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.

Rain Fog/Mist

62°F

17°C

Humidity 93%
Wind Speed E 6 mph
Barometer 29.97 in (1014.8 mb)
Dewpoint 60°F (16°C)
Visibility 4.00 mi
Last update 22 Jun 11:54 pm EDT
Extended Forecast for

Merrimac MA

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Patchy fog. Low around 57. Southeast wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers. Patchy fog before 11am. Otherwise, cloudy, with a high near 74. South wind around 6 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 74 °F

    Showers
    Likely and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. Northwest wind 3 to 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 81. Northwest wind 6 to 8 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. Light northwest wind.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 84. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 61. Light south wind. Chance of precipitation is 60%.

    Low: 61 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 80. South wind 5 to 7 mph. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers before 11pm. Mostly cloudy, with a low around 63. Light west wind. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Patchy fog. Low around 57. Southeast wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers. Patchy fog before 11am. Otherwise, cloudy, with a high near 74. South wind around 6 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 58. Northwest wind 3 to 5 mph.
Wednesday
Sunny, with a high near 81. Northwest wind 6 to 8 mph.
Wednesday Night
Mostly clear, with a low around 60. Light northwest wind.
Thursday
Mostly sunny, with a high near 84. Calm wind becoming southeast around 6 mph in the afternoon.
Thursday Night
Showers likely, mainly after 4am. Mostly cloudy, with a low around 61. Light south wind. Chance of precipitation is 60%.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 80. South wind 5 to 7 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers before 11pm. Mostly cloudy, with a low around 63. Light west wind. Chance of precipitation is 40%.
Saturday
A chance of showers after 11am. Partly sunny, with a high near 81. Light and variable wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 62. Calm wind.
Sunday
Sunny, with a high near 81. Light and variable wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 61. Calm wind.
Monday
Mostly sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon.
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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:
8:56 pm EDT Jun 22, 2026
Forecast Valid:
12am EDT Jun 23, 2026-6pm EDT Jun 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation