August weather forecast
Kalispell, MT

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A gorgeous sunset over the tranquil city of Kalispell, Montana
A gorgeous sunset over the tranquil city of Kalispell, Montana

Weather in August

Continuing the trend of summer, August exhibits similar weather patterns to July. This month tends to be hot, and while rainfall slightly increases compared to July, the weather still remains relatively dry. The days are long, bright, and usually clear, inviting the residents to partake in outdoor activities. Climatologically, August captivates with 0.55" (14mm) of meager rainfall, no snowfall, and temperatures hovering from 46.4°F (8°C) to 77.4°F (25.2°C). With the summer gradually winding down, locals start preparing to welcome the fall.

Temperature

The average high-temperature during August registers at a still warm 77.4°F (25.2°C), maintaining a close resemblance to the previous month. Throughout August, Kalispell notes a dramatic plunge from the daily high to an average low-temperature of 46.4°F (8°C).

Humidity

The least humid month is August, with an average relative humidity of 55%.

Rainfall

The month with the least rainfall is August, when the rain falls for 6.6 days and typically collects 0.55" (14mm) of precipitation.

Snowfall

June through August are months without snowfall.

Daylight

The average length of the day in August is 14h and 15min.
On the first day of the month, sunrise is at 6:14 am and sunset at 9:13 pm. On the last day of August, sunrise is at 6:54 am and sunset at 8:19 pm MDT.

Sunshine

The average sunshine in August is 11.6h.

UV index

In August, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 4 in August translates into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Kalispell in August?

In Kalispell, 77.4°F (25.2°C) is the average high-temperature and 46.4°F (8°C) is the average low-temperature during August.

What is the least humid month?

With an average relative humidity of 55%, August is the least humid month.

What is the average humidity in August?

In August, the average relative humidity is 55%.

What is the driest month?

The month with the least rainfall is August, when the rain falls for 6.6 days and typically collects 0.55" (14mm) of precipitation.

How many days does it rain in August?

In Kalispell, in August, during 6.6 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When it does not snow?

In Kalispell, snow does not fall in June through August.

Does it snow in August?

In Kalispell, in August, it doesn't snow. In September, it regularly snows.

What is the average length of the day in August?

The average day length in August is 14h and 15min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:14 am and sunset at 9:13 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:19 pm MDT.

How long on average sun shines in August?

In August, the average sunshine duration is 11.6h.

How high is the UV index in August?

In Kalispell, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Kalispell, MT

Average temperature in August - Kalispell, MT
  • Average high temperature in August: 77.4°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (25.9°F).

  • Average low temperature in August: 46.4°F

The month with the highest average low temperature is August (46.4°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

Average pressure in August
Kalispell, MT

Average pressure in August - Kalispell, MT
  • Average pressure in August: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Kalispell, MT

Average wind speed in August - Kalispell, MT
  • Average wind speed in August: 3.7mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in August
Kalispell, MT

Average humidity in August - Kalispell, MT
  • Average humidity in August: 55%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).

Average rainfall in August
Kalispell, MT

Average rainfall in August - Kalispell, MT
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is August (0.55").

Average rainfall days in August
Kalispell, MT

Average rainfall days in August - Kalispell, MT
  • Average rainfall days in August: 6.6 days

The month with the highest number of rainy days is April (17.9 days).
The month with the least rainy days is August (6.6 days).

Average snowfall in August
Kalispell, MT

Average snowfall in August - Kalispell, MT
  • Average snowfall in August: 0"

The month with the highest snowfall is January (11.3").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Kalispell, MT

Average snowfall days in August - Kalispell, MT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (21.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in August /
Average sunshine in August
Kalispell, MT

Average daylight in August / Average sunshine in August - Kalispell, MT
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Kalispell, MT

Average sunshine days in August - Kalispell, MT
  • Average sunshine days in August: 21.8 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (6.8 days).

Average UV index in August
Kalispell, MT

Average UV index in August - Kalispell, MT
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in August
Kalispell, MT

Average cloud cover in August - Kalispell, MT
  • Average cloud cover in August: 15

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 15).

Average visibility in August
Kalispell, MT

Average visibility in August - Kalispell, MT
  • Average visibility in August: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

Kalispell, Montana, USA

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