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Arctic Air Mass Lingers for Areas of the East; Critical Fire Weather for the Plains; Active Weather Pattern for Hawaii

Arctic air lingers for the east, however, winds will slowly subside and a slow moderating trend starts during the week. Moisture continues to provide rainfall and higher elevation snow for the Pacific Northwest, northern California and northern Rockies through Monday. For the State of Hawaii, dangerous surf conditions with strong winds and heavy rainfall will impact the islands through Monday. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Partly Cloudy

36°F

2°C

Humidity 99%
Wind Speed N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 09 Feb 01:35 AM PST
Extended Forecast for

4 Miles NE Prosser WA

  • Overnight

    Overnight: A 20 percent chance of rain. Mostly cloudy, with a low around 34. Southwest wind around 5 mph.

    Low: 34 °F

    Slight Chance
    Rain

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 53. West wind 7 to 11 mph.

    High: 53 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. South wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 47. North wind 3 to 8 mph.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. North wind around 6 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Mostly cloudy, with a low around 34. Southwest wind around 5 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 53. West wind 7 to 11 mph.
Monday Night
Partly cloudy, with a low around 30. South wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 47. North wind 3 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 30. North wind around 6 mph.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly cloudy, with a high near 47.
Thursday Night
Partly cloudy, with a low around 31.
Friday
Cloudy, with a high near 46.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 33.
Saturday
A chance of rain. Mostly cloudy, with a high near 47.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 31.
Sunday
A slight chance of rain and snow. Snow level 1700 feet. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Prosser WA
 46.23°N 119.7°W (Elev. 650 ft)
Last Update:
1:25 am PST Feb 9, 2026
Forecast Valid:
1am PST Feb 9, 2026-6pm PST Feb 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation