Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

N/A

Humidity 87%
Wind Speed N 0 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 10 Mar 07:35 AM PDT
Extended Forecast for

5 Miles WNW Alderdale WA

  • Overnight

    Overnight: A 40 percent chance of rain.  Cloudy, with a low around 47. West wind around 7 mph.

    Low: 47 °F

    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain before 8am.  Cloudy through mid morning, then gradual clearing, with a high near 59. Northwest wind 8 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 59 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Northwest wind 6 to 15 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 57. Northwest wind 5 to 7 mph becoming south in the morning.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. Southeast wind around 6 mph becoming northwest after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 45.

    Low: 45 °F

    Cloudy

  • Tuesday

    Tuesday: Rain likely.  Mostly cloudy, with a high near 58. Chance of precipitation is 70%.

    High: 58 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 11pm.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Overnight
A 40 percent chance of rain. Cloudy, with a low around 47. West wind around 7 mph.
Saturday
A 30 percent chance of rain before 8am. Cloudy through mid morning, then gradual clearing, with a high near 59. Northwest wind 8 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 34. Northwest wind 6 to 15 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 57. Northwest wind 5 to 7 mph becoming south in the morning.
Sunday Night
Mostly cloudy, with a low around 38. Southeast wind around 6 mph becoming northwest after midnight.
Monday
Partly sunny, with a high near 58.
Monday Night
Cloudy, with a low around 45.
Tuesday
Rain likely. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.
Tuesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain, mainly before 11am. Mostly sunny, with a high near 57. Breezy.
Wednesday Night
Mostly clear, with a low around 35. Breezy.
Thursday
Sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Alderdale WA
 45.91°N 120.02°W (Elev. 902 ft)
2:30 am PDT Mar 21, 2026
2am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
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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