Today's one of those "almost perfect" days if you ignore a couple of nagging irritants, but that's Phoenix for ya.
- Temps are absolutely mint this morning, sitting comfortably around 23.7°C (75°F) under an overcast sky, making it ideal for a longer run or ride. Enjoy that glorious cloud cover, it won't last forever.
- Your lungs might be singing a different tune, though. While the official Air Quality Index is currently moderate at 51, with PM2.5 as the dominant pollutant, AccuWeather is pegging today's air quality as "Poor" for sensitive groups. Combine that with moderate pollen, and you might feel a little extra scratch in your throat on your usual route around Papago Park.
- Hitting the trails further out? Good luck navigating the asphalt jungle. ADOT has major freeway closures and restrictions all weekend, including parts of SR 51 and I-10. Plan your drive to South Mountain Park accordingly, unless you enjoy sitting in gridlock more than you like actual running.
The Air You Breathe & The Pollen You'll Eat
The air quality data for today is a bit of a mixed bag, but the takeaway is the same: if you've got sensitive lungs, take it easy. We're sitting at a moderate AQI of 51, with fine particulate matter (PM2.5) being the main culprit. That means those tiny particles are floating around, ready to irritate your respiratory system, especially if you're out there pushing it.
And let's not forget the pollen. It's only "Moderate" today, but in Phoenix, "moderate" often feels like a full-on assault depending on what's blooming.
| Pollen Type | Level (Today) |
|---|---|
| Trees | Moderate |
| Grass | Low |
| Weeds | Low |
Air Quality Alert for Sensitive Groups: While the overall AQI is moderate, AccuWeather specifically advises that the air is "unhealthy for sensitive groups" due to pollution levels today. If you experience difficulty breathing or throat irritation, cut your workout short or move it indoors. The Arizona Department of Environmental Quality (ADEQ) issues High Pollution Advisories when levels are expected to exceed federal health standards, and recommends limiting outdoor activity, especially for children and adults with respiratory problems.
Phoenix Weather: A Brief Respite
Finally, a beautiful running day without having to start at 4 AM to beat the heat. Our 23.7°C (75°F) and overcast skies are a welcome change. Enjoy it, because March saw some "unprecedented" and "record-breaking" heat, leading to early trail closures on popular spots like Camelback Mountain and Piestewa Peak. While we're not under an Extreme Heat Warning today, it's a stark reminder of what's coming, and how quickly this desert can turn on you. The National Weather Service is forecasting cooling temperatures this weekend, with seasonal norms returning.
Wildfire Watch: Federal forecasters are warning that April has an "above-normal wildfire potential" for Arizona due to warm and dry conditions. While there are no active major fires directly impacting Phoenix as of today, a Fire Weather Watch is in effect for parts of Southern Arizona this weekend. Stay vigilant and check local news if you're heading to more remote areas.
Construction & Events: Know Before You Go
Good luck trying to get anywhere fast if you're driving. The Arizona Department of Transportation (ADOT) has several major freeway improvement projects underway this weekend. Expect closures on southbound SR 51 between Indian School Road and I-10, and eastbound I-10 at Perryville Road in the West Valley. These aren't just minor inconveniences; they're guaranteed to add significant time to your commute to any trailheads.
Also, if you're thinking of getting a different kind of workout, the City of Phoenix and Rio Reimagined are hosting a volunteer Salt River Clean-Up this morning at 6000 South 91st Avenue in Tolleson. Good for the environment, but if you're running that stretch, expect some crowds and activity.
Data grounded with FOX 10 Phoenix from April 11, 2026.