Right now in Arvada, the air is about 61°F, but the model estimates the asphalt under your dog's paws is closer to 61°F — the surface and air have nearly converged because the pavement is shedding the day's stored heat after dark. That reading puts Arvada 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 21 hours left today, the pavement in Arvada is projected to top out near 120°F around 1 PM, when the air will be about 83°F — a 37°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 October, Arvada sees highs around 66°F and overnight lows near 37°F. That keeps most of the day walkable, though a rare clear, calm afternoon can still warm exposed pavement more than the mild air suggests. For this month the normals suggest pavement rarely reaches unsafe temperatures here, but the seven-second hand test is still the final word on any given day.
Arvada loses its all-day safe window in 4 months of the year — June through September — and October is not one of them. The year peaks in July at an average high of 89°F against 39°F in February, a 50°F swing that decides how much of the day belongs to your dog.
Arvada sits about 4 miles from Westminster, close enough that the two usually run within a degree or two of each other — if your walk crosses between them, either page answers the question. Street-level conditions still differ more than city-level ones do: a shaded side street and an open parking lot half a block apart can be twenty degrees apart underfoot.
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 Arvada 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.