October brings relief from the desert heat: NOAA's 1991–2020 normals for Phoenix Sky Harbor give an average high of 89.2°F, a low of 65.6°F and 0.56 inches of rain, while Flagstaff's normals are a 63.6°F high and a 31.5°F low with 1.5 inches of snow. This page is a dated monthly snapshot reviewed October 17, 2026, not live weather or a live events feed.
Arizona this month
A dated monthly snapshot of Arizona weather normals and verified event dates.
This month at a glance
| Topic | Detail |
|---|---|
| Phoenix high / low | 89.2°F / 65.6°F (NOAA 1991–2020, Sky Harbor) |
| Tucson high / low | 86.3°F / 59.0°F |
| Flagstaff high / low | 63.6°F / 31.5°F; normal snowfall 1.5 inches |
| Schedules | Grand Canyon fall shuttles through November 30; Hermit Road closed to private vehicles through November 30 |
For live conditions use the National Weather Service. See the events page.
How this page is maintained
We update it monthly; last review October 17, 2026. Between reviews it may be out of date.
Weather and what to wear
NOAA monthly normals.
Climate table →
This week
Verified schedule notes.
Events →
Seasonal picks
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Best time to visit →
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Compare regions →Frequently asked questions
Is this page updated daily?
No. It is a monthly snapshot.
Where do the numbers come from?
NOAA NCEI climate normals and the National Park Service; see sources below.
What should I wear in October?
NOAA's normals suggest warm days in the desert and cold nights in Flagstaff; pack layers.
Sources
Facts on this page were read from the sources below on October 17, 2026. Hours, fares, prices and event dates change — confirm with the source before you travel. How we research and update.
- U.S. Climate Normals 1991-2020, Phoenix Sky Harbor International Airport (USW00023183) — NOAA National Centers for Environmental Information
- South Rim Shuttle Bus Routes — National Park Service, Grand Canyon National Park