Weather forecast for tomorrowCoulee Dam, WA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 41°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphNE 49°
- Humidity: 43%
- UV index: 3
- Sunrise: 7:20 am PDT
- Sunset: 6:01 pm PDT
- details ▼
Tomorrow, sunshine will lead the day, with clouds making only brief appearances.
The highest temperature will be a breezy 64.4°F, while the lowest forecasted temperature is an icy 41°F.
Tomorrow, the anticipated high temperature will be slightly warmer than the average October peak of 56.3°F.
Sunrise will be at 7:20 am and sunset at 6:01 pm; tomorrow's daylight will last for 10h and 42min.
The highest temperature will be a breezy 64.4°F, while the lowest forecasted temperature is an icy 41°F.
Tomorrow, the anticipated high temperature will be slightly warmer than the average October peak of 56.3°F.
Sunrise will be at 7:20 am and sunset at 6:01 pm; tomorrow's daylight will last for 10h and 42min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 63°C.
Coldest hour: 6 am 34°C.
Coldest hour: 6 am 34°C.
Chance of precipitation
Highest chance: 6 am 3%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:39°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphWNW 303°
- Humidity: 57%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 39°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphNW 317°
- Humidity: 65%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 36°F
- Feels like:32°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphNNW 326°
- Humidity: 70%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 34°F
- Feels like:30°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphNNW 339°
- Humidity: 76%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:20 am
- 8 am
- 34°F
- Feels like:30°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 3mphN 350°
- Humidity: 81%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 46°F
- Feels like:45°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNNE 16°
- Humidity: 51%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 54°F
- Feels like:54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNNE 31°
- Humidity: 36%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphE 96°
- Humidity: 26%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 63°F
- Feels like:63°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphE 93°
- Humidity: 23%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 57°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphE 86°
- Humidity: 28%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:01 pm
- 8 pm
- 50°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphN 2°
- Humidity: 41%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:43°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphN 10°
- Humidity: 53%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of gloomy and dry and sunny weather is anticipated.
The temperature will be between the lowest temperature of 32°F and the highest temperature of 62.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The forecasted high will be relatively higher than the typical October maximum of 56.3°F. Tomorrow, the lowest temperature will be also comparable to October's usual minimum.
The temperature will be between the lowest temperature of 32°F and the highest temperature of 62.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The forecasted high will be relatively higher than the typical October maximum of 56.3°F. Tomorrow, the lowest temperature will be also comparable to October's usual minimum.
Updated: Oct 17, 2026 @ 23:48:00 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
On Sunday, in Coulee Dam, a pleasant, mostly sunny outlook is in place.
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 41°F.
The maximum temperature tomorrow will be a couple of degrees 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 a couple of degrees higher than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Coulee Dam, sunrise will be at 7:20 am and sunset at 6:01 pm (PDT).
In Coulee Dam, tomorrow, there will be 10h and 42min of daylight.
