Weather for Sumner, Washington
Current Weather
Five Day Weather Forecast
Wed
H: 40°F
L: 33°F
Thu
H: 42°F
L: 36°F
Fri
H: 48°F
L: 37°F
Sat
H: 49°F
L: 35°F
Sun
H: 45°F
L: 37°F
Air Quality
Nitrogen Dioxide: 7.15 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 67 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 4:37 PM
Daylight: 8 hrs 42 mins
Moon Transit: 3:48 AM
Moonset: 10:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%
Best Times for Fishing or Hunting
Major Periods
3:18 AM - 5:48 AM11:15 AM - 1:45 PM
Minor Periods
9:39 PM - 11:09 PM9:56 AM - 11:26 AM
Action Rating: 2 out of 5
Winter Storm Warning issued January 6 at 3:15PM PST until January 8 at 4:00PM PST by NWS Seattle WA
Effective: Tue January 6, 2026, 3:15 PM
Expires: Tue January 6, 2026, 11:15 PM
* WHAT...Heavy snow expected. Total snow accumulations between 2 and 4 feet. Winds gusting as high as 35 mph. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...Until 4 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.
Winter Storm Warning issued January 6 at 6:43PM PST until January 8 at 4:00PM PST by NWS Seattle WA
Effective: Tue January 6, 2026, 6:43 PM
Expires: Wed January 7, 2026, 2:45 AM
* WHAT...Heavy snow expected. Total snow accumulations between 2 and 4 feet. Winds gusting as high as 35 mph. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...Until 4 PM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.
Flood Watch issued January 6 at 3:19PM PST until January 8 at 4:00AM PST by NWS Seattle WA
Effective: Tue January 6, 2026, 3:19 PM
Expires: Wed January 7, 2026, 4:00 AM
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest Washington, including the following county, Mason. * WHEN...Through late Wednesday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Approximately 1.5 to 2.5 inches of precipitation are expected for the Olympics by the end of Tuesday. Snow levels will fluctuate between 2500 to 3500 feet. The Skokomish River levels also currently remain elevated due to precipitation over the last few days. For these reasons, the potential exists for the Skokomish River in Mason County to reach flood stage by Tuesday night. - http://www.weather.gov/safety/flood
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.48 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 72.92 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 4:37 PM
Daylight: 8 hrs 42 mins
Moon Transit: 3:48 AM
Moonset: 10:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%
Best Times for Fishing or Hunting
Major Periods
3:18 AM - 5:48 AM11:15 AM - 1:45 PM
Minor Periods
9:39 PM - 11:09 PM9:56 AM - 11:26 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.49 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 74.72 μg/m3
Astronomical
Sun Transit: 12:15 AM
Sunset: 4:38 PM
Daylight: 8 hrs 43 mins
Moon Transit: 4:32 AM
Moonset: 10:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%
Best Times for Fishing or Hunting
Major Periods
4:02 AM - 6:32 AM11:57 AM - 2:27 PM
Minor Periods
12:00 AM - 12:00 AM10:11 AM - 11:41 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.93 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 63.8 μg/m3
Astronomical
Sun Transit: 12:16 AM
Sunset: 4:39 PM
Daylight: 8 hrs 45 mins
Moon Transit: 5:14 AM
Moonset: 10:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%
Best Times for Fishing or Hunting
Major Periods
4:44 AM - 7:14 AM12:39 AM - 3:09 PM
Minor Periods
10:26 AM - 11:56 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.57 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 58.12 μg/m3
Astronomical
Sun Transit: 12:16 AM
Sunset: 4:40 PM
Daylight: 8 hrs 46 mins
Moon Transit: 5:55 AM
Moonset: 11:11 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%
Best Times for Fishing or Hunting
Major Periods
5:25 AM - 7:55 AM1:20 PM - 3:50 PM
Minor Periods
10:41 AM - 12:11 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 18.83 μg/m3
Sulphur Dioxide: 2.09 μg/m3
Ozone: 51.38 μg/m3
Astronomical
Sun Transit: 12:17 AM
Sunset: 4:41 PM
Daylight: 8 hrs 48 mins
Moon Transit: 6:37 AM
Moonset: 11:28 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%
Best Times for Fishing or Hunting
Major Periods
6:07 AM - 8:37 AM2:03 PM - 4:33 PM
Minor Periods
10:58 AM - 12:28 AM1:06 AM - 2:36 AM
Action Rating: 3 out of 5