Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

CASTLE ROCK (TR950)

Lat: 46.27139°NLon: 122.89194°WElev: 213.0ft.

33°F

1°C

Humidity	100%
Wind Speed	NW 0 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	12 Feb 03:09 AM PST

More Information:

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

Extended Forecast for

11 Miles NW Mount St Helens WA

Overnight
Low: 35 °F
Mostly Cloudy
Thursday
High: 41 °F
Partly Sunny
Thursday Night
Low: 33 °F
Partly Cloudy
then Chance
Snow
Friday
High: 36 °F
Snow
Friday Night
Low: 34 °F
Snow
Saturday
High: 36 °F
Snow Likely
Saturday Night
Low: 32 °F
Chance Snow
Sunday
High: 39 °F
Chance Snow
Sunday Night
Low: 28 °F
Chance Snow

Detailed Forecast

Overnight

Mostly cloudy, with a low around 35. Southeast wind around 6 mph.

Thursday

Partly sunny, with a high near 41. Calm wind becoming west southwest around 6 mph in the afternoon.

Thursday Night

A 30 percent chance of snow after 4am. Mostly cloudy, with a low around 33. Light south wind. Little or no snow accumulation expected.

Friday

Snow, mainly after 10am. High near 36. South southwest wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Friday Night

Snow. Low around 34. South southwest wind 3 to 5 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Saturday

Snow likely. Mostly cloudy, with a high near 36. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 32. New snow accumulation of less than a half inch possible.

Sunday

A chance of snow. Partly sunny, with a high near 39.

Sunday Night

A chance of snow, mainly after 4am. Partly cloudy, with a low around 28.

Washington's Birthday

Snow, mainly after 10am. Mostly cloudy, with a high near 36.