Current conditions at

Lawrence Municipal Airport (KLWM)

Lat: 42.71°NLon: 71.13°WElev: 135ft.

A Few Clouds

95°F

35°C

Humidity 46%
Wind Speed W 8 mph
Barometer 29.89 in (1011.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 2 Jul 3:54 pm EDT
Extended Forecast for

Merrimac MA

Extreme Heat Warning July 2, 03:59pm until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 03:59pm until July 4, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. Heat index values as high as 103. West wind 5 to 8 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73. Light west wind.

    Low: 73 °F

    Partly Cloudy

  • Independence Day

    Independence Day: A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 91. Northwest wind 5 to 8 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm.  Mostly clear, with a low around 66. Light northwest wind.  Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Light and variable wind becoming north around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. Light and variable wind.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 79. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 79 °F

    Partly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 76. West wind around 5 mph.
Friday
Sunny and hot, with a high near 99. Heat index values as high as 103. West wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 73. Light west wind.
Independence Day
A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91. Northwest wind 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers before 8pm. Mostly clear, with a low around 66. Light northwest wind. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 87. Light and variable wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 63. Light and variable wind.
Monday
Partly sunny, with a high near 79. Calm wind becoming east 5 to 7 mph in the afternoon.
Monday Night
A chance of showers. Mostly cloudy, with a low around 61. Light southeast wind. Chance of precipitation is 30%.
Tuesday
A chance of showers before 11am. Partly sunny, with a high near 79. East wind 3 to 8 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 83. Calm wind becoming east around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. Light and variable wind.
Thursday
Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.82°N 71.02°W (Elev. 197 ft)
2:49 pm EDT Jul 2, 2026
3pm EDT Jul 2, 2026-6pm EDT Jul 9, 2026
 
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Additional Resources

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