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Weather in Big Sky, Montana for August 2027

Your guide to Big Sky weather in August - trends and predictions

    Rain 🌧️

  • Big Sky experiences moderate rainfall in August, with an average of 9 rainy days and a total precipitation of 94.4 mm.

    • More

  • Is August a good time to visit Big Sky? check out the best time to travel to Big Sky page.

  • ✨ Is August a good time to visit Big Sky? – Ask the AI Weatherman

Average dry days
22
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/10°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
46 %
Avg humidity

Big Sky Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Thundery outbreaks possible
23°
2
Thundery outbreaks possible
23°
3
Sunny
18°
4
Moderate rain
17°
5
Mist
20°
6
Partly cloudy
24°
7
Thundery outbreaks possible
23°
8
Patchy light snow with thunder
19°
9
Thundery outbreaks possible
20°
10
Partly cloudy
22°
11
Cloudy
22°
12
Partly cloudy
23°
13
Thundery outbreaks possible
20°
14
Light rain
19°
15
Cloudy
20°
16
Light rain
21°
17
Light rain shower
20°
18
Thundery outbreaks possible
22°
19
Partly cloudy
24°
20
Overcast
25°
21
Sunny
24°
22
Light rain
20°
23
Partly cloudy
22°
24
Sunny
20°
25
Sunny
21°
26
Light rain shower
22°
27
Light rain
19°
28
Patchy light rain with thunder
15°
29
Light rain
18°
30
Patchy rain possible
17°
31
Sunny
21°

Temperatures trend during August in Big Sky

See the weather trend as well as the moving average line

August weather in Big Sky day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Thundery outbreaks possible
Thundery outbreaks possible
 23° /13° 0 mm 9.4
Aug. 2 Thundery outbreaks possible
Thundery outbreaks possible
 23° /10° 16 mm 9.3
Aug. 3 Sunny
Sunny
 18° /7° 0 mm 9.3
Aug. 4 Moderate rain
Moderate rain
 17° /6° 12.4 mm 9.2
Aug. 5 Mist
Mist
 20° /7° 0 mm 9.2
Aug. 6 Partly cloudy
Partly cloudy
 24° /11° 0 mm 9.1
Aug. 7 Thundery outbreaks possible
Thundery outbreaks possible
 23° /12° 0.1 mm 9
Aug. 8 Patchy light snow with thunder
Patchy light snow with thunder
 19° /8° 7.5 mm 9
Aug. 9 Thundery outbreaks possible
Thundery outbreaks possible
 20° /10° 0 mm 8.9
Aug. 10 Partly cloudy
Partly cloudy
 22° /10° 0 mm 8.8
Aug. 11 Cloudy
Cloudy
 22° /11° 0 mm 8.8
Aug. 12 Partly cloudy
Partly cloudy
 23° /12° 0.2 mm 8.7
Aug. 13 Thundery outbreaks possible
Thundery outbreaks possible
 20° /11° 3.8 mm 8.6
Aug. 14 Light rain
Light rain
 19° /10° 5.7 mm 8
Aug. 15 Cloudy
Cloudy
 20° /9° 0.5 mm 8.5
Aug. 16 Light rain
Light rain
 21° /10° 2.7 mm 8.4
Aug. 17 Light rain shower
Light rain shower
 20° /10° 1.7 mm 7
Aug. 18 Thundery outbreaks possible
Thundery outbreaks possible
 22° /10° 0.4 mm 8.3
Aug. 19 Partly cloudy
Partly cloudy
 24° /12° 0 mm 8.2
Aug. 20 Overcast
Overcast
 25° /13° 0.1 mm 8.1
Aug. 21 Sunny
Sunny
 24° /12° 0 mm 8
Aug. 22 Light rain
Light rain
 20° /12° 3.5 mm 6
Aug. 23 Partly cloudy
Partly cloudy
 22° /9° 0.6 mm 7.9
Aug. 24 Sunny
Sunny
 20° /9° 0 mm 7
Aug. 25 Sunny
Sunny
 21° /9° 0.3 mm 7
Aug. 26 Light rain shower
Light rain shower
 22° /11° 1.6 mm 3
Aug. 27 Light rain
Light rain
 19° /10° 5.7 mm 2
Aug. 28 Patchy light rain with thunder
Patchy light rain with thunder
 15° /9° 26.7 mm 2
Aug. 29 Light rain
Light rain
 18° /8° 3.4 mm 6
Aug. 30 Patchy rain possible
Patchy rain possible
 17° /7° 1.5 mm 7.3
Aug. 31 Sunny
Sunny
 21° /7° 0 mm 7.2
Next
Important Notice
Our weather forecast for Big Sky 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 Big Sky forecast closer to your planned date for the most up-to-date weather information.
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Big Sky in August - FAQ

What are the expected maximum and minimum temperatures in Big Sky during August?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Big Sky during August?
Moderate rainfall is anticipated in Big Sky during August, with a total of 94.4 mm spread over approximately 9 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Big Sky during August?
The average wind speed in Big Sky during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Big Sky

Explore the daily rainfall trends and prepare for Big Skys August weather 💧
Typically, Big Sky has 9 rainy days in August with a total of 94.4 mm of rainfall.

UV exposure in Big Sky during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Location coordinates Where is Big Sky?

Get accurate weather forecasts for Big Sky, located at latitude 45.285 and longitude -111.368. Stay updated with localized weather information tailored for Big Sky.

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