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

50°F

10°C

Humidity 29%
Wind Speed S 7 mph
Barometer 30.02 in (1016.7 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 28 Feb 2:54 pm EST
Extended Forecast for

Merrimac MA

  • Tonight

    Tonight: Increasing clouds, with a low around 25. Light and variable wind becoming northwest around 5 mph after midnight.

    Low: 25 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Snow likely, mainly between 11am and 2pm. Mostly cloudy, with a high near 33. North wind 5 to 8 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 6. Wind chill values as low as -4. Northwest wind around 7 mph.

    Low: 6 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 26. Wind chill values as low as -5. West wind around 6 mph.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10. Calm wind becoming southwest around 5 mph after midnight.

    Low: 10 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of snow between 11am and 2pm, then rain likely. Partly sunny, with a high near 38. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 38 °F

    Slight Chance
    Snow then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain and snow before 10pm, then rain between 10pm and 4am, then snow likely after 4am. Low around 29. South wind around 6 mph becoming west after midnight. Chance of precipitation is 90%.

    Low: 29 °F

    Rain/Snow

  • Wednesday

    Wednesday: A chance of snow before 7am. Mostly sunny, with a high near 46. West wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 30%.

    High: 46 °F

    Chance Snow
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 30. Light south wind. Chance of precipitation is 30%.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Increasing clouds, with a low around 25. Light and variable wind becoming northwest around 5 mph after midnight.
Sunday
Snow likely, mainly between 11am and 2pm. Mostly cloudy, with a high near 33. North wind 5 to 8 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Mostly clear, with a low around 6. Wind chill values as low as -4. Northwest wind around 7 mph.
Monday
Sunny, with a high near 26. Wind chill values as low as -5. West wind around 6 mph.
Monday Night
Mostly clear, with a low around 10. Calm wind becoming southwest around 5 mph after midnight.
Tuesday
A chance of snow between 11am and 2pm, then rain likely. Partly sunny, with a high near 38. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
Rain and snow before 10pm, then rain between 10pm and 4am, then snow likely after 4am. Low around 29. South wind around 6 mph becoming west after midnight. Chance of precipitation is 90%.
Wednesday
A chance of snow before 7am. Mostly sunny, with a high near 46. West wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 30. Light south wind. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 48. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 40%.
Thursday Night
Rain and snow likely. Cloudy, with a low around 34. Northeast wind around 6 mph. Chance of precipitation is 60%.
Friday
A chance of rain. Cloudy, with a high near 45. Northeast wind around 7 mph. Chance of precipitation is 50%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 33. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly cloudy, with a high near 54. Southwest wind 5 to 7 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:
1:24 pm EST Feb 28, 2026
Forecast Valid:
3pm EST Feb 28, 2026-6pm EST Mar 7, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation