The National Weather Service has issued an extreme heat warning cautioning residents about going outdoors this week in the Phoenix area.
However, monsoon storms may begin approaching the Valley later in the week due to increasing moisture from interior Mexico.
Katherine Berislavich is a meteorologist with the National Weather Service in Phoenix.
“Wednesday, currently, we’ll see around 10 to 20% chance and then Thursday looks to be up around 30%," Berislavich said.
The National Weather Service says the storms may produce strong winds and blowing dust.
Very hot temperatures will persist through Tuesday with highs today topping 115°F in some areas. Phoenix may set a daily record high today with a forecast high of 116°. Fortunately, cooler weather is expected by mid-week as thunderstorm activity moves into the region. #azwx #cawx pic.twitter.com/TVpucUPDba
— NWS Phoenix (@NWSPhoenix) June 30, 2025
Phoenix 5-day forecast
Monday: Sunny and hot, with a high near 116. Calm wind becoming west around 5 mph in the afternoon. At night, Mostly clear, with a low around 90. West wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 20 mph.
Tuesday: Sunny and hot, with a high near 113. East southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. At night, 20% chance of showers and thunderstorms before 11 p.m. Partly cloudy, with a low around 88. East wind around 5 mph.
Wednesday: A 20% chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 106. East southeast wind 5 to 10 mph becoming west southwest in the afternoon. At night, 30% chance of showers and thunderstorms, mainly after 11 p.m. Mostly cloudy, with a low around 82. West southwest wind around 5 mph becoming east southeast after midnight.
Thursday: A 30% chance of showers and thunderstorms, mainly before 11am. Mostly sunny, with a high near 101. East southeast wind around 5 mph becoming west southwest in the afternoon. At night, mostly clear, with a low around 82. West southwest wind around 5 mph becoming calm after midnight.
Friday: Sunny, with a high near 103. West wind around 5 mph. At night, mostly clear, with a low around 82. West wind around 5 mph becoming calm after midnight.
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Valley residents will feel a brief cooldown this week. The National Weather Service predicts high temperatures in the high 80s to lower 90s in the early weekdays. But it's temporary solace as the summer season approaches. -
Temperatures in Phoenix will be about 14 degrees hotter than normal Monday and Tuesday. Climate Central ranks the weather event at the highest end of its Climate Shift Index scale.
