United StatesAverage weather for Great Falls in August
It's warm in August in Great Falls with an average temperature of 28°C. Temperatures this month range from a low of 24°C to a high of 34°C. At night, you can expect temperatures between 10°C and 16°C.
Start of August
The month of August starts in Great Falls with hot temps, averaging around 31°C during the day and nights around 14°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
Mid August
By mid-August, daytime temps drop to around 29°C, with nights around 14°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
Since it cools down at night, it’s a good idea to wear layers.
End of August
By the end of August, the average daytime temperature in Great Falls is around 27°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
In August, there is an average of 51 mm of precipitation, spread over 5 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Great Falls in August |
New York | ||
|---|---|---|---|
 Average temperature |
28°C | 30°C | |
 Max. temperature |
34°C | 31°C | |
| Min. temperature |
24°C | -5°C | |
 Total precipitation |
51 mm | 79 mm | |
| Rainy days |
5 days | 13 days | |
July
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is August a good time to visit Great Falls?
Looking for great weather? August is a good time to be in Great Falls. The temperatures are nice, and there’s not too much rain.
Temperature records
With 39°C in 2018, Great Falls reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 8°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 22°C.
Check out the climate of Great Falls for all months and discover the best travel time
Daily Temperature in August in Great Falls
This chart shows the average daily high and low temperatures in August for Great Falls, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Great Falls
The chart below shows the average daily precipitation in August for Great Falls, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 5 days of precipitation in Great Falls.
Daily UV index in August in Great Falls
This chart shows the average daily UV index in August in Great Falls, 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.
Temperature in August in Great Falls over the years
This chart shows the average temperature in August in Great Falls, measured in degrees Celsius, over the past few years.
Total precipitation in August in Great Falls over the years
This chart shows the average precipitation in August in Great Falls, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in August for Great Falls
Click on any day in August to get detailed info about the usual weather on that day in Great Falls. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Great Falls
Have you been to Great Falls in August?
Share your weather experience in August in Great Falls.
Average weather in Great Falls by month
Click on a month below to see detailed weather info for Great Falls. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Great Falls for all months at once
