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

74°F

23°C

Humidity 54%
Wind Speed E 10 mph
Barometer 30.21 in (1023.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Aug 11:54 am EDT
Extended Forecast for

Merrimac MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 78. East wind around 9 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Southwest wind around 5 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 93. Southwest wind around 7 mph. Chance of precipitation is 40%.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North wind around 6 mph. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 74. North wind around 6 mph becoming east in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Light and variable wind.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 78. East wind around 9 mph.
Tonight
Mostly clear, with a low around 58. Light and variable wind.
Saturday
Sunny, with a high near 83. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Southwest wind around 5 mph.
Sunday
A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 93. Southwest wind around 7 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North wind around 6 mph. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 74. North wind around 6 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 53. Light and variable wind.
Tuesday
Mostly sunny, with a high near 74. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 56. Southeast wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 75. Southeast wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 56. Southeast wind around 5 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 78. North wind around 6 mph becoming east 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:
10:57 am EDT Aug 15, 2025
Forecast Valid:
12pm EDT Aug 15, 2025-6pm EDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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