Weather forecast for tomorrowStartup, WA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 61°F
- 45°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphNNW 328°
- Humidity: 72%
- UV index: 3
- Sunrise: 7:31 am PDT
- Sunset: 6:13 pm PDT
- details ▼
Tomorrow, mostly clear skies and sunshine will create ideal daytime conditions.
Temperature is anticipated to swing from a high of an enjoyable 60.8°F to a low of a chilly 44.6°F.
With a forecast of 60.8°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise will be at 7:31 am and sunset at 6:13 pm; tomorrow's daylight will last for 10h and 42min.
Temperature is anticipated to swing from a high of an enjoyable 60.8°F to a low of a chilly 44.6°F.
With a forecast of 60.8°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise will be at 7:31 am and sunset at 6:13 pm; tomorrow's daylight will last for 10h and 42min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 59°C.
Coldest hour: 6 am 41°C.
Coldest hour: 6 am 41°C.
Chance of precipitation
Highest chance: 6%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:46°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphENE 76°
- Humidity: 93%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:45°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphE 84°
- Humidity: 94%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 43°F
- Feels like:43°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphENE 76°
- Humidity: 92%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphENE 71°
- Humidity: 93%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:31 am
- 8 am
- 41°F
- Feels like:41°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphENE 73°
- Humidity: 91%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:50°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphNE 41°
- Humidity: 76%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 55°F
- Feels like:55°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphWNW 295°
- Humidity: 64%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 2 pm
- 59°F
- Feels like:59°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphWNW 293°
- Humidity: 61%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphWNW 303°
- Humidity: 62%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 54°F
- Feels like:54°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphNW 306°
- Humidity: 75%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:13 pm
- 8 pm
- 50°F
- Feels like:50°F
Mostly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 1mphNNW 337°
- Humidity: 87%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:48°F
Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphNNE 34°
- Humidity: 86%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, primarily cloud-filled and occasionally sunny weather is predicted.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 59°F. The warmest part of the day will be from 2 pm to 4 pm.
The highest temperature is more resembling September's average maximum of 66.4°F than October's usual of 54.5°F. The lowest temperature tomorrow will be a few degrees higher than the standard minimum for October.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 59°F. The warmest part of the day will be from 2 pm to 4 pm.
The highest temperature is more resembling September's average maximum of 66.4°F than October's usual of 54.5°F. The lowest temperature tomorrow will be a few degrees higher than the standard minimum for October.
Updated: Oct 17, 2026 @ 18:21:41 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, mostly sunny skies are expected.
Tomorrow, the highest temperature will be 60.8°F, while the lowest temperature will be 44.6°F.
Tomorrow, the highest temperature will be moderately higher than the average maximum temperature in October. Tomorrow, the lowest temperature will be also a few degrees higher than the average low temperature.
Tomorrow, the highest temperature will be moderately higher than the average maximum temperature in October. Tomorrow, the lowest temperature will be also a few degrees higher than the average low temperature.
On Sunday, in Startup, sunrise will be at 7:31 am and sunset at 6:13 pm (PDT).
Tomorrow, the daylight will last for 10h and 42min.
