Today's Weather Forecast - Phoenix

Today's weather in Phoenix. high 42°C (108°F), low 31°C (88°F). Sunny.

Today’s Hourly Weather Outlook

Morning6 AM – Noon35°
Wind speed
6 km/h
Rain probability
1%
AfternoonNoon – 6 PM41°
Wind speed
18 km/h
Rain probability
4%
Evening6 PM – Midn37°
Wind speed
15 km/h
Rain probability
4%
NightMidn – 6 AM34°
Wind speed
15 km/h
Rain probability
2%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 5:39 AM
Total Daylight
Before sunriseSolar noon 12:24 PM
Sunset
Dusk 7:09 PM
RemainingBefore sunrise
Solar elevation-4°
vs yesterday-3 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Good
Dominant pollutant
Dominant: O3
Monitoring station
South Phoenix, Maricopa, USA
PM2.5
5μg/m³
PM10
10μg/m³
O₃
24.8ppb
NO₂
4.7ppb
CO
1.2ppm
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Phoenix is forecast to reach a high of 42°C today, with an overnight low around 31°C. That's 4° above the long-term average high of 38°C for this time of year. It continues a recent pattern — 14 of the last 19 days with published data have run warmer than normal. Expect little chance of rain (4% probability) and a gentle breeze averaging 18 km/h. Air quality is currently Moderate (AQI 74), driven mainly by PM10 at 86 μg/m³.

Today vs Normal

42°C+4° above normal

The long-term average high for today is 38°C.

14 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-19: 42°C42°2026-08-20: 40°C40°2026-08-21: 43°C43°2026-08-22: 42°C42°2026-08-23: 41°C41°2026-08-24: 40°C40°2026-08-25: 43°C43°2026-08-26: 44°C44°2026-08-27: 41°C41°2026-08-28: 42°C42°2026-08-29: 41°C41°2026-08-30: 39°C39°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.