5-day weather forecast for Tempe, Arizona

Weather changeability for Phoenix, Arizona

Temperature Last Month Last Year
Average change in high temperature day-to-day 3.9° 3.5°
Average change in low temperature day-to-day 4.5° 4.1°
Precipitation Last Month Last Year
Chance of dry day after a precip day 57% 67%
Chance of precip day after a dry day 13% 4%

Weather forecast accuracy for Phoenix, Arizona

Last Month
Dark Sky (forecast.io)   84.68%
Weather Underground   84.41%
AccuWeather   83.87%
The Weather Channel   83.60%
Foreca   82.26%
MeteoGroup   82.26%
NWS Digital Forecast   71.77%
World Weather Online   68.28%
Persistence   52.96%
Last Year
The Weather Channel   90.94%
Weather Underground   90.89%
AccuWeather   89.95%
MeteoGroup   88.13%
Foreca   87.65%
NWS Digital Forecast   85.71%
Dark Sky (forecast.io)   79.26%
World Weather Online   76.15%
Persistence   66.98%

ForecastAdvisor Fact

10.2% of Persistence's low temperature forecasts for Phoenix were off by more than 10 degrees last year.