5-day weather forecast for Sumner, Washington

Weather changeability for Tacoma, Washington

Temperature Last Month Last Year
Average change in high temperature day-to-day 5.2° 4.1°
Average change in low temperature day-to-day 1.8° 3.6°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 33%
Chance of precip day after a dry day 7% 22%

Weather forecast accuracy for Tacoma, Washington

Last Month
Weather Underground   89.52%
The Weather Channel   88.71%
MeteoGroup   88.17%
Foreca   87.10%
AccuWeather   83.60%
NWS Digital Forecast   79.78%
Dark Sky (forecast.io)   70.43%
Persistence   68.82%
Last Year
Weather Underground   84.15%
The Weather Channel   83.74%
MeteoGroup   81.47%
Foreca   80.33%
AccuWeather   80.26%
NWS Digital Forecast   79.53%
WeatherBug   76.32%
CustomWeather   75.37%
Persistence   57.52%

ForecastAdvisor Fact

ForecastWatch.com is the largest provider of weather forecast accuracy statistics.