Montana (Glacier National Park)
August
Weather in Montana for August 2026
Your guide to Montana weather in August - trends and predictions
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Until now, August 2026 in Montana is cooler than usual, with temperatures averaging 23.7 °F, this is 2.1 °F below the typical seasonal average.
The forecast for the upcoming days in Montana predicts a temperature of 27.9 °F, which is slightly above the historical average.
In general, the average temperature in Montana at the beginning of August is 25.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 24.9 °F by the end of August.
Montana 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
Montana Weather August
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What’s the Weather Like in Montana This August?
Discover the average temperatures and weather trends across Montana’s cities this August.
Temperatures trend during August in Montana
See the weather trend as well as the moving average line
August weather in Montana day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Sunny | 30° /14° | 0 mm | 8 | |
| Aug. 2 |  Partly cloudy | 26° /14° | 2.2 mm | 8 | |
| Aug. 3 | Partly cloudy | 27° /11° | 0.4 mm | 8 | |
| Aug. 4 |  Moderate or heavy rain shower | 22° /11° | 2.8 mm | 6 | |
| Aug. 5 |  Overcast | 27° /12° | 0 mm | 7 | |
| Aug. 6 |  Heavy rain at times | 26° /11° | 2 mm | 7 | |
| Aug. 7 | Moderate rain at times | 23° /11° | 0.8 mm | 6 | |
| Aug. 8 | Partly cloudy | 23° /10° | 0 mm | 7 | |
| Aug. 9 | Sunny | 28° /12° | 0 mm | 5.5 | |
| Aug. 10 | Sunny | 29° /8° | 0 mm | 5.2 | |
| Aug. 11 | Sunny | 28° /6° | 0 mm | 4.7 | |
| Aug. 12 | Sunny | 23° /7° | 2 mm | 6.8 | |
| Aug. 13 |  Patchy rain possible | 18° /5° | 3.7 mm | 5 | |
| Aug. 14 | Sunny | 25° /3° | 0 mm | 6 | |
| Aug. 15 | Sunny | 28° /5° | 0 mm | 7 | |
| Aug. 16 | Sunny | 31° /9° | 0 mm | 8 | |
| Aug. 17 | Sunny | 29° /11° | 0 mm | 7 | |
| Aug. 18 | Sunny | 28° /7° | 0 mm | 7 | |
| Aug. 19 | Sunny | 30° /8° | 0 mm | 8 | |
| Aug. 20 | Sunny | 32° /8° | 0 mm | 8 | |
| Aug. 21 | Sunny | 30° /9° | 0 mm | 8 | |
| Aug. 22 | Sunny | 32° /9° | 0 mm | 8 | |
| 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 Montana 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 Montana forecast closer to your planned date for the most up-to-date weather information.
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Montana in August - FAQ
What are the expected maximum and minimum temperatures in Montana 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 Montana during August?
In August, Montana 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 Montana during August?
The average wind speed in Montana during August is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Montana
Explore the daily rainfall trends and prepare for Montanas August weather 💧
Typically, Montana has 9 rainy days in August with a total of 36.2 mm of rainfall.
UV exposure in Montana during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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