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United StatesThe weather in August in West Yellowstone
It's warm in August in West Yellowstone with an average temperature of 24°C. Temperatures this month range from a low of 21°C to a high of 28°C. At night, you can expect temperatures between 1°C and 7°C.
Looking for great weather? August is a good time to be in West Yellowstone. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for West Yellowstone, Montana. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 33°C in 2018, West Yellowstone reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 7°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 16°C.
Rainfall amount
In August, there is an average of 31 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Daily weather in August for West Yellowstone
Click on any day in August to get detailed info about the usual weather on that day in West Yellowstone. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| West Yellowstone | New York | |
|---|---|---|
| Average temperature | 24°C | 30°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 1°C | -5°C |
| Total precipitation | 31 mm | 79 mm |
| Rainy days | 6 days | 13 days |
Start of August
The month of August starts in West Yellowstone with warm temps, averaging around 25°C during the day and nights around 6°C.
Mid August
By mid-August, daytime temps stay steady at around 25°C, with nights around 5°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of August
By the end of August, the average daytime temperature in West Yellowstone is around 23°C, while nighttime temps are about 3°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of West Yellowstone for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in August in West Yellowstone, Montana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in West Yellowstone
Temperature in August in West Yellowstone over the years
Precipitation charts
These charts show the average amount of precipitation in August in West Yellowstone, Montana. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in West Yellowstone
Total precipitation in August in West Yellowstone over the years
Daily UV index in August in West Yellowstone
This chart shows the average daily UV index in August in West Yellowstone, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in West Yellowstone
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Average weather in West Yellowstone by month
Click on a month below to see detailed weather info for West Yellowstone. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.