Weather forecast for 10 days
Big Sky, MT

Weather forecast for the weekend

Saturday, May 17.

Cloudy
5:50 am

8:52 pm
MDT
Cloudy
55°F / 34°F
  • Wind: 8mph SSW
  • Humidity: 57%
  • Precip. probability: 22%
  • Precipitation: 0.12"
  • UV index: 3
On Saturday, May 17, low clouds will cover the sky.
Minimal precipitation is forecasted. The temperature is predicted to vary between a refreshing 55.4°F and an icy 33.8°F.
Saturday's peak temperature is anticipated to align with May's common high of 52°F.
Sunrise will be at 5:50 am and sunset at 8:52 pm; the daylight will last for 15h and 2min.

Sunday, May 18.

Rain
5:49 am

8:53 pm
MDT
Rain
48°F / 32°F
  • Wind: 9mph N
  • Humidity: 76%
  • Precip. probability: 60%
  • Precipitation: 0.47"
  • UV index: 3
On Sunday, May 18, expect showery conditions to last throughout the day.
The chance of rain is high, and precipitation will be moderate. Temperature fluctuations between a brisk 48.2°F and an icy 32°F are expected.
The expected high on Sunday is expected to be slightly cooler than the typical May maximum of 52°F.
Sunrise will be at 5:49 am and sunset at 8:53 pm; the daylight will last for 15h and 4min.

Frequently asked questions

What is the weather forecast for Big Sky for Saturday?
On Saturday, in Big Sky, dense clouds will linger over the area.
Will it rain on Saturday?
On Saturday, there is a low probability of minimal rainfall in Big Sky.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature in Big Sky will be 55.4°F, while the minimum temperature will be 33.8°F.
What is the weather forecast for Big Sky for Sunday?
On Sunday, the forecast includes rain showers and damp conditions lasting all day.
Will it rain on Sunday?
Moderate precipitation of 0.47" is expected on Sunday. The chance of rainfall is 60%.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 48.2°F, while the minimum temperature will be 32°F.
What is the weather forecast for Big Sky for the next ten days?
In Big Sky, a combination of snow-filled, wet and gloomy weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rain is anticipated on Tuesday, Friday through Sunday in Big Sky. Wednesday, with moderate precipitation of 0.55", will be the day with the most rainfall.
Will it snow in the next ten days?
Snow is expected on Wednesday, Thursday, Monday and next Tuesday in Big Sky. Wednesday, with heavy precipitation of 0.55", will be the day with the most snowfall.
How warm will it be in the next ten days?
The maximum temperature will vary between 44.6°F and 60.8°F, while the minimum temperature will be between 30.2°F and 35.6°F.
What will be the warmest and the coldest days?
Next Thursday will be the warmest day, with a maximum temperature of 60.8°F. The coldest days will be Tuesday, Wednesday and Monday, with a maximum of 44.6°F.

Long-term weather forecast

TueMay 13.
  • 45°F
  • 34°F
Rain
Rain
  • Wind: 6mph N
  • Humidity: 78%
  • UV index: 2
  • Precip. probability: 79%
  • Precipitation: 0.51"
  • 5:55 am 8:48 pm MDT
WedMay 14.
  • 45°F
  • 32°F
Rain / Snow
Rain / Snow
  • Wind: 8mph WNW
  • Humidity: 77%
  • UV index: 3
  • Precip. probability: 91%
  • Precipitation: 0.55"
  • 5:54 am 8:49 pm MDT
ThuMay 15.
  • 48°F
  • 32°F
Snow to Rain
Snow to Rain
  • Wind: 9mph W
  • Humidity: 65%
  • UV index: 6
  • Precip. probability: 38%
  • Precipitation: 0.08"
  • 5:52 am 8:50 pm MDT
FriMay 16.
  • 50°F
  • 32°F
PM Showers
PM Showers
  • Wind: 8mph WSW
  • Humidity: 66%
  • UV index: 5
  • Precip. probability: 42%
  • Precipitation: 0.16"
  • 5:51 am 8:51 pm MDT
SatMay 17.
  • 55°F
  • 34°F
Cloudy
Cloudy
  • Wind: 8mph SSW
  • Humidity: 57%
  • UV index: 3
  • Precip. probability: 22%
  • Precipitation: 0.12"
  • 5:50 am 8:52 pm MDT
SunMay 18.
  • 48°F
  • 32°F
Rain
Rain
  • Wind: 9mph N
  • Humidity: 76%
  • UV index: 3
  • Precip. probability: 60%
  • Precipitation: 0.47"
  • 5:49 am 8:53 pm MDT
MonMay 19.
  • 45°F
  • 32°F
AM Rain / Snow Showers
AM Rain / Snow Showers
  • Wind: 10mph NNW
  • Humidity: 77%
  • UV index: 4
  • Precip. probability: 47%
  • Precipitation: 0.2"
  • 5:48 am 8:54 pm MDT
TueMay 20.
  • 52°F
  • 30°F
Rain / Snow Showers
Rain / Snow Showers
  • Wind: 11mph W
  • Humidity: 62%
  • UV index: 5
  • Precip. probability: 40%
  • Precipitation: 0.2"
  • 5:47 am 8:55 pm MDT
WedMay 21.
  • 55°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph WSW
  • Humidity: 51%
  • UV index: 7
  • Precip. probability: 23%
  • Precipitation: 0"
  • 5:46 am 8:57 pm MDT
ThuMay 22.
  • 61°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SW
  • Humidity: 44%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:45 am 8:58 pm MDT
Models point to a combination of snowy and cold, showery and overcast weather is predicted.
Rain is forecasted for Tuesday, Friday through Sunday.
Snow is anticipated on Wednesday, Thursday, Monday and next Tuesday. With heavy precipitation of 0.55", most snowfall is expected on Wednesday.
Substantial differences in temperature are forecasted in the upcoming days. Forecast highs will fluctuate between 44.6°F and 60.8°F, while the overnight low will be nearly unchanged, as the overnight low will fall between 30.2°F and 35.6°F.
Next Thursday is expected to be the warmest, reaching up to 60.8°F; the coldest days will be Tuesday, Wednesday and Monday, with a maximum of 44.6°F.
Updated: May 13, 2025 @ 15:17:05 UTC
Published by: Weather Atlas | About Us
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Weather Forecasting & Climate
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