Glacier National Park (MT)
August
Weather in Glacier National Park, Montana for August 2026
Your guide to Glacier National Park weather in August - trends and predictions
The forecast for the first days of August 2026 in Glacier National Park predicts a temperature of 28.7 °F, which is slightly above the historical average.
In general, the average temperature in Glacier National Park at the beginning of August is 27.6 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 24.9 °F by the end of August.
Glacier National Park experiences moderate rainfall in August, with an average of 9 rainy days and a total precipitation of 36.2 mm.
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Temperatures
Rain 🌧️
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22
Dry days
9
Rainy days
0
Snow days
26°/12°
Temperatures
12 km/h
Avg max wind
52 %
Avg humidity
Glacier National Park Weather August
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Temperatures trend during August in Glacier National Park
See the weather trend as well as the moving average line
August weather in Glacier National Park day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Sunny | 33° /10° | 0 mm | 8 | |
| Aug. 2 | Sunny | 26° /9° | 0 mm | 7 | |
| Aug. 3 | Sunny | 23° /4° | 2.8 mm | 6 | |
| Aug. 4 | Sunny | 25° /3° | 0.4 mm | 6 | |
| Aug. 5 | Sunny | 28° /6° | 0 mm | 7 | |
| Aug. 6 | Sunny | 28° /8° | 0.3 mm | 7 | |
| Aug. 7 | Sunny | 30° /7° | 0 mm | 7 | |
| Aug. 8 | Sunny | 31° /9° | 0 mm | 8 | |
| Aug. 9 | Sunny | 28° /8° | 0.1 mm | 7 | |
| Aug. 10 | Sunny | 28° /8° | 0.1 mm | 7 | |
| Aug. 11 |  Patchy rain possible | 27° /12° | 0.1 mm | 7 | |
| Aug. 12 |  Overcast | 29° /13° | 0 mm | 7 | |
| Aug. 13 |  Partly cloudy | 29° /13° | 0.1 mm | 8 | |
| Aug. 14 | Partly cloudy | 25° /14° | 0 mm | 6 | |
| Aug. 15 | Sunny | 25° /12° | 1.6 mm | 6 | |
| Aug. 16 |  Moderate or heavy rain shower | 21° /12° | 3.2 mm | 5 | |
| Aug. 17 | Sunny | 26° /11° | 0 mm | 7 | |
| Aug. 18 | Sunny | 28° /12° | 0 mm | 7 | |
| Aug. 19 | Sunny | 30° /13° | 0 mm | 8 | |
| Aug. 20 | Partly cloudy | 26° /11° | 0.1 mm | 7 | |
| Aug. 21 | Patchy rain possible | 24° /10° | 0.6 mm | 6 | |
| Aug. 22 | Sunny | 27° /9° | 0 mm | 7 | |
| Aug. 23 | Moderate or heavy rain shower | 30° /10° | 5.5 mm | 7 | |
| Aug. 24 | Partly cloudy | 25° /10° | 0 mm | 6 | |
| Aug. 25 | Overcast | 24° /12° | 0 mm | 6 | |
| Aug. 26 | Sunny | 27° /11° | 0 mm | 7 | |
| Aug. 27 | Patchy rain possible | 28° /14° | 1.6 mm | 6 | |
| Aug. 28 |  Heavy rain at times | 16° /8° | 11.3 mm | 4 | |
| Aug. 29 | Partly cloudy | 22° /8° | 0.6 mm | 5 | |
| Aug. 30 | Sunny | 27° /9° | 0 mm | 7 | |
| Aug. 31 | Sunny | 30° /11° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Glacier National Park in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Glacier National Park forecast closer to your planned date for the most up-to-date weather information.
Change Month
Glacier National Park in August - FAQ
What are the expected maximum and minimum temperatures in Glacier National Park during August?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Glacier National Park during August?
In August, Glacier National Park can expect light to moderate rainfall, totaling 36.2 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Glacier National Park during August?
The average wind speed in Glacier National Park during August is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Glacier National Park
Explore the daily rainfall trends and prepare for Glacier National Parks August weather 💧
Typically, Glacier National Park has 9 rainy days in August with a total of 36.2 mm of rainfall.
UV exposure in Glacier National Park during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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