


Hazardous Weather Conditions
Current conditions at
Lawrence Municipal Airport (KLWM)
Lat: 42.71°NLon: 71.13°WElev: 135ft.
Fair
26°C
78°F
Humidity | 82% |
Wind Speed | Calm |
Barometer | 1017.4 mb (30.05 in) |
Dewpoint | 22°C (72°F) |
Visibility | 16 km |
Heat Index | 27°C (80°F) |
Last update | 16 Jul 7:54 am EDT |
Extended Forecast for
Merrimac MA
Heat Advisory July 16, 08:27am until July 17, 07:00pm
NOW until 7:00pm Thu
Heat Advisory
Today
High: 33 °C
Hot
Tonight
Low: 22 °C
Increasing
CloudsThursday
High: 32 °C
Showers and
Patchy Fog
then Chance
ShowersThursday Night
Low: 23 °C
Chance
Showers then
Partly CloudyFriday
High: 28 °C
Sunny
Friday Night
Low: 16 °C
Mostly Clear
Saturday
High: 27 °C
Mostly Sunny
Saturday Night
Low: 18 °C
Partly Cloudy
Detailed Forecast
Today
Sunny and hot, with a high near 33. Heat index values as high as 37. Calm wind becoming south 5 to 10 km/h in the afternoon.
Tonight
Increasing clouds, with a low around 22. Southwest wind around 8 km/h.
Thursday
Showers and possibly a thunderstorm before 10am, then a chance of showers between 10am and 11am, then a chance of showers and thunderstorms after 11am. Patchy fog before 10am. High near 32. Heat index values as high as 36. Southwest wind around 11 km/h. Chance of precipitation is 80%. New rainfall amounts between 2.5 and 5 mm possible.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 23. Southwest wind around 10 km/h. Chance of precipitation is 30%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 28. Northwest wind around 11 km/h.
Friday Night
Mostly clear, with a low around 16. Calm wind.
Saturday
Mostly sunny, with a high near 27. Calm wind becoming southeast 5 to 8 km/h in the morning.
Saturday Night
Partly cloudy, with a low around 18. Southwest wind 5 to 8 km/h.
Sunday
A chance of showers. Partly sunny, with a high near 27. Southwest wind 5 to 10 km/h. Chance of precipitation is 40%.
Sunday Night
A chance of showers before 10pm. Partly cloudy, with a low around 17. Calm wind. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 26. North wind 5 to 8 km/h becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 16. Calm wind.
Tuesday
Mostly sunny, with a high near 27. Calm wind becoming east 5 to 10 km/h in the morning.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Merrimac MA
42.84°N 70.99°W (Elev. 98 m)
42.84°N 70.99°W (Elev. 98 m)
6:50 am EDT Jul 16, 2025
8am EDT Jul 16, 2025-6pm EDT Jul 22, 2025