Phoenix

Phoenix Braces for Weather Whiplash as Clear Skies Shift to Thundery Showers

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Published on September 25, 2025
Phoenix Braces for Weather Whiplash as Clear Skies Shift to Thundery ShowersSource: Google Street View

Residents in Phoenix, AZ, should prepare for a series of shifting weather conditions over the next week, as clear skies give way to chances of showers and thunderstorms. According to the latest update from the National Weather Service, the Valley is currently sitting at a comfortable 90°F with humidity at 25%. Calm winds have been forecasted overnight as temperatures are expected to dip to a low around 83 degrees.

The weather outlook suggests a slight change. There's a 10 percent chance of showers and thunderstorms post 4pm, with clouds on the increase and temperatures peaking near 106 degrees. The wind is expected to pick up, gusting as high as 20 mph. These conditions will persist tonight, as the chance of showers and thunderstorms rises to 20 percent with lows falling to around 77 degrees.

Tomorrow's forecast is calling for a 60% chance of precipitation, with showers and possibly a thunderstorm after 11 am. Despite the potential for rain, the high will remain near 93 degrees with gusty winds again in the forecast. New rainfall amounts could range from a tenth to a quarter of an inch, but higher amounts are possible where thunderstorms occur.

The unsettled weather is poised to continue through the weekend, with a 30 percent chance of evening thunderstorms tomorrow night, and a similar outlook for Saturday during the day. The highs over the weekend will drop to the upper 80s, providing a slight reprieve from the heat earlier in the week. Temperatures at night are expected to remain consistent, with lows hovering around the low 70s.

Come Sunday, the skies will clear up with a sunny high near 88, which will stick through the early part of next week. The nightly lows are projected to stay steady at around 72 degrees. By Tuesday and Wednesday, the temperature will once again creep into the mid-90s, marking a return to sunnier skies and dry weather. For those looking to keep abreast of weather changes, the full forecast can be found at the National Weather Service website.