Right now in Reno, the air is about 74°F, but the model estimates the asphalt under your dog's paws is closer to 94°F — a gap of roughly 20°F, because clear skies are pouring full sun onto every dark surface. That reading puts Reno in the clear for an ordinary walk. Air temperature alone would have told you none of this — the pavement, not the forecast, is what your dog actually stands on.
Across the 15 hours left today, the pavement in Reno is projected to top out near 133°F around 2 PM, when the air will be about 93°F — a 40°F gap between the forecast your weather app shows and the surface your dog walks on. Today breaks into 2 separate safe stretches rather than one continuous window, so missing the first does not cost you the day.
In an average August, Reno sees highs around 89°F and overnight lows near 61°F. Even at those moderate highs, a dark surface in direct sun can run 40–60°F hotter than the air, which is enough to tip midday walks into the caution range. As a seasonal rule of thumb, the safest windows are before about 10:00 AM and after about 5:00 PM.
Reno loses its all-day safe window in 5 months of the year — May through September — and August is one of them. The year peaks in July at an average high of 93°F against 43°F in December, a 50°F swing that decides how much of the day belongs to your dog.
The nearest city we track is Roseville, roughly 96 miles from Reno — far enough that its reading is no substitute for this one. Sun angle, humidity and cloud cover can all differ across that distance, which is why this page models Reno on its own coordinates.
Whatever the number says, confirm it with your hand: press the back of it flat on the pavement for seven seconds. If you can't hold it there, neither can your dog. Conditions in Reno are on the gentler side right now, but keep the same habits: water before and after, grass over asphalt, and a close eye on flat-faced breeds, seniors, and puppies, who overheat and burn sooner than a healthy adult dog.