
Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.
Gusty winds and low relative humidity will bring critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >
Current conditions at
Sunnyside Municipal Airport (K1S5)
Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.
Overcast
37°F
3°C
| Humidity | 75% |
| Wind Speed | N 0 MPH |
| Barometer | 29.81 in (1009.48 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Last update | 19 Feb 06:15 PM PST |
Extended Forecast for
Prosser WA
Tonight

Low: 26 °F
Chance Snow
Friday

High: 43 °F
Partly Sunny
Friday Night

Low: 27 °F
Mostly Cloudy
Saturday

High: 44 °F
Slight Chance
Rain/SnowSaturday Night

Low: 31 °F
Slight Chance
RainSunday
High: 51 °F
Chance
Rain/Snow
then Chance
RainSunday Night

Low: 37 °F
Rain Likely
Monday

High: 54 °F
Rain
Monday Night

Low: 36 °F
Rain Likely
Detailed Forecast
Tonight
A chance of snow between 7pm and 1am. Mostly cloudy, with a low around 26. Northeast wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 43. South wind 3 to 7 mph.
Friday Night
Mostly cloudy, with a low around 27. East wind around 6 mph becoming north after midnight.
Saturday
A slight chance of rain and snow after 10am. Snow level 700 feet rising to 1600 feet in the afternoon. Mostly cloudy, with a high near 44. North wind 6 to 9 mph. Chance of precipitation is 20%.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 31. North wind 7 to 9 mph.
Sunday
A chance of rain and snow before 10am, then a chance of rain. Snow level 1400 feet rising to 2900 feet in the afternoon. Partly sunny, with a high near 51. Chance of precipitation is 50%. Little or no snow accumulation expected.
Sunday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
Monday
Rain. High near 54. Chance of precipitation is 80%.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Tuesday
A chance of rain, mainly before 4pm. Mostly sunny, with a high near 53.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 34.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 53.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Thursday
A chance of rain. Partly sunny, with a high near 54.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Prosser WA
46.2°N 119.78°W (Elev. 646 ft)
46.2°N 119.78°W (Elev. 646 ft)
3:42 pm PST Feb 19, 2026
6pm PST Feb 19, 2026-6pm PST Feb 26, 2026


