Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

Lat: 47.68528°NLon: 122.25111°WElev: 29.0ft.

42°F

6°C

Humidity	90%
Wind Speed	S 5 MPH
Barometer	29.77 in (1008.13 mb)
Dewpoint	39°F (4°C)
Visibility	NA
Wind Chill	39°F (4°C)
Last update	15 Apr 12:30 PM PDT

More Information:

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

Extended Forecast for

Sammamish WA

This Afternoon
High: 45 °F
Showers
Tonight
Low: 35 °F
Rain/Snow
then Slight
Chance Rain
Thursday
High: 55 °F
Decreasing
Clouds
Thursday Night
Low: 39 °F
Mostly Cloudy
Friday
High: 57 °F
Partly Sunny
Friday Night
Low: 41 °F
Mostly Cloudy
Saturday
High: 65 °F
Mostly Cloudy
Saturday Night
Low: 46 °F
Slight Chance
Rain
Sunday
High: 67 °F
Slight Chance
Rain

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. Steady temperature around 45. South southwest wind around 5 mph becoming northwest. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Rain and snow before 11pm, then a slight chance of rain between 11pm and 1am. Some thunder is also possible. Low around 35. Calm wind. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday

Mostly cloudy, then gradually becoming sunny, with a high near 55. Light and variable wind.

Thursday Night

Mostly cloudy, with a low around 39. Light south wind.

Friday

Partly sunny, with a high near 57. Calm wind.

Friday Night

Mostly cloudy, with a low around 41.

Saturday

Mostly cloudy, with a high near 65.

Saturday Night

A slight chance of rain after 11pm. Mostly cloudy, with a low around 46.