Weather forecast for: Sumner WA
Last Update: 11:27 am PDT Sep 2, 2026
Tonight: A slight chance of rain before 11pm, then a chance of rain after 1am. Increasing clouds, with a low around 50. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.
Thursday: A chance of rain before 11am, then a chance of showers and thunderstorms between 11am and 5pm, then a chance of rain and thunderstorms after 5pm. Partly sunny, with a high near 68. Calm wind. Chance of precipitation is 50%.
Thursday Night: A 20 percent chance of rain between 2am and 3am. Mostly cloudy, with a low around 50. Calm wind.
Friday: A chance of rain between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 71. Calm wind. Chance of precipitation is 30%.
Friday Night: Mostly cloudy, with a low around 51. Calm wind.
Saturday: A 20 percent chance of showers and thunderstorms after 11am. Partly sunny, with a high near 74.
Saturday Night: Partly cloudy, with a low around 52.
Sunday: Mostly sunny, with a high near 77.
Sunday Night: Mostly clear, with a low around 55.
Labor Day: A slight chance of rain before 11am. Mostly sunny, with a high near 76.
Monday Night: Mostly cloudy, with a low around 55.
Tuesday: Mostly cloudy, with a high near 75.
Tuesday Night: Partly cloudy, with a low around 55.
Wednesday: Mostly sunny, with a high near 78.
WeatherWorld.com
City of Sumner, WA
