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.

Mostly Cloudy

44°F

7°C

Humidity 71%
Wind Speed E 14 G 26 mph
Barometer 30.09 in (1019.0 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 11 Mar 5:54 am EDT
Extended Forecast for

Merrimac MA

  • Today

    Today: A slight chance of rain. Patchy fog between 10am and 1pm. Otherwise, cloudy, with a high near 42. East wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Tonight

    Tonight: A chance of rain, with thunderstorms also possible after 11pm. Cloudy, with a temperature rising to around 56 by 2am. Light southeast wind becoming southwest 5 to 10 mph in the evening. Chance of precipitation is 40%.

    Low: 41 °F⇑

    Chance Rain

  • Thursday

    Thursday: Rain likely before 5pm, then a chance of rain and snow. Cloudy, with a temperature falling to around 37 by 5pm. Southwest wind 10 to 14 mph becoming west in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 55 °F⇓

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of snow, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 26. West wind 7 to 10 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 26 °F

    Chance Snow
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 44. South wind 6 to 9 mph.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain and snow before 10pm, then a chance of rain. Mostly cloudy, with a low around 33. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 46. West wind 11 to 16 mph, with gusts as high as 31 mph.

    High: 46 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 44. Light and variable wind becoming south around 6 mph in the morning.

    High: 44 °F

    Mostly Cloudy

Detailed Forecast

Today
A slight chance of rain. Patchy fog between 10am and 1pm. Otherwise, cloudy, with a high near 42. East wind 6 to 9 mph. Chance of precipitation is 20%.
Tonight
A chance of rain, with thunderstorms also possible after 11pm. Cloudy, with a temperature rising to around 56 by 2am. Light southeast wind becoming southwest 5 to 10 mph in the evening. Chance of precipitation is 40%.
Thursday
Rain likely before 5pm, then a chance of rain and snow. Cloudy, with a temperature falling to around 37 by 5pm. Southwest wind 10 to 14 mph becoming west in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night
A chance of snow, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 26. West wind 7 to 10 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 44. South wind 6 to 9 mph.
Friday Night
A chance of rain and snow before 10pm, then a chance of rain. Mostly cloudy, with a low around 33. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 46. West wind 11 to 16 mph, with gusts as high as 31 mph.
Saturday Night
Partly cloudy, with a low around 25. West wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly cloudy, with a high near 44. Light and variable wind becoming south around 6 mph in the morning.
Sunday Night
Rain likely, mainly after 2am. Cloudy, with a low around 33. Southeast wind 7 to 9 mph. Chance of precipitation is 60%.
Monday
Rain. High near 57. Southeast wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Monday Night
Rain likely. Mostly cloudy, with a low around 29. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Tuesday
Sunny, with a high near 40. West wind around 11 mph, with gusts as high as 23 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.84°N 71.01°W (Elev. 135 ft)
Last Update:
2:50 am EDT Mar 11, 2026
Forecast Valid:
6am EDT Mar 11, 2026-6pm EDT Mar 17, 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