Thermopolis Weather in July

July in Thermopolis brings very high temperatures, with daytime highs of 33°C (91°F) and nights around 14°C (57°F). Only 13 mm (0.5 in) of rainfall is typical, making it a largely dry month.

Rainfall in Thermopolis in July

On average, there are about 7 days with rain during this month, averaging 13 mm (0.5 in). The occasional light shower is possible, but rain is rarely an issue this month.

Temperature in Thermopolis in July

The excellent temperature in Thermopolis in July makes it a solid month to visit, with 33°C (91°F) during the day and 14°C (57°F) at night. It's usually most comfortable outside during the morning and later in the day. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. Keep in mind that temperatures can exceed these averages. Dress for the heat and stay hydrated, especially during peak sun hours.

If you prefer dry days with pleasant temperatures, May, June and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.