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Forecasts

NWS Forecast for: Cascades of Snohomish and Northern King Counties
Issued by: National Weather Service Seattle, WA
Last Update: 236 AM PDT Tue Jul 21 2026

Today: Mostly sunny. Patchy smoke. Freezing level near 14500 feet. Afternoon pass temperatures in the upper 80s. Light wind.

Tonight: Mostly clear. Patchy smoke in the evening. Freezing level near 14500 feet. Lows in the lower 60s. Light wind.

Wednesday: Sunny. Freezing level near 15000 feet. Afternoon pass temperatures in the upper 80s. Light wind.

Wednesday Night: Partly cloudy. Freezing level near 15000 feet. Lows in the mid 60s. Light wind.

Thursday: Partly sunny. A chance of showers in the morning, then a slight chance of showers in the afternoon. Snow level near 12500 feet. Afternoon pass temperatures in the upper 70s. Light wind.

Thursday Night: Partly cloudy. A slight chance of showers in the evening. Snow level near 12500 feet. Lows in the upper 50s.

Friday: Sunny. Freezing level near 14500 feet. Afternoon pass temperatures in the lower 70s.

Friday Night: Mostly clear. Freezing level near 14500 feet. Lows in the mid 50s.

Saturday: Mostly sunny. Freezing level near 13000 feet. Afternoon pass temperatures in the upper 60s.

Saturday Night: Partly cloudy. A slight chance of showers. Snow level near 9500 feet. Lows in the lower 50s.

Sunday: Mostly sunny. A slight chance of showers in the afternoon. Snow level near 9500 feet. Afternoon pass temperatures in the upper 60s.

Sunday Night: Partly cloudy. Freezing level near 12500 feet. Lows around 50.

Monday: Mostly sunny with a slight chance of showers. Snow level near 9000 feet. Afternoon pass temperatures in the upper 60s.

Zone Forecast: Cascades of Snohomish and Northern King Counties
NWS Forecast for: Snoqualmie Pass WA
Issued by: National Weather Service Pendleton, OR
Last Update: 2:02 am PDT Jul 21, 2026

Overnight: Patchy smoke. Mostly cloudy, with a low around 61. Calm wind.

Tuesday: Patchy smoke. Mostly sunny, with a high near 89. Calm wind becoming west around 6 mph in the afternoon.

Tuesday Night: Patchy smoke. Mostly cloudy, then gradually becoming clear, with a low around 62. Calm wind.

Wednesday: Patchy smoke. Sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon.

Wednesday Night: Partly cloudy, with a low around 63. Northwest wind around 6 mph becoming calm in the evening.

Thursday: A 20 percent chance of showers. Mostly sunny, with a high near 82.

Thursday Night: Mostly clear, with a low around 57.

Friday: Sunny, with a high near 76.

Friday Night: Mostly clear, with a low around 54.

Saturday: Sunny, with a high near 70.

Saturday Night: Partly cloudy, with a low around 52.

Sunday: Mostly sunny, with a high near 70.

Sunday Night: Partly cloudy, with a low around 51.

Monday: Mostly sunny, with a high near 69.

Snoqualmie Pass WA
 47.41°N 121.41°W (Elev. 2812 ft)
NWS Forecast for: Stevens Pass WA
Issued by: National Weather Service Seattle, WA
Last Update: 11:26 pm PDT Jul 20, 2026

Overnight: Patchy smoke after 4am. Mostly cloudy, with a low around 61. Calm wind.

Tuesday: Patchy smoke. Partly sunny, with a high near 87. Calm wind becoming west around 6 mph in the afternoon.

Tuesday Night: Mostly cloudy, then gradually becoming clear, with a low around 62. West wind around 6 mph becoming calm in the evening.

Wednesday: Sunny, with a high near 89. Calm wind becoming west around 6 mph in the afternoon.

Wednesday Night: Mostly cloudy, with a low around 64. West wind 5 to 7 mph becoming calm in the evening.

Thursday: A 20 percent chance of rain. Partly sunny, with a high near 78.

Thursday Night: Partly cloudy, with a low around 57.

Friday: Sunny, with a high near 74.

Friday Night: Mostly clear, with a low around 54.

Saturday: Sunny, with a high near 69.

Saturday Night: Partly cloudy, with a low around 51.

Sunday: Mostly sunny, with a high near 68.

Sunday Night: Partly cloudy, with a low around 50.

Monday: Mostly sunny, with a high near 67.

Stevens Pass WA
 47.75°N 121.09°W (Elev. 4879 ft)
NWS Forecast for: 9 Miles NE Mt Baker WA
Issued by: National Weather Service Seattle, WA
Last Update: 11:26 pm PDT Jul 20, 2026


Air Quality Alert

Overnight: Mostly cloudy, with a steady temperature around 65. Southeast wind around 6 mph.

Tuesday: Patchy smoke after 7am. Partly sunny, with a high near 79. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

Tuesday Night: Partly cloudy, with a low around 63. West wind around 5 mph becoming light and variable.

Wednesday: Sunny, with a high near 80. Calm wind becoming west 5 to 8 mph in the afternoon.

Wednesday Night: Partly cloudy, with a low around 65. West wind 5 to 8 mph becoming light and variable in the evening.

Thursday: Mostly sunny, with a high near 69.

Thursday Night: Partly cloudy, with a low around 59.

Friday: Mostly sunny, with a high near 66.

Friday Night: Partly cloudy, with a low around 55.

Saturday: A slight chance of rain after 11am. Mostly sunny, with a high near 63.

Saturday Night: A chance of rain. Mostly cloudy, with a low around 51.

Sunday: A chance of rain. Partly sunny, with a high near 60.

Sunday Night: A chance of rain. Partly cloudy, with a low around 50.

Monday: A chance of rain. Partly sunny, with a high near 61.

9 Miles NE Mt Baker WA
 48.86°N 121.68°W (Elev. 4265 ft)
NWS Forecast for: 4 Miles N Chinook Pass WA
Issued by: National Weather Service Seattle, WA
Last Update: 11:26 pm PDT Jul 20, 2026

Overnight: Patchy smoke. Mostly cloudy, with a low around 58. South southeast wind around 6 mph.

Tuesday: Patchy smoke before 8am, then patchy smoke after 10am. Partly sunny, with a high near 79. Light and variable wind becoming northwest 5 to 8 mph in the afternoon.

Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 59. North northwest wind 3 to 8 mph.

Wednesday: Sunny, with a high near 81. Light west northwest wind increasing to 5 to 9 mph in the afternoon.

Wednesday Night: Mostly cloudy, with a low around 59. West northwest wind 6 to 9 mph.

Thursday: A 40 percent chance of rain, mainly after 11am. Partly sunny, with a high near 69.

Thursday Night: Mostly clear, with a low around 52.

Friday: Sunny, with a high near 68.

Friday Night: Mostly clear, with a low around 49.

Saturday: Sunny, with a high near 65.

Saturday Night: Partly cloudy, with a low around 47.

Sunday: Mostly sunny, with a high near 63.

Sunday Night: Partly cloudy, with a low around 46.

Monday: Mostly sunny, with a high near 62.

4 Miles N Chinook Pass WA
 46.93°N 121.49°W (Elev. 5233 ft)

WSDOT

Snoqualmie Pass I-90

Road Condition: Reports have ended for this season. Traditionally weather and road conditions are reported on this page from November 1 to April 1. Should adverse weather occur that will impact travel, updates will be provided as information is available.
Temp: 60°F
Weather: Travel impacts will be updated here if conditions cause delays of an hour or more. For other cross-state travel conditions, check WSDOT's real-time travel map.
Restrictions: No restrictions
⚠️ Travel Advisory Active

Stevens Pass US 2

Road Condition: Reports have ended for this season. Traditionally weather and road conditions are reported on this page from November 1 to April 1. Should adverse weather occur that will impact travel, updates will be provided as information is available.
Weather:
Restrictions: No restrictions
⚠️ Travel Advisory Active

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