Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Partly Cloudy

25°F

-4°C

Humidity	53%
Wind Speed	N 10 G 20 mph
Barometer	30.22 in (1023.6 mb)
Dewpoint	10°F (-12°C)
Visibility	10.00 mi
Wind Chill	15°F (-9°C)
Last update	8 Dec 8:56 pm EST

More Information:

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

Extended Forecast for

East Dennis MA

Tonight
Low: 17 °F
Partly Cloudy
Tuesday
High: 36 °F
Sunny
Tuesday Night
Low: 25 °F⇑
Chance
Rain/Snow
then Chance
Rain
Wednesday
High: 50 °F
Slight Chance
Rain then
Chance Rain
Wednesday Night
Low: 35 °F
Chance Rain
Thursday
High: 44 °F
Slight Chance
Rain then
Mostly Sunny
Thursday Night
Low: 25 °F
Partly Cloudy
Friday
High: 36 °F
Mostly Sunny
Friday Night
Low: 27 °F
Partly Cloudy
then Chance
Snow

Detailed Forecast

Tonight

Partly cloudy, with a low around 17. North wind 7 to 10 mph.

Tuesday

Sunny, with a high near 36. Northwest wind 6 to 9 mph becoming southwest in the afternoon.

Tuesday Night

A chance of snow between 9pm and 11pm, then a chance of rain after 11pm. Cloudy, with a temperature rising to around 39 by 1am. South wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Wednesday

A slight chance of rain before 7am, then a chance of rain after 11am. Mostly cloudy, with a high near 50. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

A chance of rain, mainly before 3am. Mostly cloudy, with a low around 35. Southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

Thursday

A slight chance of rain before noon. Mostly sunny, with a high near 44. West wind 13 to 15 mph. Chance of precipitation is 20%.

Thursday Night

Partly cloudy, with a low around 25. West wind around 14 mph.

Friday

Mostly sunny, with a high near 36. West wind 13 to 15 mph.

Friday Night

A chance of snow after midnight. Mostly cloudy, with a low around 27. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Saturday

A chance of rain and snow before 10am, then a chance of snow between 10am and 11am, then a chance of rain after 11am. Partly sunny, with a high near 39. West wind 10 to 14 mph. Chance of precipitation is 50%.

Saturday Night

A chance of snow. Mostly cloudy, with a low around 23. West wind around 15 mph. Chance of precipitation is 40%.

Sunday

A chance of snow. Mostly sunny, with a high near 34. West wind around 15 mph. Chance of precipitation is 30%.

Sunday Night

Partly cloudy, with a low around 21. Northwest wind around 14 mph, with gusts as high as 24 mph.

Monday

Mostly sunny, with a high near 34. Northwest wind 11 to 13 mph.