Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

CASTLE ROCK (TR950)

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

47°F

8°C

Humidity	61%
Wind Speed	S 3 MPH
Barometer	NA
Dewpoint	34°F (1°C)
Visibility	NA
Last update	31 Dec 02:09 PM 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

This Afternoon
High: 46 °F
Mostly Sunny
Tonight
Low: 39 °F
Partly Cloudy
then Slight
Chance Rain
New Year's Day
High: 39 °F
Chance Rain
then Rain
Thursday Night
Low: 38 °F
Rain
Friday
High: 42 °F
Rain
Friday Night
Low: 39 °F
Rain
Saturday
High: 43 °F
Rain and
Breezy
Saturday Night
Low: 37 °F
Rain and
Breezy
Sunday
High: 38 °F
Rain/Snow and
Breezy

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 46. East southeast wind 3 to 5 mph.

Tonight

A 10 percent chance of rain after 5am. Snow level 5200 feet lowering to 4600 feet after midnight . Increasing clouds, with a low around 39. East southeast wind 9 to 11 mph.

New Year's Day

Rain, mainly after 2pm. Snow level 5600 feet rising to 7000 feet in the afternoon. High near 39. East southeast wind 5 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain. Low around 38. South wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain. High near 42. South wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night

Rain. Low around 39. Chance of precipitation is 80%.

Saturday

Rain. Snow level 5300 feet. High near 43. Breezy. Chance of precipitation is 100%.

Saturday Night

Rain. Snow level 5100 feet. Cloudy, with a low around 37. Breezy.

Sunday

Rain, possibly mixed with snow. Snow level 4500 feet. Cloudy, with a high near 38. Breezy.