Mattawa, WA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Mattawa, WA in one place.
Sunny, with a high near 93. West wind 7 to 13 mph, with gusts as high as 22 mph.
Local Weather Overview
This forecast page for Mattawa, WA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 7:36 AM PDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Mattawa, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 7:36 AM PDT
- Forecast office
- OTX
- Source
- NOAA / NWS
Daily Outlook
This Week in Mattawa
Tuesday looks like the warmest upcoming period in Mattawa at 99 degrees F.
Saturday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Saturday Night at about 7 to 14 mph NW.
The forecast from Jul 18 through Jul 23 stays mostly dry.
Forecast Details
- Last updated
- Jul 17, 2026 7:36 AM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- OTX
- Radar station
- KPDT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 63. Northwest wind 7 to 14 mph, with gusts as high as 25 mph.
Sunny, with a high near 95.
Partly cloudy, with a low around 67.
Mostly sunny, with a high near 96.
Mostly cloudy, with a low around 72.
Mostly sunny, with a high near 99.
Partly cloudy, with a low around 72.
Mostly sunny, with a high near 99.
Partly cloudy, with a low around 72.
Mostly sunny, with a high near 98.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny
|
93°F |
7 to 13 mph
W
|
|
Saturday Night
Jul 18
|
Clear
|
63°F |
7 to 14 mph
NW
|
|
Sunday
Jul 19
|
Sunny
|
95°F |
3 to 7 mph
NW
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
67°F |
5 mph
W
|
|
Monday
Jul 20
|
Mostly Sunny
|
96°F |
5 mph
N
|
|
Monday Night
Jul 20
|
Mostly Cloudy
|
72°F |
5 mph
SW
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
99°F |
5 mph
N
|
|
Tuesday Night
Jul 21
|
Partly Cloudy
|
72°F |
6 mph
NW
|
|
Wednesday
Jul 22
|
Mostly Sunny
|
99°F |
6 mph
NW
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
72°F |
8 mph
W
|
|
Thursday
Jul 23
|
Mostly Sunny
|
98°F |
6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mattawa.
