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

62°F

17°C

Humidity 70%
Wind Speed SW 8 mph
Barometer 30.00 in (1016.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 3 Apr 8:54 pm EDT
Extended Forecast for

Merrimac MA

  • Tonight

    Tonight: Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 46. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 57. Northwest wind 7 to 11 mph becoming east in the afternoon. Winds could gust as high as 22 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 4am. Patchy fog after 2am. Otherwise, cloudy, with a low around 36. East wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance
    Showers then
    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers, mainly after 9am. Patchy fog before 8am. High near 59. Light and variable wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. West wind around 9 mph.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51. West wind 9 to 11 mph, with gusts as high as 26 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. West wind around 6 mph becoming calm after midnight.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of snow showers before 2pm, then a chance of rain showers between 2pm and 5pm, then a chance of rain and snow showers after 5pm. Partly sunny, with a high near 48. West wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 48 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. Northwest wind around 6 mph.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 46. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 57. Northwest wind 7 to 11 mph becoming east in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Showers likely, mainly after 4am. Patchy fog after 2am. Otherwise, cloudy, with a low around 36. East wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, mainly after 9am. Patchy fog before 8am. High near 59. Light and variable wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly cloudy, with a low around 36. West wind around 9 mph.
Monday
Mostly sunny, with a high near 51. West wind 9 to 11 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 31. West wind around 6 mph becoming calm after midnight.
Tuesday
A chance of snow showers before 2pm, then a chance of rain showers between 2pm and 5pm, then a chance of rain and snow showers after 5pm. Partly sunny, with a high near 48. West wind 3 to 7 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 25. Northwest wind around 6 mph.
Wednesday
Sunny, with a high near 48. Light and variable wind becoming southwest around 6 mph in the morning.
Wednesday Night
Mostly clear, with a low around 32. Southwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 60. Southwest wind 7 to 11 mph, with gusts as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 41. Southwest wind 7 to 9 mph.
Friday
Partly sunny, with a high near 63. West wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.84°N 71.01°W (Elev. 135 ft)
Last Update:
2:51 pm EDT Apr 3, 2026
Forecast Valid:
9pm EDT Apr 3, 2026-6pm EDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation