Utah weather in August
There's a real gradient across Utah in August: 98° afternoons in Zion National Park, 88° in Park City.
Based on 4 weather stations. Four stations split between the Wasatch and the red-rock south — the two Utahs travelers actually visit, which rarely have the same weather on the same day.
Salt Lake Valley
Highs near 92°, nights around 67°, and 0.6 in of rain in a typical August.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Salt Lake City | 92° / 67° | 2 | Heat holds, with the odd monsoon burst for drama. |
The Wasatch
Highs near 88°, nights around 47°, and 0.8 in of rain in a typical August.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Park City | 88° / 47° | 3 | Peak summer up here still means a cold sunrise. |
Red Rock Country
Highs 96–98°, nights 64–69°, and 0.9–1.6 in of rain in a typical August.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Moab | 96° / 64° | 3 | Still brutal, but the storms make the sky worth watching. |
| Zion National Park | 98° / 69° | 3 | Hot, moody, and the wettest stretch of the desert summer. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.