Local weather forecast

Weather in Mattawa, WA

Updated 2026-08-11 10:45 local time · ZIP codes 99349

Sunny
Now78°F

Sunny

High / Low88° / 63°
Rain chance1%
Wind4 mph
Weather alerts

Active alerts

1
Air Quality Alert issued August 10 at 4:33PM PDT by NWS Spokane WA

An Air Quality Alert has been issued by the following agencies: Washington Department of Ecology Colville Confederated Tribes Environmental Protection Agency Spokane Regional Clean Air Agency An Air Quality Alert has been issued for Adams, Asotin, Chelan, Douglas, Ferry, Garfield, Grant, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens, and Whitman Counties until further notice due to current and expected smoke from regional fires. Particulate matter (PM2.5) may reach Very Unhealthy levels for areas directly downwind from active wildfires. Other areas may reach Unhealthy for Sensitive Groups or worse. Intermittent clearing may occur due to windy conditions, but smoke production continues to be significant. When air quality is Unhealthy, everyone should reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoor air. When air quality is Very Unhealthy, everyone should reduce exposure. Stay inside and filter indoor air to keep it cleaner. Go elsewhere for cleaner air, if needed.

Hourly

Next hours

NowSunny78°0% rain
12 PMSunny84°0% rain
1 PMSunny86°0% rain
2 PMSunny86°0% rain
3 PMSunny87°0% rain
4 PMSunny88°0% rain
5 PMSunny87°0% rain
6 PMSunny84°0% rain
7 PMSunny79°1% rain
8 PMSmoky haze75°1% rain
9 PMSmoky haze72°1% rain
10 PMSmoky haze74°1% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
88° 63°Sunny
Rain 1%Gust 15 mph
Tomorrow2026-08-12
Smoky haze
91° 63°Smoky haze
Rain 17%Gust 13 mph
Thursday2026-08-13
Smoky haze
89° 62°Smoky haze
Rain 17%Gust 9 mph
Conditions

Weather details

Feels like77°F
Humidity28%
Pressure29.99 inHg
Visibility4 mi
Wind4 mph NW
Wind gusts5 mph
Precipitation0.00 in
UV index3
Daylight

Sunrise, sunset and moon

Sunrise05:51 AM
Sunset08:16 PM
Moonrise03:48 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 1%).

Light layers should work

It feels like 77°F with winds near 4 mph.

Best window: 8 PM

75°F, 1% rain chance and 13 mph wind.

Allow a little extra driving time

Visibility is around 4 mi; gusts may reach 23 mph.

Good conditions for an easy run

Current temperature is 78°F, wind 4 mph, rain chance up to 1%.

Moderate UV protection recommended

UV index is 3. Sunscreen and sunglasses are sensible for longer outdoor time.

Mattawa weather today

Sunny and 78°F in Mattawa, WA. Today's high is 88°F with a 1% rain chance. Winds are around 4 mph with gusts near 5 mph. Relative humidity is 28%, pressure is 29.99 inHg, and visibility is about 4 miles.

Tonight and tomorrow in Mattawa

Sunrise is at 05:51 AM and sunset is at 08:16 PM. Tomorrow's forecast calls for Smoky haze with a high near 91°F and a low near 63°F. The maximum rain chance is 17%.

Nearby

Weather near Mattawa

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