Saint Mary Falls
About
Saint Mary Falls is a waterfall in Glacier National Park in Montana, about 10 miles from the town of St. Mary. It sits at roughly 4,500 feet. Summer is the most comfortable time to visit. Typical averages from a nearby weather station show July and August highs around 73°F with lows in the mid-40s, and those months see the fewest wet days of the year. The St. Mary Falls Trail starts just 0.2 miles away. Florence Falls Trail is about 3 miles off, and the Siyeh Pass Trail and Siyeh Bend Cutoff are both within about 3.5 miles.
Waterfall Facts
Elevation
4,516 ft
Elevation from USGS 3D Elevation Program terrain data (about 10 m resolution).
Location
Saint Mary Falls
Montana
Name and location: U.S. Geological Survey, Geographic Names Information System (GNIS). Elevation: USGS 3D Elevation Program. View the GNIS record.
Facts about this place
When to go
Best time to go: Jun–Sep. The mildest months here, with typical highs of 63–73°F and lows of 39–46°F.
Typical monthly averages (not a forecast) from the St. Mary 1 Ssw, MT weather station, 9.8 mi away. High / low in °F.
- Jan32° high15° low
- Feb31° high14° low
- Mar38° high20° low
- Apr45° high28° low
- May56° high35° low
- Jun63° high42° low
- Jul73° high46° low
- Aug73° high45° low
- Sep63° high39° low
- Oct49° high32° low
- Nov37° high25° low
- Dec31° high17° low
Where it is
- Glacier National Park · National Park Service
- Nearest town
- St. Mary, Montana · 10 mi
Source: NPS Land Resources boundaries; USGS GNIS populated places
Conditions
Active alerts for Glacier National Park as of Oct 9, 2026:
Going-to-the-Sun Road is Open for 2026 Season
Information · posted Aug 24, 2026
Source: NPS Alerts API
Nearby
St. Mary Falls TrailHikingPhoto: NPS / public domain0.2 mi
Saint Mary RiverCanoeingPhoto: Royalbroil, CC BY-SA 3.0 (via Wikimedia Commons)2.4 mi- Florence Falls TrailHiking3.2 mi
Siyeh Bend CutoffHikingPhoto: TerryDOtt, CC BY 2.0 (via Flickr)3.3 mi
Siyeh BendHikingPhoto: Suzie Tremmel, CC BY 2.0 (via Flickr)3.4 mi
Siyeh Pass TrailHikingPhoto: alexblondeau, CC BY-SA 3.0 (via Wikimedia Commons)3.5 mi
Rising Sun TrailHikingPhoto: SridharSaraf, CC BY-SA 2.0 (via Flickr)4.7 mi
Rose Creek TrailHikingPhoto: w_lemay, CC BY-SA 2.0 (via Flickr)4.8 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
Is Saint Mary Falls open right now?
Closure in the area
There's a closure order in Glacier National Park. It doesn't name Saint Mary Falls, so check the source for the area it covers.
Going-to-the-Sun Road Seasonal Closure
Park closure covering Glacier National Park · NPS · Glacier National Park
As of · Source: NPS · Glacier National Park. Agencies don't list every closure — check before you go.
Best time to visit Saint Mary Falls
Best months: June–September. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
32° / 15°
15 wet
Feb
31° / 14°
14 wet
Mar
38° / 20°
16 wet
Apr
45° / 28°
14 wet
May
56° / 35°
13 wet
Jun
63° / 42°
12 wet
Jul
73° / 46°
9 wet
Aug
73° / 45°
8 wet
Sep
63° / 39°
9 wet
Oct
49° / 32°
12 wet
Nov
37° / 25°
14 wet
Dec
31° / 17°
15 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at St. Mary 1 Ssw, MT, 9.8 mi away at 4,555 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
