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

Lawrence Municipal Airport (KLWM)

Lat: 42.71°NLon: 71.13°WElev: 135ft.

Fair

17°F

-8°C

Humidity 62%
Wind Speed SW 12 mph
Barometer 30.09 in (1019.2 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 20 Jan 6:54 am EST
Extended Forecast for

Merrimac MA

  • Today

    Today: Increasing clouds, with a high near 23. West wind 8 to 11 mph, with gusts as high as 24 mph.

    High: 23 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Clear, with a low around 10. West wind around 7 mph, with gusts as high as 23 mph.

    Low: 10 °F

    Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 31. Southwest wind 6 to 8 mph.

    High: 31 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly between 10pm and 5am. Mostly cloudy, with a low around 22. Southwest wind around 7 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 22 °F

    Chance Snow

  • Thursday

    Thursday: A slight chance of snow before 8am. Mostly sunny, with a high near 41. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19. West wind around 7 mph.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 28. West wind 7 to 11 mph, with gusts as high as 23 mph.

    High: 28 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2. West wind around 8 mph.

    Low: 2 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 12. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 12 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 23. West wind 8 to 11 mph, with gusts as high as 24 mph.
Tonight
Clear, with a low around 10. West wind around 7 mph, with gusts as high as 23 mph.
Wednesday
Increasing clouds, with a high near 31. Southwest wind 6 to 8 mph.
Wednesday Night
A chance of snow, mainly between 10pm and 5am. Mostly cloudy, with a low around 22. Southwest wind around 7 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday
A slight chance of snow before 8am. Mostly sunny, with a high near 41. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 19. West wind around 7 mph.
Friday
Partly sunny, with a high near 28. West wind 7 to 11 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 2. West wind around 8 mph.
Saturday
Sunny, with a high near 12. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 1. Northwest wind around 7 mph.
Sunday
A chance of snow. Mostly cloudy, with a high near 15. North wind around 7 mph. Chance of precipitation is 30%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 4. Northwest wind around 7 mph. Chance of precipitation is 30%.
Monday
A chance of snow. Partly sunny, with a high near 19. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
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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:
6:12 am EST Jan 20, 2026
Forecast Valid:
7am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation