August weather forecast
Glasgow, MT

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Weather in August

The heatwave initiated by July extends into August, maintaining the hot Glasgow summer. However, a slight decrease in temperatures may be felt, hinting at the upcoming autumn season. Temperatures in August range from 62.4°F (16.9°C) to 81.7°F (27.6°C), still comfortable for outdoor enjoyment. Although the length of daylight begins to reduce, abundant sunshine fills most of the days. August symbolizes the final act of summer theatrics before the curtains of cooler weather start falling.

Temperature

During August, Glasgow observes a subtle ascent to a still moderately hot 81.7°F (27.6°C) from July's 83.1°F (28.4°C) in the average high-temperature. In Glasgow, in August, the average low-temperature is a comfortable 62.4°F (16.9°C).

Heat index

August's mean heat index is estimated at 80.6°F (27°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

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

Rainfall

In Glasgow, Montana, in August, during 10 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 90.8 rainfall days, and 11.1" (282mm) of precipitation is accumulated.

Snowfall

In Glasgow, snow does not fall in June through September.

Daylight

The average length of the day in August is 14h and 15min.
On the first day of August, sunrise is at 5:43 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:24 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 is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

In August, the average high-temperature and low-temperature are 81.7°F (27.6°C) and 62.4°F (16.9°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 80.6°F (27°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 42%.

What is the average humidity in August?

The average relative humidity in August is 42%.

How much does it rain in August?

In August, the rain falls for 10 days. Throughout August, 1.18" (30mm) of precipitation is accumulated.

When it does not snow?

In Glasgow, snow does not fall in June through September.

How many hours of daylight does Glasgow have in August?

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

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:43 am and sunset at 8:42 pm. On the last day of the month, in Glasgow, sunrise is at 6:24 am and sunset at 7:49 pm MDT.

How long on average sun shines in August in Glasgow?

The average sunshine duration in August is 11.6h.

What is the UV index reading in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Glasgow, MT

Average temperature in August - Glasgow, 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).

Average pressure in August
Glasgow, MT

Average pressure in August - Glasgow, 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).

Average wind speed in August
Glasgow, MT

Average wind speed in August - Glasgow, 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).

Average humidity in August
Glasgow, MT

Average humidity in August - Glasgow, 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%).

Average rainfall in August
Glasgow, MT

Average rainfall in August - Glasgow, 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").

Average rainfall days in August
Glasgow, MT

Average rainfall days in August - Glasgow, 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).

Average snowfall in August
Glasgow, MT

Average snowfall in August - Glasgow, 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").

Average snowfall days in August
Glasgow, MT

Average snowfall days in August - Glasgow, 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).

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

Average daylight in August / Average sunshine in August - Glasgow, 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).

Average sunshine days in August
Glasgow, MT

Average sunshine days in August - Glasgow, 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).

Average UV index in August
Glasgow, MT

Average UV index in August - Glasgow, 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).

Average cloud cover in August
Glasgow, MT

Average cloud cover in August - Glasgow, 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).

Average visibility in August
Glasgow, MT

Average visibility in August - Glasgow, 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).

Glasgow, Montana, USA

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