Weather forecast for 10 daysHappy Valley, OR
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 46°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 7mphN 7°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:30 am PDT
- Sunset: 6:19 pm PDT
- details ▼
Tomorrow, on Sunday, a partly cloudy outlook will keep the sky interesting throughout the day.
The anticipated temperature range extends from a high of an enjoyable 66.2°F to a low of a frosty 46.4°F.
The temperature for tomorrow is forecasted to be relatively higher than the October average 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.
The anticipated temperature range extends from a high of an enjoyable 66.2°F to a low of a frosty 46.4°F.
The temperature for tomorrow is forecasted to be relatively higher than the October average 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 70°C.
Coldest day: Saturday 24.10. 55°C.
Coldest day: Saturday 24.10. 55°C.
Chance of precipitation
Highest chance: Friday - Sunday 24%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 37°F
Mostly Clear
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 6mphNNE 18°
- Humidity: 85%
- UV index: 0
- Sunrise: 7:29 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Sunday
- Oct 18, 2026
- 66°F
- 46°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 7mphN 7°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:30 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 61°F
- 43°F
Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSE 134°
- Humidity: 63%
- UV index: 2
- Sunrise: 7:32 am PDT
- Sunset: 6:17 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 43°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 10mphNE 38°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:33 am PDT
- Sunset: 6:16 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 43°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphNNE 23°
- Humidity: 53%
- UV index: 3
- Sunrise: 7:34 am PDT
- Sunset: 6:14 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 61°F
- 43°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 6mphSSW 213°
- Humidity: 70%
- UV index: 2
- Sunrise: 7:36 am PDT
- Sunset: 6:12 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 5mphSSW 198°
- Humidity: 70%
- UV index: 3
- Sunrise: 7:37 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 55°F
- 43°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0.04"
- Wind: 7mphE 81°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:38 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 57°F
- 43°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 7mphE 92°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:40 am PDT
- Sunset: 6:07 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 6mphESE 107°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:41 am PDT
- Sunset: 6:06 pm PDT
- details ▼
Forecasts for the ten-day outlook show that primarily cloud-filled and occasionally mostly clear weather is expected.
With a 24% probability, rainfall is predicted only for next Saturday. Anticipated precipitation will be minimal at 0.04".
The temperature will vary considerably in the next ten days. Highs will range from 55.4°F to 69.8°F, while nighttime temperatures are expected to vary from 37.4°F to 46.4°F.
With a maximum temperature of 69.8°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 55.4°F.
With a 24% probability, rainfall is predicted only for next Saturday. Anticipated precipitation will be minimal at 0.04".
The temperature will vary considerably in the next ten days. Highs will range from 55.4°F to 69.8°F, while nighttime temperatures are expected to vary from 37.4°F to 46.4°F.
With a maximum temperature of 69.8°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 55.4°F.
Updated: Oct 18, 2026 @ 03:47:37 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 Happy Valley, moderate cloud cover will mix with sunshine throughout the day.
Tomorrow, the highest temperature in Happy Valley will be 66.2°F, while the lowest temperature will be 46.4°F.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
The maximum temperature tomorrow will be relatively higher than the average highest 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).
In Happy Valley, the length of the day tomorrow will be 10h and 49min.
