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Hyak, Washington Weather Forecast
Hyak, Washington Weather
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Weather Forecast for Hyak, Washington : Kittitas County
Issued: 12:46 am PST Dec 15, 2025 Latitude: 47.3928903 Longitude: -121.392872 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
90% chance of rain on Overnight 100% chance of thunderstorms on Monday 100% chance of rain & snow on Tuesday 100% chance of rain & snow on Wednesday 100% chance of rain & snow on Thursday Snow on Friday Snow on Saturday Snow on Sunday
Low: 42°F High: 51°F High: 42°F High: 35°F High: 38°F High: 35°F High: 34°F High: 36°F
Low: 36°F Low: 30°F Low: 29°F Low: 30°F Low: 27°F Low: 27°F  
Rain Thunderstorms Rain & Snow Rain & Snow Rain & Snow Snow Snow Snow
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Current Conditions at
STAMPEDE PASS - (KSMP)
41°
Mostly Cloudy
as of 11:56 PM PST
Rel. Humidity: 100%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 100ft, Broken at 5500ft, Broken at 7500ft
Current Conditions at
RENTON - (KRNT)
52°
Cloudy
Light Rain
as of 11:53 PM PST
Rel. Humidity: 93%
Dew Point: 50°F
Visibility: 9 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Broken at 6000ft, Solid Overcast at 7500ft
Current Conditions at
SEATTLE-TACOMA - (KSEA)
50°
Cloudy
Rain Mist
as of 11:53 PM PST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 4 Miles
Pressure: 29.93 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Broken at 5000ft, Solid Overcast at 7000ft
Current Conditions at
BOEING FIELD - (KBFI)
52°
Cloudy
Light Rain Mist
as of 11:53 PM PST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 6 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 5500ft
90% chance of rain Overnight Overnight... Rain. Patchy fog. Low around 42. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

100% chance of thunderstorms Monday Monday... Rain before 4pm, then showers and possibly a thunderstorm after 4pm. High near 51. Southwest wind 6 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

100% chance of rain & snow Monday Night Monday Night... Rain and snow, becoming all rain after 4am. Some thunder is also possible. Low around 36. West wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

100% chance of rain & snow Tuesday Tuesday... Rain before 7am, then rain, possibly mixed with snow between 7am and 10am, then rain after 10am. High near 42. Southwest wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

100% chance of rain & snow Tuesday Night Tuesday Night... Rain before 1am, then snow, possibly mixed with rain. The rain could be heavy at times. Low around 30. West wind 10 to 13 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

100% chance of rain & snow Wednesday Wednesday... Snow, possibly mixed with rain, becoming all snow after 7am. The snow could be heavy at times. High near 35. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

90% chance of snow Wednesday Night Wednesday Night... Snow. Low around 29. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

100% chance of rain & snow Thursday Thursday... Snow before 10am, then rain, possibly mixed with snow. High near 38. Chance of precipitation is 100%.

100% chance of rain & snow Thursday Night Thursday Night... Snow, possibly mixed with rain. The snow could be heavy at times. Low around 30. Chance of precipitation is 100%.

Snow on Friday Friday... Snow. Mostly cloudy, with a high near 35.

Snow on Friday Night Friday Night... Snow. Mostly cloudy, with a low around 27.

Snow on Saturday Saturday... Snow. Mostly cloudy, with a high near 34.

Snow on Saturday Night Saturday Night... Snow. Mostly cloudy, with a low around 27.

Snow on Sunday Sunday... Snow. Mostly cloudy, with a high near 36.

Current Radar Image


Sun Almanac for Hyak, Washington
Sunrise: 07:47 AM
Sunset: 4:15 PM
Civil Sunrise:07:11 AM
Civil Sunset: 4:51 PM
Nautical Sunrise: 06:32 AM
Nautical Sunset: 5:30 PM
Astro Sunrise: 05:54 AM
Astro Sunset: 6:08 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.