Merrimac, MA Weather Forecast
Essex County, Massachusetts
Live radar, warnings and storm tracking for Merrimac, with free alerts the moment it counts.
The next few hours
Dry for the moment, with rain moving in this morning
It is 40° with a dew point of 36°, which is dry for this time of year. The sky is mostly cloudy. The air is close to calm.
The wind turns to the east-northeast around 9 AM. The first rain arrives between 10 AM and 11 AM, with the best chance of it around 4 AM. That leaves a usable window outdoors until about 10 AM, and it closes quickly after that.
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
A long wet stretch ahead
Wet weather moves in around 10 AM. Total accumulation over the window comes to about 0.43 in.
The overnight low settles near 39°. Tomorrow reaches 48°, 9° warmer than today. It also gets muggier, so tomorrow will feel warmer than the number on its own suggests.
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
28–57°F across the weekThe week runs between 28° and 50°, with Tuesday the warmest day of it. There is no real trend across it: one day looks much like the next. Friday is the wettest day, peaking near 100%. 5 of the 7 days stay dry.
Free alerts for Merrimac
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Merrimac, MA at a glance
Merrimac is home to about 6,718 people in Essex County, across 8.5 square miles. It ranks 224th by population of 283 places in Massachusetts with a forecast here. The nearest neighbour with its own forecast is Newton, 3 miles away.
- County
- Essex County
- Population
- 6,718 2023 est.
- Land area
- 8.5 sq mi
- People per sq mi
- 790
- Forecast point
- 42.8386°N, 71.0120°W
How well can the network see Merrimac?
The nearest Doppler radar is KBOX (Boston, MA), to the S. Its lowest scan passes about 4,700 ft above Merrimac. The beam is above the lowest few thousand feet here, so a warning for Merrimac can come before anything looks dramatic on radar.
The closest weather station is KLWM (Lawrence Muni). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Merrimac
- Newton, NH3 mi
- Amesbury Town, MA3 mi
- West Newbury, MA4 mi
- Plaistow, NH4 mi
- Haverhill, MA5 mi
- Groveland, MA6 mi
- Kingston, NH6 mi
- Newburyport, MA7 mi
Elsewhere in Massachusetts
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