Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

CASTLE ROCK (TR950)

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

50°F

10°C

Humidity	100%
Wind Speed	N 2 MPH
Barometer	NA
Dewpoint	50°F (10°C)
Visibility	NA
Last update	12 Apr 04:09 AM PDT

More Information:

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

Extended Forecast for

11 Miles NW Mount St Helens WA

Today
High: 46 °F
Slight Chance
Showers then
Showers
Tonight
Low: 36 °F
Showers
Likely then
Rain/Snow
Monday
High: 38 °F
Rain/Snow
Monday Night
Low: 34 °F
Rain/Snow
Likely then
Chance Snow
Showers
Tuesday
High: 36 °F
Snow and
Breezy
Tuesday Night
Low: 31 °F
Heavy Snow
and Breezy
Wednesday
High: 34 °F
Snow
Wednesday Night
Low: 28 °F
Snow
Thursday
High: 38 °F
Snow Likely

Detailed Forecast

Today

Showers, mainly after 4pm. High near 46. Light and variable wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 80%.

Tonight

Rain showers likely before 3am, then rain, possibly mixed with snow showers. Snow level 5700 feet lowering to 3900 feet after midnight . Low around 36. West southwest wind 7 to 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Monday

Rain and snow showers. Snow level 3700 feet. High near 38. West southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Monday Night

Rain likely, possibly mixed with snow showers, becoming all snow after 8pm. Mostly cloudy, with a low around 34. West wind 6 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Tuesday

Snow. High near 36. Breezy, with a south southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Tuesday Night

Snow. The snow could be heavy at times. Low around 31. Breezy. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

Wednesday

Snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 34. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Wednesday Night

Snow, mainly before 11pm. Mostly cloudy, with a low around 28.

Thursday

Snow likely, mainly after 11am. Mostly cloudy, with a high near 38.

Thursday Night

A chance of snow before 11pm. Mostly cloudy, with a low around 30.

Friday

A slight chance of snow. Partly sunny, with a high near 42.

Friday Night

Mostly cloudy, with a low around 32.

Saturday

A slight chance of rain and snow. Snow level rising to 4400 feet in the afternoon. Partly sunny, with a high near 50.