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Weather in Big Sky, Montana for May 2027

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

    Snow Forecast ❄️

  • Big Sky typically experiences moderate snowfall in May, with an average of 7 snowy days.

    • Temperatures

  • In general, the average temperature in Big Sky at the beginning of May is 8 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 14.3 °F by the end of May.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
18
Dry days
Average rainy days
6
Rainy days
Average snowy days
7
Snow days
Average temperatures
10°/-1°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
61 %
Avg humidity

Big Sky Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
10°
2
Overcast
11°
3
Patchy rain possible
11°
4
Cloudy
5°
5
Light freezing rain
1°
6
Overcast
8°
7
Moderate rain at times
10°
8
Partly cloudy
11°
9
Light freezing rain
8°
10
Partly cloudy
14°
11
Patchy rain possible
15°
12
Partly cloudy
16°
13
Moderate rain at times
18°
14
Sunny
10°
15
Patchy rain possible
7°
16
Moderate or heavy rain shower
5°
17
Patchy moderate snow
0°
18
Light freezing rain
0°
19
Overcast
5°
20
Moderate rain at times
6°
21
Moderate snow
3°
22
Overcast
8°
23
Overcast
11°
24
Patchy rain possible
14°
25
Patchy rain possible
16°
26
Heavy rain at times
16°
27
Patchy rain possible
17°
28
Patchy rain possible
19°
29
Patchy rain possible
17°
30
Moderate or heavy rain shower
7°
31
Moderate rain
8°

Temperatures trend during May in Big Sky

See the weather trend as well as the moving average line

May weather in Big Sky day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
May 1 Sunny
Sunny
 10° /-6° 0 mm 0 cm
May 2 Overcast
Overcast
 11° /0° 0 mm 0 cm
May 3 Patchy rain possible
Patchy rain possible
 11° /0° 0.1 mm 0 cm
May 4 Cloudy
Cloudy
 5° /-1° 0 mm 0 cm
May 5 Light freezing rain
Light freezing rain
 1° /-8° 1.7 mm 0.6 cm
May 6 Overcast
Overcast
 8° /-12° 3.3 mm 2.4 cm
May 7 Moderate rain at times
Moderate rain at times
 10° /0° 2.3 mm 0 cm
May 8 Partly cloudy
Partly cloudy
 11° /0° 0 mm 0 cm
May 9 Light freezing rain
Light freezing rain
 8° /-1° 0.1 mm 0 cm
May 10 Partly cloudy
Partly cloudy
 14° /0° 0 mm 0 cm
May 11 Patchy rain possible
Patchy rain possible
 15° /3° 0.4 mm 0 cm
May 12 Partly cloudy
Partly cloudy
 16° /1° 0 mm 0 cm
May 13 Moderate rain at times
Moderate rain at times
 18° /0° 3 mm 0 cm
May 14 Sunny
Sunny
 10° /-1° 0 mm 0 cm
May 15 Patchy rain possible
Patchy rain possible
 7° /-3° 0.3 mm 0 cm
May 16 Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /-3° 14.8 mm 5.1 cm
May 17 Patchy moderate snow
Patchy moderate snow
 0° /-7° 4.7 mm 1.2 cm
May 18 Light freezing rain
Light freezing rain
 0° /-7° 2.9 mm 0 cm
May 19 Overcast
Overcast
 5° /-9° 0 mm 0 cm
May 20 Moderate rain at times
Moderate rain at times
 6° /-3° 5.5 mm 2 cm
May 21 Moderate snow
Moderate snow
 3° /-3° 7 mm 3.9 cm
May 22 Overcast
Overcast
 8° /-6° 0 mm 0 cm
May 23 Overcast
Overcast
 11° /-1° 0 mm 0 cm
May 24 Patchy rain possible
Patchy rain possible
 14° /2° 0.8 mm 0 cm
May 25 Patchy rain possible
Patchy rain possible
 16° /2° 0.6 mm 0 cm
May 26 Heavy rain at times
Heavy rain at times
 16° /5° 3.1 mm 0 cm
May 27 Patchy rain possible
Patchy rain possible
 17° /4° 0.9 mm 0 cm
May 28 Patchy rain possible
Patchy rain possible
 19° /6° 0.8 mm 0 cm
May 29 Patchy rain possible
Patchy rain possible
 17° /7° 1.4 mm 0 cm
May 30 Moderate or heavy rain shower
Moderate or heavy rain shower
 7° /2° 31.2 mm 0 cm
May 31 Moderate rain
Moderate rain
 8° /3° 9.2 mm 5.4 cm
Next
Important Notice
Our weather forecast for Big Sky in May 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 May - FAQ

What are the expected maximum and minimum temperatures in Big Sky during May?
Prepare for cooler days with highs just around 10° and colder nights, dipping below -1°.

How much rainfall should be expected in Big Sky during May?
Moderate rainfall is anticipated in Big Sky during May, with a total of 94.1 mm spread over approximately 6 days. Considering plans for rainy days is advisable.

Will it snow in Big Sky in May 2027?
Big Sky experiences an average snowfall of 20.6 cm during May, occurring over 7 days.

What are the typical wind conditions in Big Sky during May?
The average wind speed in Big Sky during May is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

Big Sky snow forecast May 2027

Track daily snowfall levels and discover Big Sky’s snowy potential this May ❄️
On average, Big Sky sees 7 snowy days during May, with approximately 20.6 cm of total snowfall.

May rainfall patterns in Big Sky

Explore the daily rainfall trends and prepare for Big Skys May weather 💧
Typically, Big Sky has 6 rainy days in May with a total of 94.1 mm of rainfall.

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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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