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

75°F

24°C

Humidity 43%
Wind Speed Calm
Barometer 29.95 in (1014.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 3 Sep 12:54 pm EDT
Extended Forecast for

Merrimac MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 78. Southeast wind around 8 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. South wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly between 1am and 3am. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 60. South wind 6 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Mostly Clear
    then Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers, mainly between 8am and 10am. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 84. South wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. South wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 85. Southwest wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 85 °F

    Patchy Fog
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Patchy fog. Otherwise, mostly cloudy, with a low around 57. West wind around 6 mph. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers before 3pm. Partly sunny, with a high near 74. West wind 3 to 5 mph. Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 78. Southeast wind around 8 mph.
Tonight
Mostly clear, with a low around 55. South wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
A chance of showers, mainly between 1am and 3am. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 60. South wind 6 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers, mainly between 8am and 10am. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 84. South wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 65. South wind 6 to 8 mph, with gusts as high as 20 mph.
Saturday
A chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 85. Southwest wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Saturday Night
Showers likely and possibly a thunderstorm. Patchy fog. Otherwise, mostly cloudy, with a low around 57. West wind around 6 mph. Chance of precipitation is 60%.
Sunday
A chance of showers before 3pm. Partly sunny, with a high near 74. West wind 3 to 5 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 51. Light west wind.
Monday
Sunny, with a high near 75. Northwest wind around 5 mph.
Monday Night
Mostly clear, with a low around 49. Calm wind.
Tuesday
Sunny, with a high near 73. Light and variable wind becoming southeast around 6 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.84°N 70.99°W (Elev. 98 ft)
Last Update:
10:26 am EDT Sep 3, 2025
Forecast Valid:
1pm EDT Sep 3, 2025-6pm EDT Sep 9, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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