National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lawrence Municipal Airport (KLWM)

Lat: 42.71°NLon: 71.13°WElev: 135ft.

Fair

62°F

17°C

Humidity 96%
Wind Speed Calm
Barometer 30.04 in (1017.2 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 29 Jun 4:54 am EDT
Extended Forecast for

Merrimac MA

Extreme Heat Watch July 1, 10:00am until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Sunny, with a high near 81. Light and variable wind becoming east around 6 mph in the morning.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. Light south wind.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 89. Southwest wind 3 to 5 mph.

    High: 89 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 68. Southwest wind 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 68 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 9am, then a slight chance of showers after 5pm. Mostly sunny and hot, with a high near 96. Southwest wind around 6 mph. Chance of precipitation is 20%.

    High: 96 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly before midnight. Partly cloudy, with a low around 74. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny and hot, with a high near 100. West wind around 6 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. Light west wind.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers after 5pm. Mostly sunny and hot, with a high near 97. West wind 5 to 8 mph. Chance of precipitation is 30%.

    High: 97 °F

    Sunny then
    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 81. Light and variable wind becoming east around 6 mph in the morning.
Tonight
Mostly clear, with a low around 62. Light south wind.
Tuesday
Increasing clouds, with a high near 89. Southwest wind 3 to 5 mph.
Tuesday Night
A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 68. Southwest wind 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A slight chance of showers before 9am, then a slight chance of showers after 5pm. Mostly sunny and hot, with a high near 96. Southwest wind around 6 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 74. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
Sunny and hot, with a high near 100. West wind around 6 mph.
Thursday Night
Mostly clear, with a low around 77. Light west wind.
Friday
A chance of showers after 5pm. Mostly sunny and hot, with a high near 97. West wind 5 to 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers before 7pm. Partly cloudy, with a low around 71. Light west wind. Chance of precipitation is 30%.
Independence Day
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90. Light and variable wind becoming northeast around 6 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Light southwest wind. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 30%.
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 70.99°W (Elev. 98 ft)
Last Update:
4:38 am EDT Jun 29, 2026
Forecast Valid:
4am EDT Jun 29, 2026-6pm EDT Jul 5, 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