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

61°F

16°C

Humidity 75%
Wind Speed S 5 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 25 Jul 2:54 am EDT
Extended Forecast for

Merrimac MA

  • Overnight

    Overnight: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 54. Light and variable wind.

    Low: 54 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 75. Calm wind becoming east 5 to 7 mph in the morning.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55. Light and variable wind.

    Low: 55 °F

    Mostly Clear

  • Monday

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

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. Light south wind.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 79. South wind 3 to 7 mph. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. South wind 3 to 5 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Overnight
Clear, with a low around 57. Calm wind.
Saturday
Sunny, with a high near 79. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 54. Light and variable wind.
Sunday
Mostly sunny, with a high near 75. Calm wind becoming east 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 55. Light and variable wind.
Monday
Mostly sunny, with a high near 79. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 58. Light south wind.
Tuesday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 79. South wind 3 to 7 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. South wind 3 to 5 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers. Partly sunny, with a high near 75. Southeast wind 5 to 7 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 58. Light and variable wind. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 79. North wind around 6 mph. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 60. Calm wind.
Friday
Mostly sunny, with a high near 77. Calm wind becoming east 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:
12:32 am EDT Jul 25, 2026
Forecast Valid:
3am EDT Jul 25, 2026-6pm EDT Jul 31, 2026
 
Forecast Discussion
 
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Additional Resources

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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