Right now in Provo, the air is about 92°F, but the model estimates the asphalt under your dog's paws is closer to 139°F — a gap of roughly 47°F, because clear skies are pouring full sun onto every dark surface. That reading puts Provo in the danger range, where pavement can scald paw pads in under a minute. Air temperature alone would have told you none of this — the pavement, not the forecast, is what your dog actually stands on.
Across the 11 hours left today, the pavement in Provo is projected to top out near 143°F around 2 PM, when the air will be about 94°F — a 49°F gap between the forecast your weather app shows and the surface your dog walks on. The surface is holding roughly flat over the next three hours, so there is no meaningfully cooler hour coming soon — choose shade and grass rather than waiting it out.
In an average August, Provo sees highs around 88°F and overnight lows near 63°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.
Provo 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 91°F against 37°F in January, a 55°F swing that decides how much of the day belongs to your dog.
The nearest place we track is West Jordan, about 30 miles away. That is close enough to move together in a heat wave but far enough that a passing cloud bank or a coastal breeze can put real distance between the two readings, so check Provo's own page rather than assuming.
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. On a day reading this warm in Provo, flat-faced breeds like pugs and bulldogs, plus seniors and young puppies with thinner pads, should sit out the heat entirely — subtract about 10°F from any safe threshold for them. If you must cross hot ground, protective booties or a quick coat of paw wax are the only real barrier between paw pads and the asphalt.