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

67°F

19°C

Humidity 73%
Wind Speed Calm
Barometer 30.08 in (1018.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 31 Aug 8:54 pm EDT
Extended Forecast for

Merrimac MA

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. Light southwest wind.

    Low: 61 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Showers likely, mainly after 8am. Patchy fog. Otherwise, cloudy, with a high near 69. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 69 °F

    Showers
    Likely and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 1am. Patchy fog before 11pm. Otherwise, cloudy, with a low around 59. Light east wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 72. East wind 3 to 6 mph.

    High: 72 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers, with thunderstorms also possible after 5am. Low around 60. Light southeast wind. Chance of precipitation is 80%.

    Low: 60 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 79. Southwest wind around 7 mph. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79. Northwest wind around 6 mph.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Light northwest wind.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 61. Light southwest wind.
Tuesday
Showers likely, mainly after 8am. Patchy fog. Otherwise, cloudy, with a high near 69. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers, mainly before 1am. Patchy fog before 11pm. Otherwise, cloudy, with a low around 59. Light east wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, with a high near 72. East wind 3 to 6 mph.
Wednesday Night
Showers, with thunderstorms also possible after 5am. Low around 60. Light southeast wind. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. High near 79. Southwest wind around 7 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 79. Northwest wind around 6 mph.
Friday Night
Partly cloudy, with a low around 58. Light northwest wind.
Saturday
Mostly sunny, with a high near 72. North wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 54. Light north wind.
Sunday
Mostly sunny, with a high near 71. Northeast wind around 6 mph.
Sunday Night
Partly cloudy, with a low around 53. Calm wind.
Labor Day
Sunny, with a high near 76. Light and variable wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.84°N 70.99°W (Elev. 98 ft)
Last Update:
2:21 pm EDT Aug 31, 2026
Forecast Valid:
9pm EDT Aug 31, 2026-6pm EDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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