Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

56°F

13°C

Humidity 45%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 01 Mar 03:35 PM PST
Extended Forecast for

Grandview WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 59. Calm wind becoming south around 5 mph in the afternoon.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 59 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain, mainly after 10pm.  Cloudy, with a low around 42. South wind 6 to 8 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain, mainly before 4pm.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 10pm.  Partly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: A 10 percent chance of rain after 4pm.  Partly sunny, with a high near 55.

    High: 55 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm.  Partly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. Calm wind.
Monday
Sunny, with a high near 59. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 37. Light and variable wind.
Tuesday
Mostly cloudy, with a high near 59. Light southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
A 50 percent chance of rain, mainly after 10pm. Cloudy, with a low around 42. South wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 50 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 57.
Wednesday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 38.
Thursday
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 55.
Thursday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 58.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 42.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 61.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 59.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Grandview WA
 46.25°N 119.89°W (Elev. 827 ft)
3:42 pm PST Mar 1, 2026
3pm PST Mar 1, 2026-6pm PDT Mar 8, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database