The weather in Snoqualmie Pass in October is very cold with temperatures between -2°C and 12°C, warm clothes are a must.
You can expect rain for roughly half of the month of October in Snoqualmie Pass. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Snoqualmie Pass can expect a few days of snow in October.
Our weather forecast can give you a great sense of what weather to expect in Snoqualmie Pass in October 2025.
If you’re planning to visit Snoqualmie Pass in the near future, we highly recommend that you review the 14 day weather forecast for Snoqualmie Pass before you arrive.
Temperatures
12° / -2°
Rainy Days
11
Snowy Days
2
Dry Days
17
Rainfall
281
mm
Sun Hours
8.7
Hrs
