Weather forecast for tomorrowSunnyside, WA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 37°F
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
- details ▼
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.
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.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 63°C.
Coldest hour: 6 am 36°C.
Coldest hour: 6 am 36°C.
Chance of precipitation
Highest chance: 3 am 4%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:43°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphW 281°
- Humidity: 76%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 39°F
- Feels like:39°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 1mphWNW 292°
- Humidity: 84%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 37°F
- Feels like:37°F
Mostly Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 1mphNNW 338°
- Humidity: 86%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 36°F
- Feels like:36°F
Mostly Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 1mphN 2°
- Humidity: 91%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:21 am
- 8 am
- 34°F
- Feels like:34°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 1mphS 178°
- Humidity: 96%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 48°F
- Feels like:48°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphW 278°
- Humidity: 62%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 57°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphSSW 203°
- Humidity: 42%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphESE 111°
- Humidity: 33%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphENE 57°
- Humidity: 31%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphNE 50°
- Humidity: 36%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:08 pm
- 8 pm
- 46°F
- Feels like:46°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphNNE 15°
- Humidity: 56%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 43°F
- Feels like:43°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphN 349°
- Humidity: 61%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of cloud-filled and bright weather is expected.
The temperature will be between a minimum of 33.8°F and a maximum of 64.4°F. The warmest part of the day is expected around 4 pm.
Tomorrow, the temperature is expected to be slightly warmer than October's normal maximum of 60.1°F. Forecast models suggest a low more in line with November's typical minimum of 33.6°F than October's usual 44.1°F.
The temperature will be between a minimum of 33.8°F and a maximum of 64.4°F. The warmest part of the day is expected around 4 pm.
Tomorrow, the temperature is expected to be slightly warmer than October's normal maximum of 60.1°F. Forecast models suggest a low more in line with November's typical minimum of 33.6°F than October's usual 44.1°F.
Updated: Oct 17, 2026 @ 15:12:07 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 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.
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.
