Big Sky, MT weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Big Sky now
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Big Sky weather by the hour
Big Sky weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Big Sky.
This week in Big Sky
Sunrise, sunset and moon in Big Sky
What is the weather usually like in Big Sky?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 75°F average high
- Januarycoldest month · 6°F average low
- 23.3 inprecipitation per year · 592 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Big Sky: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station BIG SKY 2WNW, MT US (USC00240775), adjusted for the elevation of Big Sky.
Big Sky weather month by month
Sunrise and sunset in Big Sky through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:58 AM | 5:10 PM | 9 h 12 min |
| February | 7:24 AM | 5:54 PM | 10 h 30 min |
| March | 7:35 AM | 7:32 PM | 11 h 57 min |
| April | 6:37 AM | 8:12 PM | 13 h 34 min |
| May | 5:53 AM | 8:50 PM | 14 h 56 min |
| June | 5:35 AM | 9:16 PM | 15 h 41 min |
| July | 5:50 AM | 9:11 PM | 15 h 21 min |
| August | 6:25 AM | 8:34 PM | 14 h 8 min |
| September | 7:02 AM | 7:37 PM | 12 h 35 min |
| October | 7:40 AM | 6:41 PM | 11 h 1 min |
| November | 7:22 AM | 4:57 PM | 9 h 34 min |
| December | 7:56 AM | 4:45 PM | 8 h 49 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Big Sky?
Big Sky has a subarctic climate. The warmest month is July, with an average high of 75°F (24°C), and the coldest is January, with average lows of 6°F (-14°C).
It gets about 23.3 inches (592 mm) of precipitation a year. The wettest month is June and the driest is July.
The best time to visit Big Sky is June to September. At 7,218 ft of elevation, nights are cool even in summer. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Big Sky
Weather in towns near Big Sky
Questions about the weather in Big Sky
What is the hottest month in Big Sky?
July, with an average high of 75°F (24°C).
What is the coldest month in Big Sky?
January, with an average low of 6°F (-14°C).
How much does it rain in Big Sky?
About 23.3 inches (592 mm) a year; the wettest month is June.
Does it snow in Big Sky?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Big Sky?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Big Sky have?
Subarctic (Köppen Dfc).
What is the weather like in Big Sky in November?
Highs average 35°F and lows 13°F, with about 1.6 inches of precipitation.
What time is sunrise in Big Sky?
Around 7:22 AM in mid-November, and sunset around 4:57 PM. Today’s exact times are shown above.
Where does this Big Sky weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Big Sky.
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