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.

Fog

33°F

1°C

Humidity 100%
Wind Speed Calm
Barometer 30.24 in (1024.0 mb)
Dewpoint 33°F (1°C)
Visibility 0.25 mi
Last update 7 Mar 7:54 am EST
Extended Forecast for

Merrimac MA

  • Today

    Today: Patchy fog before 1pm. Otherwise, cloudy, with a high near 49. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 49 °F

    Patchy Fog

  • Tonight

    Tonight: A chance of rain, mainly after 10pm. Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 41. Southwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 41 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: A slight chance of rain before noon. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 62. West wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 62 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33. Southwest wind around 6 mph.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 59. Southwest wind 5 to 9 mph.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Southwest wind 5 to 7 mph.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64. Southwest wind around 6 mph.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Light and variable wind becoming east around 5 mph after midnight.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 7am. Mostly cloudy, with a high near 50. Southeast wind 6 to 8 mph. Chance of precipitation is 50%.

    High: 50 °F

    Chance Rain

Detailed Forecast

Today
Patchy fog before 1pm. Otherwise, cloudy, with a high near 49. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Tonight
A chance of rain, mainly after 10pm. Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 41. Southwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Sunday
A slight chance of rain before noon. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 62. West wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 33. Southwest wind around 6 mph.
Monday
Mostly sunny, with a high near 59. Southwest wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 38. Southwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 64. Southwest wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 37. Light and variable wind becoming east around 5 mph after midnight.
Wednesday
A chance of rain after 7am. Mostly cloudy, with a high near 50. Southeast wind 6 to 8 mph. Chance of precipitation is 50%.
Wednesday Night
Rain likely, mainly after 2am. Cloudy, with a low around 36. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 48. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 22. West wind 8 to 10 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 41. West wind 7 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.84°N 71.01°W (Elev. 135 ft)
Last Update:
7:57 am EST Mar 7, 2026
Forecast Valid:
8am EST Mar 7, 2026-6pm EDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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