August weather forecast
Saint Marie, MT

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Weather in August

August, the last month of the summer in Saint Marie, is another warm month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 81.7°F (27.6°C).

Temperature

August brings a marginal elevation to a still warm 81.7°F (27.6°C) from July's 83.1°F (28.4°C) in Saint Marie's average high-temperatures. During August, the average low-temperature in Saint Marie is an enjoyable 62.4°F (16.9°C).

Heat index

During August, the heat index is appraised at 80.6°F (27°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
Heat index determinations are made taking into account the shade and light air movements. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

With an average relative humidity of 42%, August is the least humid month in Saint Marie.

Rainfall

In August, the rain falls for 10 days. Throughout August, 1.18" (30mm) of precipitation is accumulated. In Saint Marie, Montana, during the entire year, the rain falls for 90.8 days and collects up to 11.1" (282mm) of precipitation.

Snowfall

In Saint Marie, snow does not fall in June through September.

Daylight

In August, the average length of the day in Saint Marie, Montana, is 14h and 16min.
On the first day of August in Saint Marie, sunrise is at 5:42 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:49 pm MDT.

Sunshine

The average sunshine in August is 11.6h.

UV index

The average daily maximum UV index in August in Saint Marie is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What are August temperatures in Saint Marie?

In August, the average high-temperature and low-temperature in Saint Marie are 81.7°F (27.6°C) and 62.4°F (16.9°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 80.6°F (27°C).

What is the least humid month in Saint Marie?

With an average relative humidity of 42%, August is the least humid month in Saint Marie, Montana.

What is the average humidity in August in Saint Marie?

In Saint Marie, the average relative humidity in August is 42%.

How many days does it rain in August in Saint Marie?

In Saint Marie, in August, during 10 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in Saint Marie?

In Saint Marie, Montana, snow does not fall in June through September.

How many hours of daylight does Saint Marie have in August?

In August, the average day length is 14h and 16min.

When are sunrise and sunset in August in Saint Marie?

On the first day of August in Saint Marie, sunrise is at 5:42 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:49 pm MDT.

How many hours of sunshine does Saint Marie have in August?

In August, the average sunshine duration in Saint Marie is 11.6h.

How high is the UV index in August in Saint Marie?

In August, the average daily maximum UV index in Saint Marie is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
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
Saint Marie, MT

Average temperature in August - Saint Marie, MT
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (23.7°F).

  • Average low temperature in August: 62.4°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (10.2°F).

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Average pressure in August
Saint Marie, MT

Average pressure in August - Saint Marie, MT
  • Average pressure in August: 29.88"Hg

The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in August
Saint Marie, MT

Average wind speed in August - Saint Marie, MT
  • Average wind speed in August: 9.9mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).

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Average humidity in August
Saint Marie, MT

Average humidity in August - Saint Marie, MT
  • Average humidity in August: 42%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in August
Saint Marie, MT

Average rainfall in August - Saint Marie, MT
  • Average rainfall in August: 1.18"

The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.35").

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Average rainfall days in August
Saint Marie, MT

Average rainfall days in August - Saint Marie, MT
  • Average rainfall days in August: 10 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in August
Saint Marie, MT

Average snowfall in August - Saint Marie, MT
  • Average snowfall in August: 0"

The month with the highest snowfall is December (2.6").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Saint Marie, MT

Average snowfall days in August - Saint Marie, MT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in August /
Average sunshine in August
Saint Marie, MT

Average daylight in August / Average sunshine in August - Saint Marie, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in August
Saint Marie, MT

Average sunshine days in August - Saint Marie, MT
  • Average sunshine days in August: 18.3 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).

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Average UV index in August
Saint Marie, MT

Average UV index in August - Saint Marie, MT
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in August
Saint Marie, MT

Average cloud cover in August - Saint Marie, MT
  • Average cloud cover in August: 17

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 16).

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Average visibility in August
Saint Marie, MT

Average visibility in August - Saint Marie, MT
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Saint Marie, Montana, USA

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