Summer temperatures · Arizona
How hot does Phoenix get in summer?
Phoenix right now
62°FBroken cloud
- Today66°F / 60°FClouds
- Tomorrow75°F / 56°FClear skies
- Monday76°F / 55°FClouds
Vibes: mildly damp socks.
Live from OpenWeatherMap. Alerts from the National Weather Service.
In a typical summer, June to August, Phoenix averages highs around 105°F and lows around 82°F.
About 173 days a year reach 90°F or hotter, and about 111 reach 100°F. About 234 days a year get to 80°F or warmer. That makes it the hottest summer of the 129 US cities we track.
Last updated
The hottest high in the forecast for the next 48 hours is about 75°F.
Phoenix averages about 111 days a year at 100°F or hotter, and its summer nights only cool to about 82°F, which is most cities’ idea of a warm afternoon.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer at a glance
| Average summer high | 105°F |
|---|---|
| Average summer low | 82°F |
| Days a year at 80°F or warmer | 234 |
| Days a year at 90°F or hotter | 173 |
| Days a year at 100°F or hotter | 111 |
| Average winter high, for comparison | 68°F |
Summer here is June to August. Counts are averages a year.
Cities with about the same summer
- Las Vegas, Nevada: highs around 102°F, lows around 80°F
- Tucson, Arizona: highs around 100°F, lows around 74°F
- Houston, Texas: highs around 94°F, lows around 75°F
More about the weather here
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00023183.