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.

Overcast

46°F

8°C

Humidity 73%
Wind Speed S 6 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 22 Apr 8:54 pm EDT
Extended Forecast for

Merrimac MA

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, cloudy, with a low around 39. South wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Patchy Fog

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 59. West wind 5 to 11 mph, with gusts as high as 23 mph.

    High: 59 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. Northwest wind 3 to 6 mph.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 55. North wind around 6 mph.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 54. Light and variable wind becoming east around 6 mph in the morning.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 55. Calm wind becoming east around 6 mph in the afternoon.

    High: 55 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 10pm. Otherwise, cloudy, with a low around 39. South wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 59. West wind 5 to 11 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 35. Northwest wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 55. North wind around 6 mph.
Friday Night
Partly cloudy, with a low around 35. Calm wind.
Saturday
Mostly sunny, with a high near 54. Light and variable wind becoming east around 6 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 37. Calm wind.
Sunday
Partly sunny, with a high near 55. Calm wind becoming east around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 38. Calm wind.
Monday
Mostly sunny, with a high near 56. Calm wind becoming east 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 39. Light east wind.
Tuesday
A chance of showers. Partly sunny, with a high near 57. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 42. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 50%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 57. East wind 3 to 7 mph. Chance of precipitation is 40%.
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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:
7:05 pm EDT Apr 22, 2026
Forecast Valid:
9pm EDT Apr 22, 2026-6pm EDT Apr 29, 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