Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Partly Cloudy

26°F

-3°C

Humidity	24%
Wind Speed	NW 17 G 30 mph
Barometer	30.20 in (1022.5 mb)
Dewpoint	-6°F (-21°C)
Visibility	10.00 mi
Wind Chill	13°F (-11°C)
Last update	8 Dec 12:54 pm EST

More Information:

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

Extended Forecast for

Mattapan MA

This Afternoon
High: 25 °F
Sunny
Tonight
Low: 9 °F
Mostly Clear
Tuesday
High: 30 °F
Increasing
Clouds
Tuesday Night
Low: 26 °F
Chance Snow
Wednesday
High: 46 °F
Chance
Rain/Snow
then Rain
Likely
Wednesday Night
Low: 33 °F
Rain Likely
Thursday
High: 40 °F
Mostly Sunny
Thursday Night
Low: 22 °F
Partly Cloudy
Friday
High: 33 °F
Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 25. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

Tonight

Mostly clear, with a low around 9. Northwest wind 3 to 6 mph.

Tuesday

Increasing clouds, with a high near 30. South wind 3 to 8 mph.

Tuesday Night

A chance of snow, mainly before 1am. Mostly cloudy, with a low around 26. South wind around 10 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Wednesday

A slight chance of rain and snow before 8am, then rain likely. Mostly cloudy, with a high near 46. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Wednesday Night

Rain likely, mainly before 3am. Mostly cloudy, with a low around 33. Southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

Thursday

Mostly sunny, with a high near 40. West wind 8 to 11 mph, with gusts as high as 21 mph.

Thursday Night

Partly cloudy, with a low around 22. West wind around 8 mph.

Friday

Sunny, with a high near 33. West wind 8 to 11 mph, with gusts as high as 21 mph.

Friday Night

A chance of snow after 2am. Partly cloudy, with a low around 23. West wind around 6 mph. Chance of precipitation is 30%.

Saturday

A chance of snow. Partly sunny, with a high near 35. West wind 6 to 10 mph. Chance of precipitation is 30%.

Saturday Night

Partly cloudy, with a low around 20. West wind around 9 mph.