Summit forecast, next 72 hours
- New snow0 in
- Strongest gusts20 mphMonday
- Coldest45°F
| Forecast | Snow | Gusts | Temp °F |
|---|---|---|---|
| TonightMostly Clear | 0 in | 15 mph | Low 45° |
| SaturdayMostly Sunny | 0 in | 10 mph | High 67° |
| Saturday NightMostly Clear | 0 in | 5 mph | Low 47° |
| SundaySunny | 0 in | 10 mph | High 74° |
| Sunday NightMostly Clear | 0 in | 5 mph | Low 50° |
| MondaySunny | 0 in | 20 mph | High 70° |
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 | Lookout 5,140 ft · 1 mi west of the summit | Mullan Pass 6,028 ft · 1 mi east of the summit | Mullan 3,201 ft · 5 mi west of the summit |
|---|---|---|---|
| Precip (in) | High / low °F | High / low °F | |
| Jan | 7.3 | 28° / 19° | 35° / 23° |
| Feb | 5.4 | 28° / 19° | 39° / 22° |
| Mar | 5.8 | 34° / 22° | 46° / 27° |
| Apr | 3.7 | 40° / 27° | 55° / 32° |
| May | 3.0 | 50° / 36° | 65° / 40° |
| Jun | 2.9 | 58° / 42° | 71° / 45° |
| Jul | 1.0 | 70° / 52° | 81° / 49° |
| Aug | 1.1 | 69° / 51° | 81° / 48° |
| Sep | 1.8 | 59° / 44° | 71° / 42° |
| Oct | 4.4 | 44° / 32° | 55° / 34° |
| Nov | 6.9 | 32° / 24° | 41° / 27° |
| Dec | 7.7 | 27° / 18° | 32° / 22° |
NOAA NCEI U.S. Climate Normals, 1991–2020: Lookout (USS0015B02S, 5,140 ft); MULLAN PASS VOR/DME (USW00024154, 6,028 ft); MULLAN (USC00106230, 3,201 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 Lookout 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 Lookout Pass
How high is Lookout Pass?
The summit is 4,711 ft above sea level, on I-90.
How far is Lookout Pass from Wallace and Superior?
By road, the summit is 13 miles from Wallace, ID and 47 miles from Superior, MT.
What is the wettest month at Lookout Pass?
December. The Lookout snow-monitoring site (5,140 ft, 1 mi west of the summit) averages 7.7 inches of precipitation that month, counting the water in melted snow (1991–2020 normals).
How cold does it get near Lookout Pass?
The coldest month is December. Mullan Pass (6,028 ft, 1 mi east of the summit) averages a low of 18°F then (1991–2020 normals).