Weather forecast for tomorrowMattawa, WA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 43°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphN 10°
- Humidity: 43%
- UV index: 3
- Sunrise: 7:22 am PDT
- Sunset: 6:07 pm PDT
- details ▼
Tomorrow, on Sunday, predominantly sunny weather will make for pleasant outdoor conditions.
Temperature span will be from a high of a comfortable 64.4°F to a low of a chilly 42.8°F.
The high temperature will be a couple of degrees higher than the typical October level of 60.1°F.
Sunrise will be at 7:22 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 45min.
Temperature span will be from a high of a comfortable 64.4°F to a low of a chilly 42.8°F.
The high temperature will be a couple of degrees higher than the typical October level of 60.1°F.
Sunrise will be at 7:22 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 45min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 12 am - 6 am 1%.
Hourly weather forecast
- 12 am
- 48°F
- Feels like:45°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphWNW 302°
- Humidity: 64%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:41°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphWNW 301°
- Humidity: 68%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:37°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphNW 309°
- Humidity: 73%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:36°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphNW 324°
- Humidity: 76%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:22 am
- 8 am
- 37°F
- Feels like:34°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphNNW 329°
- Humidity: 75%
- 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: 4mphN 353°
- Humidity: 51%
- 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: 3mphNNE 17°
- Humidity: 35%
- 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: 3mphNE 34°
- Humidity: 28%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphNE 54°
- Humidity: 27%
- 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: 2mphN 350°
- Humidity: 35%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:07 pm
- 8 pm
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNW 321°
- Humidity: 50%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 46°F
- Feels like:45°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNW 319°
- Humidity: 52%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of dry and sunny and cloudy weather is anticipated.
The temperature will vary between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the forecasted high will be a couple of degrees higher than October's typical peak temperature. The lowest temperature is also consistent with October's typical minimum of 43.7°F.
The temperature will vary between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
Tomorrow, the forecasted high will be a couple of degrees higher than October's typical peak temperature. The lowest temperature is also consistent with October's typical minimum of 43.7°F.
Updated: Oct 17, 2026 @ 23:14:19 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, sunshine will lead the day, with clouds making only brief appearances.
Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 42.8°F.
The highest temperature will be a few degrees higher than the average maximum of 60.1°F in October. The lowest temperature tomorrow will be in line with the average low temperature.
The highest temperature will be a few degrees higher than the average maximum of 60.1°F in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Mattawa, sunrise will be at 7:22 am and sunset at 6:07 pm (PDT).
In Mattawa, tomorrow, there will be 10h and 45min of daylight.
