Weather

For a current weather forecast of the entire park, please check Todays Forecast. More detailed forecasts can be found at West Glacier and St. Mary.

Glacier's western valleys generally receive the most rainfall. Daytime temperatures can exceed 90 degrees F. It is frequently 10 to 15 degrees cooler at higher elevations. Strong winds and sunny days predominate on the east side of the park. Overnight lows throughout the park can drop to near 20 degrees F, and snow can fall anytime. In August of 1992, a foot of snow fell on the northeastern corner of Glacier. Prepare for a variety of conditions and pack accordingly. You may start the day in a T-shirt and shorts, and need a parka by evening. Dress in layers. Always bring raingear.

Precipitation		Jan		Feb		Mar		Apr		May		Jun		Jul		Aug		Sep		Oct		Nov		Dec
30 yr average in inches		3.40		2.37		1.86		1.81		2.57		3.28		1.75		1.64		2.06		2.33		3.10		3.30
30 yr low in inches		0.16		0.33		0.43		0.27		0.91		0.75		0.00		0.00		0.02		0.08		0.65		0.68
30 yr high in inches		7.07		5.10		4.13		3.45		6.13		6.94		5.11		5.14		6.17		5.87		7.53		7.72
Ave number of days with precipitation over 0.01 inches (rain and/or snow)		17		13		13		11		13		13		9		9		9		11		15		17
Average Snowfall in inches		39.6		22.5		14.5		3.5		0.4		0.2		0		0		0.1		2.0		17.2		37.5
Temperature		Jan		Feb		Mar		Apr		May		Jun		Jul		Aug		Sep		Oct		Nov		Dec
Average Max		28.5		34.7		41.9		52.9		64.1		71.2		79.1		78.1		66.7		52.7		37.3		30.0
Average Min		14.9		18.8		22.9		29.7		37.1		43.7		47.2		46.3		38.8		31.8		24.9		18.4
Maximum High		50		58		66		83		90		91		99		99		95		77		65		52
Maximum Low		-35		-32		-30		3		13		24		31		26		18		-3		-29		-36