Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

30°F

-1°C

Humidity	79%
Wind Speed	Calm
Barometer	30.00 in (1015.9 mb)
Dewpoint	24°F (-4°C)
Visibility	10.00 mi
Last update	7 Dec 5:56 pm EST

More Information:

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

Extended Forecast for

Dennis MA

Tonight
Low: 24 °F
Decreasing
Clouds
Monday
High: 32 °F
Mostly Sunny
and Breezy
Monday Night
Low: 16 °F
Mostly Cloudy
Tuesday
High: 43 °F
Increasing
Clouds
Tuesday Night
Low: 33 °F
Chance
Rain/Snow
then Chance
Rain
Wednesday
High: 50 °F
Chance Rain
Wednesday Night
Low: 37 °F
Chance Rain
Thursday
High: 44 °F
Mostly Sunny
Thursday Night
Low: 29 °F
Mostly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Southwest wind 5 to 10 mph becoming northwest 13 to 18 mph after midnight.

Monday

Mostly sunny, with a high near 32. Breezy, with a north wind 16 to 23 mph.

Monday Night

Mostly cloudy, with a low around 16. North wind 8 to 13 mph.

Tuesday

Increasing clouds, with a high near 43. Northwest wind 6 to 10 mph becoming southwest in the afternoon.

Tuesday Night

A slight chance of snow before 8pm, then a chance of rain. Cloudy, with a low around 33. South wind 13 to 15 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Wednesday

A chance of rain, mainly after noon. Mostly cloudy, with a high near 50. Southwest wind 13 to 17 mph. Chance of precipitation is 40%.

Wednesday Night

A chance of rain before 4am. Mostly cloudy, with a low around 37. Southwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

Thursday

Mostly sunny, with a high near 44. West wind around 15 mph.

Thursday Night

Mostly cloudy, with a low around 29. West wind 9 to 13 mph.

Friday

A chance of snow between 8am and 9am, then a chance of rain after 9am. Partly sunny, with a high near 38. West wind around 11 mph. Chance of precipitation is 40%.

Friday Night

A chance of rain and snow. Mostly cloudy, with a low around 27. West wind 10 to 13 mph. Chance of precipitation is 40%.

Saturday

A chance of rain and snow. Partly sunny, with a high near 38. Northwest wind 14 to 16 mph. Chance of precipitation is 40%.

Saturday Night

A chance of snow. Mostly cloudy, with a low around 24. West wind around 18 mph. Chance of precipitation is 40%.

Sunday

A chance of snow. Mostly sunny, with a high near 33. West wind around 18 mph. Chance of precipitation is 30%.