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Tropical Depression Nine in the Gulf of America; California October Heat Wave Continues

Tropical Depression Nine is forecast to track toward the central U.S. Gulf Coast while strengthening into a tropical storm by early Wednesday and a hurricane on Thursday. Stay tuned to forecast updates. Much higher than typical October temperatures will continue across much of California through midweek. Temperatures are forecast to gradually cool beginning Thursday in Coastal California. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

Clear

68°F

20°C

Humidity 59%
Wind Speed N 4 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 06 Oct 06:35 PM PDT
Extended Forecast for

11 Miles SE Mattawa WA

  • Tonight

    Tonight: Mostly clear, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Southeast wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Patchy blowing dust after 2pm. Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Patchy
    Blowing Dust

  • Friday Night

    Friday Night: Patchy blowing dust before 8pm. Partly cloudy, with a low around 43.

    Low: 43 °F

    Patchy
    Blowing Dust
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 51. Light and variable wind.
Wednesday
Sunny, with a high near 82. Northwest wind around 5 mph becoming calm in the afternoon.
Wednesday Night
Mostly clear, with a low around 52. Calm wind.
Thursday
Sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. Southeast wind around 5 mph becoming calm in the evening.
Friday
Patchy blowing dust after 2pm. Mostly sunny, with a high near 80.
Friday Night
Patchy blowing dust before 8pm. Partly cloudy, with a low around 43.
Saturday
Sunny, with a high near 66.
Saturday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 39.
Columbus Day
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Mattawa WA
 46.64°N 119.74°W (Elev. 400 ft)
Last Update:
11:46 am PDT Oct 6, 2026
Forecast Valid:
6pm PDT Oct 6, 2026-6pm PDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation