We couldn't reach the live weather feed for Roseville this second, but the seasonal picture still holds: in an average August, Roseville runs highs near 98°F, and in full sun a dark asphalt surface routinely climbs 40–60°F above the air. Refresh in a moment for the live pavement estimate, and in the meantime plan your walk around the coolest hours of the day.
In an average August, Roseville sees highs around 98°F and overnight lows near 65°F. At highs like that, sun-baked pavement can easily top 120–130°F by early afternoon, so the walkable hours cluster around dawn and after sunset. As a seasonal rule of thumb, the safest windows are before about 9:00 AM and after about 6:00 PM.
Roseville loses its all-day safe window in 6 months of the year — April through September — and August is one of them. The year peaks in July at an average high of 99°F against 55°F in December, a 43°F swing that decides how much of the day belongs to your dog.
The nearest place we track is Sacramento, about 16 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 Roseville'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 Roseville, 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.