Hazardous Weather Conditions
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 Index | 103°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
NOW until 8:00pm Sat

Extreme Heat Warning
Tonight

Low: 76 °F
Mostly Clear
Friday

High: 99 °F
Hot
Friday Night

Low: 73 °F
Partly Cloudy
Independence Day
High: 91 °F
Mostly Sunny
then Chance
ShowersSaturday Night
Low: 66 °F
Chance
Showers then
Mostly ClearSunday

High: 87 °F
Sunny
Sunday Night

Low: 63 °F
Partly Cloudy
Monday

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Merrimac MA
42.82°N 71.02°W (Elev. 197 ft)
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



