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.

Light Snow Fog/Mist

32°F

0°C

Humidity 92%
Wind Speed Calm
Barometer 29.81 in (1009.7 mb)
Dewpoint 30°F (-1°C)
Visibility 4.00 mi
Last update 14 Mar 1:54 am EDT
Extended Forecast for

Merrimac MA

  • Overnight

    Overnight: A chance of rain and snow showers before 3am, then a chance of rain showers between 3am and 5am. Cloudy early, then clearing, with a low around 33. South wind around 7 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 33 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Scattered sprinkles before 2pm, then scattered sprinkles after 3pm. Increasing clouds, with a high near 44. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 38 mph.

    High: 44 °F

    Partly Sunny
    then Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27. West wind 7 to 13 mph, with gusts as high as 28 mph.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 41. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain, mainly after 4am. Mostly cloudy, with a low around 35. Southeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday

    Monday: Rain, mainly after 8am. High near 60. South wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%.

    High: 60 °F

    Rain

  • Monday Night

    Monday Night: Rain, mainly before 5am. Low around 41. Breezy, with a south wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%.

    Low: 41 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: A chance of rain before 8am. Partly sunny, with a high near 49. West wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 49 °F

    Chance Rain
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20. West wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of rain and snow showers before 3am, then a chance of rain showers between 3am and 5am. Cloudy early, then clearing, with a low around 33. South wind around 7 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Scattered sprinkles before 2pm, then scattered sprinkles after 3pm. Increasing clouds, with a high near 44. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 38 mph.
Saturday Night
Mostly clear, with a low around 27. West wind 7 to 13 mph, with gusts as high as 28 mph.
Sunday
Partly sunny, with a high near 41. Calm wind becoming southeast around 6 mph in the afternoon.
Sunday Night
A chance of rain, mainly after 4am. Mostly cloudy, with a low around 35. Southeast wind around 6 mph. Chance of precipitation is 30%.
Monday
Rain, mainly after 8am. High near 60. South wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%.
Monday Night
Rain, mainly before 5am. Low around 41. Breezy, with a south wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%.
Tuesday
A chance of rain before 8am. Partly sunny, with a high near 49. West wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 20. West wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 39. West wind around 7 mph.
Wednesday Night
Mostly cloudy, with a low around 25. Light south wind.
Thursday
Partly sunny, with a high near 44. South wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 28. Southwest wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 48. Southwest wind 5 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.81°N 70.99°W (Elev. 151 ft)
Last Update:
1:44 am EDT Mar 14, 2026
Forecast Valid:
2am EDT Mar 14, 2026-6pm EDT Mar 20, 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