Will it rain in
Phoenix today?
Live hourly rain forecast and run verdict for Phoenix, Arizona, US.
Running in Phoenix means respecting the desert's extreme heat for most of the year. Whether it's a predawn run to beat the 40-degree scorcher, a rare monsoon thunderstorm flooding the trails, or a perfect winter morning along the canal paths, knowing whether to head out before you lace up matters. RainOrRun checks live conditions in Phoenix right now and gives you an instant verdict — plus the best hourly window if the weather's on the fence. We'll also recommend the right gear for whatever Phoenix's desert extremes are throwing at you today.
What to wear
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How often does it rain in Phoenix?
Phoenix records around 282mm of rain a year, spread across about 34 days — roughly 9% of all days, or 3 days in an average month. Rain is rarely the thing that stops a run in Phoenix. You can plan a training week without building it around the forecast, and a packable jacket is more insurance policy than staple.
The wettest month is July, averaging 49mm across about 5 rainy days. The driest is May, with 3mm over roughly 1 days. Average lows bottom out around 5.7°C in January — long-sleeve and light-glove weather rather than full winter kit. At the other end, July averages 41.1°C highs — hot enough that early morning and evening are the sensible windows, and hydration matters more than waterproofing.
Those are ten-year averages, not a forecast. What actually matters on the day is the next twelve hours — which is what the live verdict and hourly strip at the top of this page are for.
| Month | Rainfall | Rainy days | Avg high | Avg low |
|---|---|---|---|---|
| January | 33mm | 4 | 18.5°C | 5.7°C |
| February | 30mm | 3 | 21.1°C | 7.1°C |
| March | 27mm | 3 | 25°C | 10.5°C |
| April | 4mm | 1 | 30.5°C | 15.1°C |
| May | 3mm | 1 | 34.1°C | 19.5°C |
| June | 5mm | 1 | 40.5°C | 25.8°C |
| July | 49mm | 5 | 41.1°C | 29°C |
| August | 35mm | 5 | 40°C | 28.1°C |
| September | 22mm | 3 | 37.5°C | 24.6°C |
| October | 26mm | 2 | 31.7°C | 17.6°C |
| November | 15mm | 2 | 24.6°C | 10.7°C |
| December | 33mm | 4 | 19.1°C | 6.4°C |
Historical data: Open-Meteo archive, 2015–2024. A “rainy day” means at least 1mm of precipitation.
Running in Phoenix: common questions
Will it rain in Phoenix today?
The forecast card at the top of this page shows Phoenix's rain probability for the current hour, plus an hour-by-hour breakdown for the rest of the day, using live Open-Meteo data. Historically, Phoenix sees rain on about 34 days a year, so on any given day there is roughly a 9% chance of some rain falling.
Is it a good day to run in Phoenix?
RainOrRun scores the live Phoenix forecast on rain probability, rainfall amount, temperature, wind speed and severe weather, then returns a single verdict: Go, Maybe, or Don't Bother. A Maybe means conditions are borderline and it is worth picking your window rather than skipping the run.
What is the best time to run in Phoenix today?
The hourly strip above highlights the best single window of the day for Phoenix — the hour combining the lowest rain probability with the most comfortable temperature. You can also check up to eight days ahead using the date picker if you are planning a long run or a race.
What should I wear running in Phoenix today?
The gear section on this page updates with the live Phoenix forecast: a waterproof jacket and peaked cap when rain probability goes above 40%, a thermal base layer and gloves below 8 degrees Celsius, and a high-vis vest when wind or low light make you harder to see.
What is the wettest month in Phoenix?
July is the wettest month in Phoenix, averaging 49mm of rain across about 5 rainy days. May is the driest, with around 3mm over roughly 1 days. Figures are ten-year averages covering 2015 to 2024.
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