Glacier National Park
Weather History, Monthly Averages & Best Time to Visit
MTRocky Mountain4,500 ft
Look Up a Specific Date
Best Time to Visit
RecommendedJuly - September
July and August have the most accessible trails and roads.
AvoidOctober - May (many roads and facilities closed due to snow)
Tip: Going-to-the-Sun Road typically opens fully in late June or early July.
Monthly Climate Averages
Historical temperature and precipitation averages for Kalispell, MT, based on 55+ years of weather data.
Warmest MonthAugustAvg High: 82°F / Low: 48°F
Coldest MonthJanuaryAvg High: 30°F / Low: 15°F
Jan
30°/ 15°
💧 2.7"
❄️ 1.3"
Feb
36°/ 19°
💧 2.4"
❄️ 1.2"
Mar
45°/ 25°
💧 2.3"
❄️ 1.1"
Apr
56°/ 31°
💧 2.9"
❄️ 0.8"
May
65°/ 39°
💧 3.9"
❄️ 1.0"
Jun
72°/ 45°
💧 4.9"
❄️ 3.5"
Jul
82°/ 49°
💧 4.2"
Aug
82°/ 48°
💧 3.9"
Sep
70°/ 40°
💧 3.8"
❄️ 0.2"
Oct
55°/ 30°
💧 3.0"
❄️ 1.1"
Nov
40°/ 24°
💧 2.8"
❄️ 1.2"
Dec
31°/ 18°
💧 2.8"
❄️ 1.4"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Data from Kalispell, MT. Expect ~16°F cooler at elevation.
Seasonal Weather
Gateway Cities
Nearby Parks
Official NPS Websitenps.gov/glac
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