly sunny skies with periods of cloudiness.
Temperature readings will span from a daytime high of a breezy 66.2°F to a night low of an icy 39.2°F.
Today's forecasted high will be a few degrees higher than the typical October high of 61.9°F.
Sunrise was at 7:29 am and sunset will be at 6:21 pm; the daylight will last for 10h and 52min.

Sunday Oct 18, 2026

  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 7mphN 8°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:30 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
Tomorrow, on Sunday, expect a mix of sun and clouds throughout the day.
Temperatures will oscillate between a delightful 68°F at their highest and a chilly 46.4°F at their lowest.
The highest temperature is expected to be moderately higher than the average October peak of 61.9°F.
Sunrise will be at 7:30 am and sunset at 6:19 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.

Chance of precipitation

Highest chance: Saturday 24.10. 33%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 66°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphNNE 15°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:29 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 7mphN 8°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:30 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 63°F
  • 43°F
Cloudy
Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 4mphSSW 207°
  • Humidity: 64%
  • UV index: 2
  • Sunrise: 7:32 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 8mphNNE 30°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 72°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphNNE 21°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:34 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 61°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 5mphSSW 211°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 7:36 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 59°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 5mphSSW 212°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 7:37 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 57°F
  • 43°F
PM Showers
PM Showers
  • Precip. probability: 33%
  • Precipitation: 0.16"
  • Wind: 5mphE 79°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:38 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 59°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphENE 70°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:40 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 59°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 5mphE 91°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:41 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
Models point to a combination of primarily dull and occasionally dry and sunny and showery weather is predicted.
With a probability of 33%, rainfall is predicted only for next Saturday. The precipitation will be light at 0.16".
Noticeable swings in temperature are expected in the upcoming period. The maximum temperature will vary between 57.2°F and 71.6°F, while the lowest temperature will be between 39.2°F and 46.4°F.
With a maximum temperature of 71.6°F, Tuesday and Wednesday will be the warmest days in Happy Valley; the lowest daytime temperature of the period will be reached on next Saturday, peaking at 57.2°F.
Updated: Oct 17, 2026 @ 20:59:19 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Happy Valley, a partly cloudy outlook will keep the sky interesting throughout the day.

Today, the maximum temperature in Happy Valley will be 66.2°F, while the minimum temperature will be 39.2°F.
The maximum temperature today will be moderately higher than the average highest temperature in October. The lowest temperature today will be also slightly cooler than the average low temperature.

On Saturday, in Happy Valley, sunrise was at 7:29 am and sunset will be at 6:21 pm (PDT).

Today, the daylight will last for 10h and 52min.

Tomorrow, clouds will come and go, but expect bright periods in between.

Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 46.4°F.
Tomorrow, the highest temperature will be a couple of degrees higher than the average maximum temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Happy Valley, sunrise will be at 7:30 am and sunset at 6:19 pm (PDT).

Tomorrow, the daylight will last for 10h and 49min.