Weather forecast for 10 daysSunnyside, WA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 72°F
  • 32°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphW 264°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:20 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
On Saturday, October 17, a cloudy morning is expected, followed by brighter skies in the afternoon.
Dramatic changes in temperature are forecasted, reaching a high of a pleasant 71.6°F and falling to a low of a wintry 32°F.
Weather conditions lean warmer, with the temperature tracking September's average high of 75.4°F.
Sunrise was at 7:20 am and sunset will be at 6:10 pm; the daylight will last for 10h and 50min.

Sunday Oct 18, 2026

  • 64°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphESE 117°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:21 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
Tomorrow, on Sunday, mostly clear skies and sunshine will create ideal daytime conditions.
The daytime temperature will peak at a breezy 64.4°F, significantly contrasting with the night's low of an icy 37.4°F.
Tomorrow's forecasted high will be relatively higher than the typical October high of 60.1°F.
Sunrise will be at 7:21 am and sunset at 6:08 pm; tomorrow's daylight will last for 10h and 46min.

10-day overview

Daily temperatures

Warmest day: today 72°C.
Coldest period: Saturday - Monday 55°C.

Chance of precipitation

Highest chance: Saturday 24.10. 17%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 72°F
  • 32°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphW 264°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:20 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphESE 117°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:21 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 63°F
  • 37°F
Cloudy
Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphS 177°
  • Humidity: 49%
  • UV index: 1
  • Sunrise: 7:23 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphNNW 346°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:24 am PDT
  • Sunset: 6:04 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphSE 146°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:26 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphS 185°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:27 am PDT
  • Sunset: 6:01 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 61°F
  • 30°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphW 270°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 7:28 am PDT
  • Sunset: 5:59 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 4mphENE 65°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 7:30 am PDT
  • Sunset: 5:58 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 55°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 4mphN 354°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 7:31 am PDT
  • Sunset: 5:56 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 55°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 4mphSSW 206°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 7:33 am PDT
  • Sunset: 5:54 pm PDT
  • ▼
In the days ahead, a combination of overcast and clear weather is expected.
Rainfall is not forecasted in Sunnyside in the upcoming days.
Temperature variation will be noticeable in the upcoming period. Maximum temperatures are forecasted between 55.4°F and 71.6°F, while the low temperature range extends from 30.2°F to 39.2°F.
The warmest day is today, with a maximum temperature of 71.6°F; the coldest days will be next Saturday through next Monday, with a maximum of 55.4°F.
Updated: Oct 17, 2026 @ 15:12:07 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, the morning will be gray and overcast, but skies will clear gradually, leading to a pleasant afternoon.

Today, the highest temperature will be 71.6°F, while the lowest temperature will be 32°F.
Today, the highest temperature will be notably higher than the average maximum of 60.1°F in October. Today, the lowest temperature will be also noticeably lower than the average low of 44.1°F.

On Saturday, in Sunnyside, sunrise was at 7:20 am and sunset will be at 6:10 pm (PDT).

Today, the daylight will last for 10h and 50min.

Tomorrow, in Sunnyside, clear skies with only minor cloud interruptions are in the outlook.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 37.4°F.
Tomorrow, the maximum temperature will be moderately higher than the average highest temperature in October. The lowest temperature will be also slightly cooler than the average low of 44.1°F.

On Sunday, in Sunnyside, sunrise will be at 7:21 am and sunset at 6:08 pm (PDT).

In Sunnyside, tomorrow, there will be 10h and 46min of daylight.