Summit forecast, next 72 hours
- New snow0 in
- Strongest gusts10 mphWednesday
- Coldest22°F
| Forecast | Snow | Gusts | Temp °F |
|---|---|---|---|
| Columbus DayPartly Sunny | 0 in | 10 mph | High 42° |
| TonightAreas Of Fog then Partly Cloudy | 0 in | 5 mph | Low 21° |
| TuesdayMostly Sunny | 0 in | 5 mph | High 49° |
| Tuesday NightPatchy Fog then Mostly Clear | 0 in | 10 mph | Low 23° |
| WednesdaySunny | 0 in | 10 mph | High 52° |
| Wednesday NightPatchy Fog | 0 in | 5 mph | Low 27° |
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 | Lolo Pass 5,240 ft · at the summit | Powell 3,530 ft · 11 mi southwest of the summit | Stevensville 3,375 ft · 25 mi east of the summit | |
|---|---|---|---|---|
| Precip (in) | High / low °F | High / low °F | Snow (in) | |
| Jan | 6.6 | 32° / 18° | 35° / 19° | 4.0 |
| Feb | 5.1 | 37° / 18° | 38° / 21° | 3.0 |
| Mar | 5.0 | 46° / 24° | 50° / 26° | 1.5 |
| Apr | 3.8 | 53° / 29° | 58° / 32° | 0.1 |
| May | 3.1 | 64° / 35° | 68° / 39° | 0 |
| Jun | 3.0 | 71° / 42° | 75° / 45° | 0 |
| Jul | 1.2 | 83° / 46° | 85° / 49° | 0 |
| Aug | 1.3 | 82° / 44° | 84° / 47° | 0 |
| Sep | 2.0 | 71° / 37° | 74° / 40° | 0 |
| Oct | 4.1 | 54° / 30° | 58° / 32° | 0.1 |
| Nov | 6.0 | 38° / 24° | 43° / 25° | 1.6 |
| Dec | 6.4 | 30° / 18° | 33° / 19° | 6.8 |
NOAA NCEI U.S. Climate Normals, 1991–2020: Lolo Pass (USS0014C05S, 5,240 ft); POWELL (USC00107320, 3,530 ft); STEVENSVILLE (USC00247894, 3,375 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.
- Idaho · ITD511 Idaho road conditions
- Montana · MDT511MT road conditions
Check the official National Weather Service forecast for the summit and the road report before you leave.
Crossing Lolo 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 Lolo Pass
How high is Lolo Pass?
The summit is 5,233 ft above sea level, on US-12.
How far is Lolo Pass from Lolo and Kooskia?
By road, the summit is 33 miles from Lolo, MT and 100 miles from Kooskia, ID.
What is the wettest month at Lolo Pass?
January. The Lolo Pass snow-monitoring site (5,240 ft, at the summit) averages 6.6 inches of precipitation that month, counting the water in melted snow (1991–2020 normals).
How cold does it get near Lolo Pass?
The coldest month is December. Powell (3,530 ft, 11 mi southwest of the summit) averages a low of 18°F then (1991–2020 normals); the summit is 1,703 ft higher.