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

43°F

6°C

Humidity 89%
Wind Speed SW 10 mph
Barometer 29.92 in (1013.5 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 7 Mar 4:54 pm EST
Extended Forecast for

Merrimac MA

  • This Afternoon

    This Afternoon: Patchy drizzle and fog. Cloudy, with a high near 47. Southwest wind around 9 mph, with gusts as high as 20 mph.

    High: 47 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Tonight

    Tonight: Patchy drizzle before midnight, then a chance of rain after 4am. Patchy fog. Otherwise, cloudy, with a low around 41. Southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: A chance of rain before 8am, then patchy drizzle between 8am and 11am. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 56. West wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 56 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33. West wind around 6 mph.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 36. Southwest wind 5 to 7 mph.

    Low: 36 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. Southwest wind 3 to 5 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. South wind around 5 mph becoming light and variable.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 9am. Mostly cloudy, with a high near 55. East wind 6 to 8 mph becoming south in the afternoon. Chance of precipitation is 40%.

    High: 55 °F

    Chance Rain

Detailed Forecast

This Afternoon
Patchy drizzle and fog. Cloudy, with a high near 47. Southwest wind around 9 mph, with gusts as high as 20 mph.
Tonight
Patchy drizzle before midnight, then a chance of rain after 4am. Patchy fog. Otherwise, cloudy, with a low around 41. Southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday
A chance of rain before 8am, then patchy drizzle between 8am and 11am. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 56. West wind 7 to 9 mph. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 33. West wind around 6 mph.
Monday
Mostly sunny, with a high near 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 36. Southwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 65. Southwest wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 36. South wind around 5 mph becoming light and variable.
Wednesday
A chance of rain after 9am. Mostly cloudy, with a high near 55. East wind 6 to 8 mph becoming south in the afternoon. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Cloudy, with a low around 38. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Thursday
Rain likely. Cloudy, with a high near 58. Southwest wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow. Partly cloudy, with a low around 24. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 46. West wind around 9 mph, with gusts as high as 20 mph.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Southwest wind around 8 mph. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrimac MA
 42.84°N 71.01°W (Elev. 135 ft)
Last Update:
3:12 pm EST Mar 7, 2026
Forecast Valid:
5pm EST Mar 7, 2026-6pm EDT Mar 14, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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