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Normal weather for Montana in August

It's warm in August in Montana with an average temperature of 27°C. Temperatures this month range from a low of 24°C to a high of 31°C. At night, you can expect temperatures between 11°C and 16°C.

In August, there is an average of 53 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southwest.

Montana in August

New York
Temperature Average Temperature
27°C 30°C
Sun High Temp
31°C 31°C
Sun Low Temp
24°C 28°C
Rain Total Precipitation
53 mm 79 mm
Rain Rainy Days
9 days 13 days

Start of August

The month of August starts in Montana with hot temps, averaging around 28°C during the day and nights around 14°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.

With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.

Mid August

By mid-August, daytime temps drop to around 27°C, with nights around 13°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

End of August

By the end of August, the average daytime temperature in Montana is around 26°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.

Because temperatures drop in the evening, wearing layers is recommended. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

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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.

Is August a good time to visit Montana?

Looking for great weather? August is a good time to be in Montana. The temperatures are nice, and there’s not too much rain.

Temperature records for Montana in August

Check out the climate of Montana for all months and discover the best travel time

The climate in Montana is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Montana to get the full picture of the climate.

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Daily Temperature in August in Montana

This chart shows the average daily high and low temperatures in August for Montana, 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 Temperature in August in Montana

Daily Precipitation in August in Montana

The chart below shows the average daily precipitation in August for Montana, 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 9 days of precipitation in Montana.

Daily Precipitation in August in Montana

Daily UV Index in August in Montana

This chart shows the average daily UV index in August in Montana, 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.

Daily UV Index in August in Montana

Temperature in August in Montana Over the Years

This chart shows the average temperature in August in Montana, measured in degrees Celsius, over the past few years.

Temperature in August in Montana Over the Years

Total Precipitation in August in Montana Over the Years

This chart shows the average precipitation in August in Montana, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in August in Montana Over the Years

Daily Climate in August for Montana

Click on any day in August to get detailed info about the usual weather on that day in Montana. Check out the historical temperatures and precipitation over the past 10 years on this day.

Weather experiences in August in Montana

Have you been to Montana in August?

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Average Weather in Montana by Month

Click on a month below to see detailed weather info for Montana. 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 Montana for all months at once

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