Weather forecast for 10 daysMattawa, WA
Weather forecast for the weekend
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, in Mattawa, expect brilliant sunshine under mostly clear skies.
Predicted temperatures will peak at a comfortable 64.4°F and dip to a minimum of a frosty 42.8°F.
Today’s predicted high is set to be relatively higher than October's regular high 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.
Predicted temperatures will peak at a comfortable 64.4°F and dip to a minimum of a frosty 42.8°F.
Today’s predicted high is set to be relatively higher than October's regular high 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.
10-day overview
Daily temperatures
Warmest day: Tuesday 68°C.
Coldest day: Monday 26.10. 55°C.
Coldest day: Monday 26.10. 55°C.
Chance of precipitation
Highest chance: 16%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 36°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphNW 307°
- Humidity: 58%
- UV index: 0
- Sunrise: 7:20 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- 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 ▼
- Monday
- Oct 19, 2026
- 63°F
- 41°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphENE 63°
- Humidity: 43%
- UV index: 1
- Sunrise: 7:23 am PDT
- Sunset: 6:05 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 39°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphN 358°
- Humidity: 46%
- UV index: 3
- Sunrise: 7:24 am PDT
- Sunset: 6:03 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 41°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphENE 64°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:26 am PDT
- Sunset: 6:02 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 64°F
- 45°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 7mphWNW 295°
- Humidity: 58%
- UV index: 2
- Sunrise: 7:27 am PDT
- Sunset: 6:00 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 61°F
- 34°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphWNW 285°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:29 am PDT
- Sunset: 5:58 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 57°F
- 36°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphNNE 28°
- Humidity: 60%
- UV index: 2
- Sunrise: 7:30 am PDT
- Sunset: 5:56 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 57°F
- 36°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 6mphN 355°
- Humidity: 63%
- UV index: 2
- Sunrise: 7:32 am PDT
- Sunset: 5:55 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 55°F
- 36°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 4mphNNW 347°
- Humidity: 67%
- UV index: 2
- Sunrise: 7:33 am PDT
- Sunset: 5:53 pm PDT
- details ▼
Over the next ten days, conditions will reflect that a combination of cloudy and sun-filled weather is expected.
Rainfall is not forecasted in Mattawa in the upcoming days.
Temperature variation will be noticeable in the next ten days. Forecast highs will fluctuate between 55.4°F and 68°F, while nighttime temperatures are expected to vary from 33.8°F to 44.6°F.
The warmest day will be Tuesday, with a maximum of 68°F; the coldest day will be next Monday, with a maximum of 55.4°F.
Rainfall is not forecasted in Mattawa in the upcoming days.
Temperature variation will be noticeable in the next ten days. Forecast highs will fluctuate between 55.4°F and 68°F, while nighttime temperatures are expected to vary from 33.8°F to 44.6°F.
The warmest day will be Tuesday, with a maximum of 68°F; the coldest day will be next Monday, with a maximum of 55.4°F.
Updated: Oct 18, 2026 @ 00:19:56 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 Mattawa, mostly sunny and dry conditions will continue.
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 42.8°F.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. The lowest temperature will be in line with the average low of 43.7°F.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. The lowest temperature will be in line with the average low of 43.7°F.
On Sunday, in Mattawa, sunrise will be at 7:22 am and sunset at 6:07 pm (PDT).
Tomorrow, the daylight will last for 10h and 45min.
