Averages from 2021–2025 (155 days of record).
Expect October days in Mesa, Arizona to top out around 89°F and cool to about 65°F overnight, with roughly 2 days of measurable rain across the month. In recent years October has ranged from 48°F to 110°F.
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberNovemberDecember
Current Mesa, Arizona forecast → · Historical data by Open-Meteo (ERA5).