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

59°F

15°C

Humidity 90%
Wind Speed Vrbl 3 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 16 Jun 9:54 pm EDT
Extended Forecast for

Merrimac MA

  • Tonight

    Tonight: A slight chance of showers after 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 56. Light east wind. Chance of precipitation is 20%.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 10am, then a slight chance of showers after 1pm. Patchy fog before noon. Otherwise, cloudy, with a high near 69. East wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A chance of showers. Cloudy, with a low around 60. Southeast wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 81. Southwest wind 3 to 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Mostly cloudy, with a low around 66. Light southwest wind. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    Showers

  • Juneteenth

    Juneteenth: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 90. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 90 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 9pm. Partly cloudy, with a low around 65. Southwest wind around 9 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82. West wind around 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. West wind around 6 mph.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers after 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 56. Light east wind. Chance of precipitation is 20%.
Tuesday
A slight chance of showers before 10am, then a slight chance of showers after 1pm. Patchy fog before noon. Otherwise, cloudy, with a high near 69. East wind 3 to 6 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers. Cloudy, with a low around 60. Southeast wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 81. Southwest wind 3 to 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 66. Light southwest wind. Chance of precipitation is 20%.
Juneteenth
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 90. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 9pm. Partly cloudy, with a low around 65. Southwest wind around 9 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 82. West wind around 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 60. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 81. Northwest wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 63. Southwest wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 82. Southwest wind 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 64. West wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 86. West wind 5 to 7 mph becoming south in the afternoon.
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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:
3:26 pm EDT Jun 16, 2025
Forecast Valid:
10pm EDT Jun 16, 2025-6pm EDT Jun 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation