National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lawrence Municipal Airport (KLWM)

Lat: 42.71°NLon: 71.13°WElev: 135ft.

Fair

34°F

1°C

Humidity 67%
Wind Speed S 5 mph
Barometer 30.09 in (1019.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 19 Feb 10:54 pm EST
Extended Forecast for

Merrimac MA

Winter Weather Advisory February 20, 10:00am until February 21, 07:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Partly Cloudy

  • Friday

    Friday: Snow, mainly after 2pm. High near 38. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 38 °F

    Mostly Cloudy
    then Snow

  • Friday Night

    Friday Night: Snow. Low around 23. Northeast wind around 9 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 23 °F

    Snow

  • Saturday

    Saturday: Snow or light snow likely before 7am, then light snow likely, mainly between 7am and 10am. Mostly cloudy, with a high near 31. Northeast wind 3 to 7 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 31 °F

    Snow Likely

  • Saturday Night

    Saturday Night: A slight chance of light snow before 8pm, then a slight chance of snow between 8pm and 1am. Mostly cloudy, with a low around 20. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Light Snow

  • Sunday

    Sunday: A slight chance of snow after 4pm. Mostly cloudy, with a high near 35. Northeast wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 35 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow after 10pm. Mostly cloudy, with a low around 23. Northeast wind 6 to 10 mph. Chance of precipitation is 30%.

    Low: 23 °F

    Chance Snow

  • Monday

    Monday: A chance of snow. Mostly cloudy, with a high near 33. North wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 33 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18. Northwest wind around 6 mph.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 23. Calm wind.
Friday
Snow, mainly after 2pm. High near 38. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Friday Night
Snow. Low around 23. Northeast wind around 9 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow or light snow likely before 7am, then light snow likely, mainly between 7am and 10am. Mostly cloudy, with a high near 31. Northeast wind 3 to 7 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
A slight chance of light snow before 8pm, then a slight chance of snow between 8pm and 1am. Mostly cloudy, with a low around 20. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.
Sunday
A slight chance of snow after 4pm. Mostly cloudy, with a high near 35. Northeast wind 5 to 7 mph. Chance of precipitation is 20%.
Sunday Night
A chance of snow after 10pm. Mostly cloudy, with a low around 23. Northeast wind 6 to 10 mph. Chance of precipitation is 30%.
Monday
A chance of snow. Mostly cloudy, with a high near 33. North wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 18. Northwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 33. Northwest wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 11. West wind around 5 mph.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 37. South wind 5 to 8 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. South wind around 7 mph. Chance of precipitation is 50%.
Thursday
A chance of rain and snow. Partly sunny, with a high near 43. Southwest wind around 8 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.84°N 71.01°W (Elev. 135 ft)
Last Update:
5:35 pm EST Feb 19, 2026
Forecast Valid:
11pm EST Feb 19, 2026-6pm EST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation