Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970.0ft.

Mist

29°F

-2°C

Humidity	100%
Wind Speed	N 3 MPH
Barometer	29.58 in (1001.69 mb)
Dewpoint	29°F (-2°C)
Visibility	5.00 mi
Last update	25 Dec 12:56 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

11 Miles E Snoqualmie Pass WA

Overnight
Low: 27 °F
Chance
Rain/Snow
Christmas Day
High: 39 °F
Rain/Snow and
Patchy Fog
Thursday Night
Low: 28 °F
Rain/Snow
Likely and
Patchy Fog
then Chance
Rain/Snow
Friday
High: 37 °F
Snow
Friday Night
Low: 24 °F
Snow then
Snow Likely
Saturday
High: 31 °F
Slight Chance
Snow then
Partly Sunny
Saturday Night
Low: 21 °F
Mostly Cloudy
Sunday
High: 36 °F
Partly Sunny
Sunday Night
Low: 25 °F
Mostly Cloudy

Detailed Forecast

Overnight

A chance of rain and snow after 4am. Mostly cloudy, with a low around 27. East wind around 5 mph. Chance of precipitation is 30%.

Christmas Day

Rain and snow, mainly between 10am and 4pm. Patchy fog after 4pm. High near 39. Southeast wind around 6 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Rain and snow likely before 1am, then a chance of snow. Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday

Snow, mainly after 7am. High near 37. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday Night

Snow, mainly before 4am. Low around 24. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Saturday

A 20 percent chance of snow before 10am. Partly sunny, with a high near 31.

Saturday Night

Mostly cloudy, with a low around 21.

Sunday

Partly sunny, with a high near 36.

Sunday Night

Mostly cloudy, with a low around 25.

Monday

Mostly cloudy, with a high near 40.

Monday Night

Mostly cloudy, with a low around 28.