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Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Overcast

58°F

14°C

Humidity 41%
Wind Speed N 12 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 11 Oct 11:55 AM PDT
Extended Forecast for

Grandview WA

Freeze Warning October 11, 11:00pm until October 12, 09:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: Patchy blowing dust before 2pm. Sunny, with a high near 60. North wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 60 °F

    Patchy
    Blowing Dust

  • Tonight

    Tonight: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. North wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Partly Cloudy
    then Frost

  • Columbus Day

    Columbus Day: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62. Calm wind.

    High: 62 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66. Calm wind.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
Patchy blowing dust before 2pm. Sunny, with a high near 60. North wind 11 to 14 mph, with gusts as high as 23 mph.
Tonight
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. North wind around 5 mph becoming calm in the evening.
Columbus Day
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62. Calm wind.
Monday Night
Mostly clear, with a low around 30. Calm wind.
Tuesday
Sunny, with a high near 66. Calm wind.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 40.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grandview WA
 46.25°N 119.92°W (Elev. 804 ft)
Last Update:
11:46 am PDT Oct 11, 2026
Forecast Valid:
12pm PDT Oct 11, 2026-6pm PDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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