Thermopolis climate

Typical historical weather for Thermopolis, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Thermopolis.

Annual average

8.2°C

across all months

Warmest month

32.1°C

Jul average high

Coolest month

-12.2°C

Jan average low

Annual rainfall

328mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

40°C

19 July 2021

Coldest day

-33.7°C

30 January 2023

Wettest day

26.7mm

24 September 2016

Windiest day

7.6m/s

5 May 2025