Snoqualmie Pass (I-90) Road Conditions & Closures
I-90 · WA · closures driven by road-surface conditions
Moderate closure risk
Snoqualmie Pass (I-90) is the main mountain-access corridor for Snoqualmie / Alpental. It's a moderate-closure corridor, and when it shuts down or restricts traffic, the cause is almost always road-surface conditions. Below: live WSDOT status, plus StormDrop's read on when I-90 tends to close and how to time your drive around it.
Live I-90 Status
Snoqualmie Pass
UnknownWSDOT data unavailable.
When does Snoqualmie Pass close?
Closure risk
Moderate
Typical window
Any time
Typical reopen
~1.5 hr
Closures here aren't limited to a fixed morning window — they can happen at any time of day during an active storm, usually reopening about about an hour after control work wraps up.
In StormDrop's closure model, risk starts building once a storm cycle pushes past about 12" of new snow and climbs steeply above roughly 24". Sustained wind above about 30 mph adds risk through blowing and drifting snow.
Traction-law restrictions tend to appear well before a full closure — often around 4" of fresh accumulation — so carrying chains or running AWD/4WD with snow tires is the safe default on a storm day.
These are StormDrop's closure-model tendencies and general corridor knowledge — not a published schedule or a guarantee. WSDOT makes the real-time call. Always confirm live I-90 status before you go.
Beating the closure
Closures here aren't tied to a set time — build slack into your plan and watch live status all morning.
Carry chains or run AWD/4WD with dedicated snow tires whenever a storm is in the forecast — a traction law can go up before the road ever closes.
Check the live WSDOT status above before you leave, and again mid-drive — storm-day conditions on I-90 can flip within minutes.
Have a backup resort or a later-start plan so a control-work delay doesn't cost you the day.
Frequently asked
Is Snoqualmie Pass open right now?
StormDrop shows live WSDOT status for I-90 in the status block at the top of this page. Conditions change quickly during storms — treat the live status, not this page's general guidance, as the source of truth before you leave the driveway.
When does Snoqualmie Pass usually close?
Snoqualmie Pass is a moderate-closure corridor whose closures are driven mainly by road-surface conditions. Closures here aren't limited to a fixed morning window — they can happen at any time of day during an active storm, usually reopening about about an hour after control work wraps up. In StormDrop's closure model, risk starts building once a storm cycle pushes past about 12" of new snow and climbs steeply above roughly 24". Sustained wind above about 30 mph adds risk through blowing and drifting snow.
Do I need chains on I-90?
On an active storm day it's wise to be ready. I-90 through Snoqualmie Pass can go under a traction law that requires AWD/4WD with snow tires or chains. Carry a set and check the live WSDOT status above before departing.
Never get skunked by a closed road again
StormDrop predicts I-90 closures and chain controls before the storm hits — plus calibrated snow forecasts, access timing, and smart alerts for 76 resorts.
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