Summit forecast, next 72 hours
- New snow0 in
- Strongest gusts20 mphSaturday Night
- Coldest44°F
| Forecast | Snow | Gusts | Temp °F |
|---|---|---|---|
| TonightPartly Cloudy | 0 in | 15 mph | Low 44° |
| SaturdaySunny | 0 in | 20 mph | High 62° |
| Saturday NightMostly Clear | 0 in | 20 mph | Low 47° |
| SundaySunny | 0 in | 20 mph | High 66° |
| Sunday NightPartly Cloudy | 0 in | 10 mph | Low 47° |
| MondayMostly Sunny | 0 in | 15 mph | High 59° |
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 | Morse Lake 5,410 ft · 3 mi northeast of the summit | Paradise, Mount Rainier 5,427 ft · 12 mi southwest of the summit | Stampede Pass 3,959 ft · 29 mi north of the summit |
|---|---|---|---|
| Precip (in) | High / low °F | High / low °F | |
| Jan | 13.2 | 35° / 24° | 32° / 25° |
| Feb | 9.4 | 34° / 23° | 35° / 26° |
| Mar | 10.2 | 36° / 24° | 40° / 29° |
| Apr | 6.4 | 40° / 26° | 46° / 33° |
| May | 3.7 | 48° / 33° | 53° / 38° |
| Jun | 2.4 | 54° / 37° | 60° / 43° |
| Jul | 0.8 | 62° / 44° | 68° / 50° |
| Aug | 1.2 | 64° / 45° | 69° / 51° |
| Sep | 2.6 | 57° / 41° | 63° / 47° |
| Oct | 6.8 | 46° / 33° | 49° / 38° |
| Nov | 13.0 | 37° / 26° | 38° / 30° |
| Dec | 14.2 | 33° / 22° | 32° / 24° |
NOAA NCEI U.S. Climate Normals, 1991–2020: Morse Lake (USS0021C17S, 5,410 ft); RAINIER PARADISE RS (USC00456898, 5,427 ft); STAMPEDE PASS (USW00024237, 3,959 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. WSDOT closes SR-410 over Chinook Pass every winter. It closed on Oct. 24 in 2025, Oct. 31 in 2024 and Nov. 10 in 2023, and reopened in late May each of the following springs. WSDOT: pass closing and opening dates
- For this passWSDOT Chinook Pass report
- For this passWSDOT: pass closing and opening dates
- For this passMount Rainier National Park: road status
- Washington · WSDOTReal-time travel map
- Washington · winter rulesMountain pass reports and traction rules
Check the official National Weather Service forecast for the summit and the road report before you leave.
Crossing Chinook 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 Chinook Pass
How high is Chinook Pass?
The summit is 5,430 ft above sea level, on SR-410.
How far is Chinook Pass from Greenwater and Naches?
By road, the summit is 25 miles from Greenwater, WA and 52 miles from Naches, WA.
Is Chinook Pass open in winter?
No. WSDOT closes SR-410 over Chinook Pass every winter. It closed on Oct. 24 in 2025, Oct. 31 in 2024 and Nov. 10 in 2023, and reopened in late May each of the following springs.
What is the wettest month at Chinook Pass?
December. The Morse Lake snow-monitoring site (5,410 ft, 3 mi northeast of the summit) averages 14.2 inches of precipitation that month, counting the water in melted snow (1991–2020 normals).
How cold does it get near Chinook Pass?
The coldest month is December. Paradise, Mount Rainier (5,427 ft, 12 mi southwest of the summit) averages a low of 22°F then (1991–2020 normals).