Climateby Month

Big Sky, MT weather in June

NOAA 1991-2020 normals and daily records · Big Sky all year

Big Sky is mild in June, with frequent rain: highs average 67°F and nights drop to about 36°F. Expect about 14 wet days.

Normal high
67°F
Normal low
36°F
Wet days
14
3.2 in total
Daylight
15.6 h

How June changes from start to finish

Normal values at the start and end of June
June 1June 30
Normal high63°F72°F
Normal low34°F39°F
Chance of a wet day51%40%
Sunrise / sunset5:40 am / 9:05 pm5:41 am / 9:17 pm
Daylight15.4 h15.6 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).

What kind of days to expect

  • Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)18 of 30
  • Hot dayshigh 90°F or more0 of 30
  • Wet daysat least 0.01 in of rain or melted snow14 of 30
  • Notable rainat least 0.10 in9 of 30
  • Freezing nightslow 32°F or below10 of 30

Average days per June, counted from daily records for each year 1991-2020.

Rain in June

Normal precipitation is 3.2 in; a dry June brings about 2.2 in and a wet one about 3.8 in (25th and 75th percentiles). About 1 day brings half an inch or more.

How June varies from year to year

  • Warmest June, 1991-20202007: average high 73°F
  • Coolest June2014: average high 63°F
  • Highest reading87°F (June 27, 2002)
  • Lowest reading19°F (June 5, 1998)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

June compared with May and July

MayJuneJuly
Normal high58°F67°F78°F
Normal low30°F36°F41°F
Wet days141410
Comfortable days121817
Daylight14.9 h15.6 h15.2 h

Highs change by +9°F from May and +11°F into July.

Nearby alternatives in June

How Big Sky ranks in June

  • Normal high365th warmest of 378 cities; 6th of 6 in Montana
  • Wet days356th driest of 378

What to pack for Big Sky in June

  • A warm jacket – lows near 36°F, highs near 67°F
  • Layers – afternoons near 67°F but nights near 36°F
  • A rain jacket or umbrella – rain on about 14 days

Heating and cooling

June has 408 heating degree days and 0 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.

Questions

How cold is Big Sky in June?

The normal high is 67°F and the normal low is 36°F. From 1991 to 2020 the coldest June reading was 19°F (June 5, 1998).

Does it rain a lot in Big Sky in June?

About 14 days in June have at least 0.01 in of precipitation, and the normal total is 3.2 in.

Is June a good time to visit Big Sky?

June ranks 2nd of 12 months on our comfort score for Big Sky (77 out of 100). It has about 18 comfortable days (judged by temperature only). The best months are June, July and September.

Where the numbers come from

  • Temperature and rain: Big Sky 2WNW (USC00240775), 2.1 mi ESE of the city center, 6,590 ft (630 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Not available for this location: snowfall, snow depth, frost dates, humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).