Weather in Phoenix - 14-day forecast

Detailed weather forecast for Phoenix, United States of America: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Phoenix

today☁️ 39°💧 0.8 mm

Sun🌧️ 37°💧 0.1 mm

Mon🌧️ 37°💧 0.5 mm

Tue☀️ 37°💧 1.8 mm

Wed🌧️ 36°💧 1.1 mm

Thu🌧️ 35°💧 3.7 mm

Fri🌧️ 32°💧 4.5 mm

Sat🌤️ 30°💧 7.8 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Friday 11 Sept in Phoenix, the forecast high is 32°C. Typical daytime temperatures at this time of year range from 35°C to 40°C, so it will be exceptionally cool. It is cooler than 95% of similar days.

Saturday 5 Sept

39°Cnear normal

usually 36°C–41°C

night: exceptionally warm rain: more rain than usual wind: stronger than usual

Sunday 6 Sept

37°Cnear normal

usually 36°C–41°C

night: exceptionally warm rain: typical rainfall wind: stronger than usual

Monday 7 Sept

37°Cnear normal

usually 36°C–41°C

night: exceptionally warm rain: typical rainfall wind: stronger than usual

Tuesday 8 Sept

37°Cnear normal

usually 36°C–41°C

night: exceptionally warm rain: more rain than usual wind: lighter than usual

Wednesday 9 Sept

36°Ccooler than usual

usually 36°C–41°C

cooler than 72% of similar days

night: exceptionally warm rain: more rain than usual wind: exceptionally strong

Thursday 10 Sept

35°Ccooler than usual

usually 35°C–41°C

cooler than 85% of similar days

night: exceptionally warm rain: exceptionally wet wind: exceptionally strong

Friday 11 Sept

32°Cexceptionally cool

usually 35°C–40°C

cooler than 95% of similar days

night: exceptionally warm rain: exceptionally wet wind: exceptionally strong

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 38°C by day. The coolest year was 1985 (33°C) and the warmest was 2024 (43°C). The current forecast averages 36°C - lower than in 78% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Phoenix

Phoenix - 14-day weather forecast infographic

Phoenix 30 & 45-day weather - long-range outlook

Next 15 days · forecast

35°

around 33° at night · days with rain: 9

Weeks 3-4 · avg for September

37°

around 25° at night · rain chance 14%

Weeks 5-7 · avg for October

33°

around 20° at night · rain chance 9%

The 30 & 45-day outlook for Phoenix: the next 15 days are a numerical forecast updated daily - on average 35° by day and 33° at night. Further out we rely on multi-year climate averages: around 37° in September, and about 33° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Phoenix

Saturday5 September 2026

☁️39°broken clouds

sunrise 06:05 · sunset 18:49 · night 34° · evening 38° · rain 0.82 mm · humidity 24% · wind 5 m/s · clouds 81%

Sunday6 September 2026

🌧️37°light rain

sunrise 06:06 · sunset 18:47 · night 34° · evening 38° · rain 0.1 mm · humidity 20% · wind 6 m/s · clouds 100%

Monday7 September 2026

🌧️37°light rain

sunrise 06:06 · sunset 18:46 · night 36° · evening 39° · rain 0.46 mm · humidity 22% · wind 6 m/s · clouds 31%

Tuesday8 September 2026

☀️37°clear sky

sunrise 06:07 · sunset 18:44 · night 38° · evening 41° · rain 1.77 mm · humidity 19% · wind 4 m/s · clouds 4%

Wednesday9 September 2026

🌧️36°light rain

sunrise 06:08 · sunset 18:43 · night 33° · evening 40° · rain 1.14 mm · humidity 30% · wind 7 m/s · clouds 53%

Thursday10 September 2026

🌧️35°moderate rain

sunrise 06:08 · sunset 18:42 · night 30° · evening 39° · rain 3.69 mm · humidity 38% · wind 8 m/s · clouds 7%

Friday11 September 2026

🌧️32°light rain

sunrise 06:09 · sunset 18:40 · night 31° · evening 35° · rain 4.47 mm · humidity 43% · wind 7 m/s · clouds 39%

Saturday12 September 2026

🌤️30°a few clouds

sunrise 06:10 · sunset 18:39 · night 30° · evening 32° · rain 7.77 mm · humidity 36% · wind 5 m/s · clouds 20%

Sunday13 September 2026

🌤️31°scattered clouds

sunrise 06:10 · sunset 18:38 · night 31° · evening 34° · rain 0.36 mm · humidity 24% · wind 3 m/s · clouds 30%

Monday14 September 2026

🌤️32°a few clouds

sunrise 06:11 · sunset 18:36 · night 31° · evening 35° · rain 4.05 mm · humidity 24% · wind 6 m/s · clouds 14%

Tuesday15 September 2026

☀️32°clear sky

sunrise 06:12 · sunset 18:35 · night 32° · evening 35° · rain 1.17 mm · humidity 26% · wind 5 m/s · clouds 100%

Wednesday16 September 2026

☁️34°broken clouds

sunrise 06:12 · sunset 18:34 · night 33° · evening 36° · rain 13.44 mm · humidity 18% · wind 2 m/s · clouds 63%

Thursday17 September 2026

☀️36°clear sky

sunrise 06:13 · sunset 18:32 · night 37° · evening 40° · humidity 13% · wind 3 m/s · clouds 4%

Friday18 September 2026

☀️38°clear sky

sunrise 06:14 · sunset 18:31 · night 36° · evening 40° · humidity 23% · wind 9 m/s · clouds 6%

Saturday19 September 2026

🌧️36°light rain

sunrise 06:14 · sunset 18:29 · night 32° · evening 39° · rain 1.08 mm · humidity 27% · wind 8 m/s · clouds 2%

UV index in Phoenix - is it safe to sunbathe?

Today the UV index in Phoenix is 8 (high) - unprotected fair skin can burn in about 25 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

Phoenix weather through the year

Warmest, driest months on average: January, February, March, April.

Upcoming public holidays in United States of America: Labour Day — 7 September · Veterans Day — 11 November · Thanksgiving Day — 26 November.

Nearby and related places

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FAQ - Phoenix weather

What is the weather like in Phoenix today?

Today it is about 39° during the day and 34° at night, broken clouds.

How far ahead can I check the forecast for Phoenix?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.