Summit forecast, next 72 hours
- New snow0 in
- Strongest gusts25 mphWednesday
- Coldest19°F
| Forecast | Snow | Gusts | Temp °F |
|---|---|---|---|
| Columbus DayMostly Sunny | 0 in | 15 mph | High 33° |
| TonightMostly Clear | 0 in | 15 mph | Low 19° |
| TuesdaySunny | 0 in | 15 mph | High 37° |
| Tuesday NightMostly Clear | 0 in | 20 mph | Low 26° |
| WednesdayMostly Sunny | 0 in | 25 mph | High 39° |
| Wednesday NightMostly Clear | 0 in | 10 mph | Low 30° |
Snow is the forecast new accumulation at the summit grid point. Dots use Road Travel’s driving-risk scale.
Typical weather by month
Monthly normals from the long-term stations nearest the summit. None sits exactly on the pass, so each column says how far away and how high it is.
| Month | Flattop Mountain 6,300 ft · 10 mi northwest of the summit | St. Mary (Climate Reference Network) 4,555 ft · 13 mi east of the summit | St. Mary 4,560 ft · 13 mi east of the summit |
|---|---|---|---|
| Precip (in) | High / low °F | High / low °F | |
| Jan | 9.8 | 32° / 15° | 29° / 12° |
| Feb | 6.9 | 31° / 15° | 32° / 14° |
| Mar | 7.8 | 38° / 20° | 38° / 20° |
| Apr | 5.4 | 46° / 28° | 47° / 26° |
| May | 4.7 | 56° / 35° | 57° / 35° |
| Jun | 5.8 | 63° / 42° | 64° / 41° |
| Jul | 2.1 | 73° / 46° | 75° / 46° |
| Aug | 2.0 | 73° / 45° | 74° / 44° |
| Sep | 3.5 | 63° / 39° | 63° / 38° |
| Oct | 6.0 | 49° / 32° | 49° / 31° |
| Nov | 9.3 | 37° / 25° | 36° / 22° |
| Dec | 9.3 | 31° / 17° | 29° / 15° |
NOAA NCEI U.S. Climate Normals, 1991–2020: Flattop Mtn. (USS0013A19S, 6,300 ft); ST. MARY 1 SSW (USW00004130, 4,555 ft); ST MARY (USC00247292, 4,560 ft). Snow days are days with at least 1 inch of new snow. “—” means the station does not publish that normal.
Cameras, road reports and winter rules
Conditions on the pass change by the hour, so these go straight to the official sources.
Closes for the winter. The National Park Service says the alpine sections of Going-to-the-Sun Road “typically close for the winter around the third Monday of October, but this can happen earlier due to wintery weather.” Glacier National Park: directions and road conditions
- For this passGlacier National Park: directions and road conditions
- For this passGlacier National Park: Going-to-the-Sun Road
- For this passGlacier National Park webcams (Logan Pass)
- Montana · MDT511MT road conditions
Check the official National Weather Service forecast for the summit and the road report before you leave.
Crossing Logan Pass? See the summit at the hour you’ll be there
Road Travel times the forecast to your drive, so you see conditions at the summit when you will actually reach it, and get alerts about weather ahead on the way.
Questions about Logan Pass
How high is Logan Pass?
The summit is 6,654 ft above sea level, on Going-to-the-Sun Road.
How far is Logan Pass from West Glacier and St. Mary?
By road, the summit is 32 miles from West Glacier, MT and 18 miles from St. Mary, MT.
Is Logan Pass open in winter?
No. The National Park Service says the alpine sections of Going-to-the-Sun Road “typically close for the winter around the third Monday of October, but this can happen earlier due to wintery weather.”
What is the wettest month at Logan Pass?
January. The Flattop Mountain snow-monitoring site (6,300 ft, 10 mi northwest of the summit) averages 9.8 inches of precipitation that month, counting the water in melted snow (1991–2020 normals).
How cold does it get near Logan Pass?
The coldest month is January. St. Mary (4,560 ft, 13 mi east of the summit) averages a low of 12°F then (1991–2020 normals); the summit is 2,094 ft higher.