Big Sky, MT Weather Forecast and Current Conditions
Current Conditions From Nearby Local Station
Feels Like 33°F
at
Point Forecast at a Glance
7-Day Temperature Trend
Week Ahead Summary
High temperatures remain relatively stable through the week, ranging from 29°F to 41°F. Unsettled weather expected with snow likely on at least 7 days.
Climate Context
This week's forecast shows temperatures running 4°F above the historical average for December. Normal highs for this period are around 31°F with lows around 14°F.
This Date in Weather History
1987 - A major winter storm hit the Great Lakes Region, intensifying explosively as it crossed northern Illinois. High winds and heavy snow created blizzard conditions in southeastern Wisconsin. Winds gusted to 73 mph, and snowfall totals ranged up to 17 inches at LaFarge. The barometric pressure at Chicago IL dropped three quarters of an inch in six hours to 28.96 inches, a record low reading for December. Up to a foot of snow blanketed northern Illinois, and winds in the Chicago area gusted to 75 mph. O'Hare Airport in Chicago was closed for several hours, for only the fourth time in twenty years. High winds derailed train cars at Avon IN. Light winds and partly sunny skies were reported near the center of the storm, a feature typical of tropical storms.
Big Sky, MT 7 Day Weather Forecast Details
Monday Dec 15
Night: A 10 percent chance of snow after 5am. Partly cloudy, with a low around 34. Southwest wind around 16 mph, with gusts as high as 30 mph.
Tuesday Dec 16
Day: A 30 percent chance of snow between 8am and 11am. Partly sunny, with a high near 41. West wind 8 to 11 mph, with gusts as high as 33 mph. New snow accumulation of less than a half inch possible.
Night: Snow, mainly after 5am. Low around 30. South southwest wind 9 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Dec 17
Day: Snow, mainly before 11am. Patchy blowing snow after 11am. High near 37. Breezy, with a south southwest wind 16 to 22 mph becoming west in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Night: Mostly cloudy, with a low around 16. West wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 41 mph.
Thursday Dec 18
Day: Snow likely, mainly after 11am. Mostly cloudy, with a high near 33. South wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Night: Snow. Low around 27. South southwest wind 11 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Dec 19
Day: Snow likely. Mostly cloudy, with a high near 37. South southwest wind 11 to 13 mph, with gusts as high as 36 mph.
Night: A chance of snow. Mostly cloudy, with a low around 19.
Saturday Dec 20
Day: A chance of snow. Partly sunny, with a high near 29.
Night: A chance of snow. Mostly cloudy, with a low around 17.
Sunday Dec 21
Day: A chance of snow. Partly sunny, with a high near 32.
Night: A chance of snow. Mostly cloudy, with a low around 25.
Monday Dec 22
Day: A chance of snow. Partly sunny, with a high near 35.
About Big Sky, MT
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How We Provide Better Local Weather
Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.
Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.
Sun & Moon Monthly
Sunrise 7:59 AM
Sunset 4:44 PM
Last Light 5:18 PM
Moonset 2:10 PM
Contiguous US Extremes
Mon's High Temperature
89 at Palm Springs, CA
Mon's Low Temperature
-15 at Mount Washington, NH
Weather Folklore
If cirrus clouds form in weather with a falling barometer, it is almost sure to rain.
