Phoenix, Arizona weather in October

Averages from 2021–2025 (155 days of record).

Average high: 89°F
Average low: 64°F
Rainy days: ~2 per month
Total precipitation: 1.4 in
Warmest recorded: 110°F
Coldest recorded: 46°F

Expect October days in Phoenix, Arizona to top out around 89°F and cool to about 64°F overnight, with roughly 2 days of measurable rain across the month. In recent years October has ranged from 46°F to 110°F.

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Current Phoenix, Arizona forecast → · Historical data by Open-Meteo (ERA5).