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

Lawrence Municipal Airport (KLWM)

Lat: 42.71°NLon: 71.13°WElev: 135ft.

Overcast

35°F

2°C

Humidity	61%
Wind Speed	Calm
Barometer	30.03 in (1017.1 mb)
Dewpoint	23°F (-5°C)
Visibility	10.00 mi
Last update	7 Dec 3:54 pm EST

More Information:

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

Extended Forecast for

Merrimac MA

Tonight
Low: 16 °F
Gradual
Clearing
Monday
High: 24 °F
Sunny
Monday Night
Low: 10 °F
Mostly Clear
Tuesday
High: 31 °F
Increasing
Clouds
Tuesday Night
Low: 23 °F
Chance Snow
Wednesday
High: 42 °F
Chance
Rain/Snow
then Rain
Likely
Wednesday Night
Low: 31 °F
Rain Likely
Thursday
High: 38 °F
Mostly Sunny
Thursday Night
Low: 21 °F
Mostly Cloudy

Detailed Forecast

Tonight

Cloudy during the early evening, then gradual clearing, with a low around 16. Calm wind becoming northwest 5 to 9 mph in the evening.

Monday

Sunny, with a high near 24. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.

Monday Night

Mostly clear, with a low around 10. Northwest wind around 5 mph becoming calm in the evening.

Tuesday

Increasing clouds, with a high near 31. Calm wind becoming southwest around 6 mph in the afternoon.

Tuesday Night

A chance of snow, mainly between 8pm and 3am. Mostly cloudy, with a low around 23. Southwest wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Wednesday

A chance of snow before 10am, then rain likely. Mostly cloudy, with a high near 42. Southwest wind 6 to 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Wednesday Night

Rain likely, mainly before 8pm. Mostly cloudy, with a low around 31. Southwest wind around 7 mph. Chance of precipitation is 60%.

Thursday

Mostly sunny, with a high near 38. West wind 7 to 9 mph.

Thursday Night

Mostly cloudy, with a low around 21. West wind around 6 mph.

Friday

A chance of snow after 3pm. Partly sunny, with a high near 33. West wind around 7 mph. Chance of precipitation is 30%.

Friday Night

A chance of snow. Mostly cloudy, with a low around 17. West wind around 6 mph. Chance of precipitation is 30%.

Saturday

A chance of snow. Partly sunny, with a high near 30. Northwest wind 6 to 9 mph. Chance of precipitation is 30%.