Arizona Weather: Tucson Nears 90s Through Midweek Before Cooler Desert Breezes Arrive Late This Week

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90 degrees hot
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Tucson, Ariz. – A pale desert sunrise spills over the Catalina Mountains, the air still and dry under a soft golden haze. The Sonoran Desert’s heat holds firm this Monday morning — a reminder that Tucson weather hasn’t quite surrendered to fall yet.

The National Weather Service in Tucson expects sunshine and steady warmth through midweek, with highs pushing into the upper 80s and low 90s. Monday brings a near-record high around 89°F, climbing slightly Tuesday and Wednesday before gradual cooling arrives. Winds stay light under clear skies, offering pleasant travel along I-10 and ideal conditions for outdoor work, hikes, and early morning events.

The warmth will peak Tuesday and Wednesday, with highs near 92°F, but forecasters say a weak Pacific influence may begin to nudge temperatures lower by Thursday. That change will usher in more typical fall air — low 80s by Thursday and mid-80s Friday, setting up a noticeably more comfortable stretch into the weekend.

No rain is expected in the next five days, though models hint at a minor moisture return by late next week. Early signs suggest southern Arizona could soon see its first consistent fall pattern, bringing clearer nights and slightly cooler mornings.

For now, Tucson’s skies remain calm, its heat steady — a postcard finish to one of the desert’s last warm October weeks before true fall balance settles in.


Five-Day Outlook for Tucson, AZ:
Mon: 89/59 – Sunny, calm, hot afternoon.
Tue: 92/65 – Mostly sunny, light breeze.
Wed: 92/59 – Warm, mostly clear skies.
Thu: 82/56 – Sunny, cooler trend begins.
Fri: 84/58 – Mild, sunny, pleasant day.

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