Weather forecast for 10 days
Mattawa, WA

Weather forecast for the weekend

Saturday, May 3.

Cloudy / Wind
5:38 am

8:14 pm
PDT
Cloudy / Wind
66°F / 43°F
  • Wind: 22mph WNW
  • Humidity: 43%
  • Precip. probability: 17%
  • Precipitation: 0"
  • UV index: 4
On Saturday, May 3, expect low clouds and strong gusts of wind.
Temperatures will oscillate between a breezy 66.2°F at their highest and a chilly 42.8°F at their lowest.
Tomorrow's temperature peak is set to be a couple of degrees lower than the typical May high of 71.2°F.
Sunrise will be at 5:38 am and sunset at 8:14 pm; tomorrow's daylight will last for 14h and 35min.

Sunday, May 4.

Mostly Sunny
5:37 am

8:15 pm
PDT
Mostly Sunny
68°F / 45°F
  • Wind: 13mph NW
  • Humidity: 30%
  • Precip. probability: 0%
  • Precipitation: 0"
  • UV index: 6
On Sunday, May 4, sunshine will prevail for most of the day.
The maximum temperature will be a delightful 68°F, while the minimum predicted temperature is a brisk 44.6°F.
The expected high temperature will align with May's average of 71.2°F.
Sunrise will be at 5:37 am and sunset at 8:15 pm; the daylight will last for 14h and 38min.

Frequently asked questions

What is the weather forecast for Mattawa for tomorrow?
On Saturday, strong breezes will accompany widespread cloudiness.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature in Mattawa will be 66.2°F, while the lowest temperature will be 42.8°F.
The highest temperature will be relatively lower than the average maximum of 71.2°F in May. Tomorrow, the lowest temperature will be also moderately lower than the average low temperature.
When are sunrise and sunset tomorrow?
On Saturday, in Mattawa, sunrise will be at 5:38 am and sunset at 8:14 pm (PDT).
How many hours of daylight will Mattawa have tomorrow?
In Mattawa, tomorrow, there will be 14h and 35min of daylight.
What is the weather forecast for Mattawa for Sunday?
On Sunday, a pleasant, mostly sunny outlook is in place.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 68°F, while the lowest temperature will be 44.6°F.
What is the weather forecast for Mattawa for the next ten days?
In Mattawa, a combination of sun-filled and gloomy weather is predicted for the next ten days.
How hot will it be in the next ten days?
The maximum temperature will range between 66.2°F and 87.8°F, as the minimum temperature will vary between 42.8°F and 55.4°F.
What will be the hottest and the coldest days?
Wednesday will be the hottest day, with a maximum temperature of 87.8°F. The coldest day will be tomorrow, with a maximum of 66.2°F.

Long-term weather forecast

FriMay 2.
  • 86°F
  • 55°F
Sunny
Sunny
  • Wind: 6mph SE
  • Humidity: 25%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:40 am 8:12 pm PDT
SatMay 3.
  • 66°F
  • 43°F
Cloudy / Wind
Cloudy / Wind
  • Wind: 22mph WNW
  • Humidity: 43%
  • UV index: 4
  • Precip. probability: 17%
  • Precipitation: 0"
  • 5:38 am 8:14 pm PDT
SunMay 4.
  • 68°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Wind: 13mph NW
  • Humidity: 30%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:37 am 8:15 pm PDT
MonMay 5.
  • 75°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph N
  • Humidity: 24%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:35 am 8:16 pm PDT
TueMay 6.
  • 81°F
  • 50°F
Sunny
Sunny
  • Wind: 7mph NE
  • Humidity: 24%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:34 am 8:18 pm PDT
WedMay 7.
  • 88°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph SSW
  • Humidity: 24%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:32 am 8:19 pm PDT
ThuMay 8.
  • 79°F
  • 48°F
Sunny
Sunny
  • Wind: 10mph WNW
  • Humidity: 28%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:31 am 8:20 pm PDT
FriMay 9.
  • 84°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph NNE
  • Humidity: 23%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:30 am 8:21 pm PDT
SatMay 10.
  • 82°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph NW
  • Humidity: 24%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:28 am 8:23 pm PDT
SunMay 11.
  • 77°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph WNW
  • Humidity: 28%
  • UV index: 5
  • Precip. probability: 14%
  • Precipitation: 0"
  • 5:27 am 8:24 pm PDT
Across the following ten days, a combination of clear and cloud-filled weather is expected.
Rainfall is not anticipated in Mattawa in the upcoming days.
Temperature differences will be noticeable in the next ten days. The maximum temperature will vary between 66.2°F and 87.8°F, while the lowest night temperatures will vary also significantly, as temperatures overnight will fluctuate from 42.8°F up to 55.4°F.
Wednesday is expected to be the hottest, reaching up to 87.8°F; with the highest temperature of 66.2°F, Saturday will be the coldest day.
Updated: May 2, 2025 @ 17:20:59 UTC
Published by: Weather U.S. | About Us
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