TUCSON, Ariz. – The Sonoran Desert wakes under a still, golden sky this morning, saguaro shadows stretching long across the foothills. It’s the start of another sun-drenched stretch in southern Arizona, with temperatures expected to climb toward 90°F through Tuesday before a subtle cooling trend arrives just in time for Halloween.
According to the National Weather Service in Tucson, Sunday brings calm conditions with highs near 88°F under clear skies. Winds remain light and variable, shifting southeast through the day. Monday will follow suit, reaching the upper 80s, while Tuesday marks the week’s warmest point as highs touch 91°F — roughly ten degrees above average for late October. Evenings, however, will stay comfortably cool, with lows dipping near 58°F across Pima County.
Travelers along I-10 and commuters in the Tucson metro can expect excellent driving conditions, though the dry air may create light dust near open fields west of town. Outdoor events, early voting lines, and Halloween setup plans will all benefit from the stable weather window through Thursday. Residents are urged to stay hydrated and avoid open flames in dry desert brush.
Looking toward Halloween night, temperatures are projected to settle into the low 80s during the day before sliding into the upper 60s by dusk — perfect for trick-or-treating in costume without the chill.
For now, this late-season warmth keeps southern Arizona firmly in fall’s sunny grip. But models hint at a pattern shift early next week, with cooler Pacific air potentially signaling a chillier start to November.
Five-Day Forecast for Tucson, AZ:
Sun: 88/58 – Sunny; calm southeast wind.
Mon: 88/58 – Bright, warm; light breeze.
Tue: 91/60 – Hotter; early-week peak heat.
Wed: 90/60 – Sunny; slight breeze north.
Thu: 90/59 – Clear skies; gradual cooling trend.
