Merrimack River Entrance, MA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Mon
Jun 29 		Mostly Clear
Close Hourly 		-º / 60º 8% S 8 mph 84%
6pm Sunny 70º 3% SE 7 mph 74%
7pm Mostly Sunny 68º 4% SE 6 mph 75%
8pm Mostly Sunny 66º 4% SE 5 mph 79%
9pm Mostly Clear 66º 3% SSE 4 mph 78%
10pm Mostly Clear 65º 3% S 3 mph 82%
11pm Mostly Clear 64º 3% S 3 mph 85%
Tue
Jun 30 		Partly Cloudy
View Hourly 		82º / 69º 7% S 11 mph 68%
12am Clear 63º 5% SSW 3 mph 87%
1am Clear 63º 8% SSW 3 mph 89%
2am Clear 62º 8% SSW 3 mph 90%
3am Mostly Clear 62º 8% SSW 3 mph 91%
4am Partly Cloudy 61º 8% SSW 2 mph 92%
5am Partly Cloudy 61º 8% SSW 2 mph 91%
6am Partly Cloudy 62º 8% SSW 2 mph 92%
7am Partly Cloudy 66º 7% SSW 2 mph 87%
8am Partly Cloudy 69º 6% SSW 3 mph 84%
9am Partly Cloudy 72º 5% SSW 4 mph 78%
10am Partly Cloudy 76º 3% S 5 mph 72%
11am Partly Cloudy 78º 2% SSE 7 mph 67%
12pm Partly Cloudy 80º 2% SSE 8 mph 63%
1pm Partly Cloudy 81º 1% SSE 9 mph 58%
2pm Partly Cloudy 81º 7% SE 11 mph 59%
3pm Partly Cloudy 81º 3% SSE 11 mph 61%
4pm Mostly Cloudy 81º 3% SSE 11 mph 62%
5pm Mostly Cloudy 81º 3% SSE 11 mph 60%
6pm Mostly Cloudy 80º 4% SSE 10 mph 63%
7pm Mostly Cloudy 78º 5% S 9 mph 66%
8pm Cloudy 76º 22% S 9 mph 70%
9pm Mostly Cloudy 75º 22% S 9 mph 71%
10pm Mostly Cloudy 75º 24% SSW 9 mph 72%
11pm Few Showers 74º 31% SSW 10 mph 72%
Wed
Jul 1 		Partly Cloudy
View Hourly 		92º / 73º 11% WSW 11 mph 60%
12am Showers 73º 47% SSW 10 mph 71%
1am Showers 72º 44% SSW 10 mph 74%
2am Mostly Cloudy 71º 7% SSW 11 mph 74%
3am Few Showers 70º 31% SW 11 mph 76%
4am Mostly Cloudy 70º 24% SW 11 mph 76%
5am Partly Cloudy 70º 8% SW 11 mph 77%
6am Partly Cloudy 71º 9% SW 9 mph 76%
7am Partly Cloudy 73º 9% SW 9 mph 75%
8am Partly Cloudy 75º 3% SW 10 mph 73%
9am Partly Cloudy 79º 2% WSW 11 mph 68%
10am Partly Cloudy 83º 2% WSW 10 mph 62%
11am Partly Cloudy 86º 1% WSW 10 mph 58%
12pm Partly Cloudy 88º 3% WSW 10 mph 55%
1pm Partly Cloudy 91º 3% WSW 10 mph 52%
2pm Partly Cloudy 91º 5% WSW 9 mph 53%
3pm Partly Cloudy 91º 10% WSW 9 mph 53%
4pm Partly Cloudy 90º 11% WSW 9 mph 54%
5pm Partly Cloudy 87º 8% SW 9 mph 58%
Thu
Jul 2 		Mostly Sunny 95º / 75º 24% WSW 9 mph 58%
Fri
Jul 3 		Mostly Sunny 94º / 72º 24% W 10 mph 56%
Sat
Jul 4 		PM Thunderstorms 86º / 68º 50% W 9 mph 59%
Sun
Jul 5 		Partly Cloudy 82º / 66º 24% NNE 8 mph 63%
Mon
Jul 6 		Showers 79º / 64º 35% ENE 9 mph 66%

Weather Radar for Merrimack River Entrance, MA See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Merrimack River Entrance, MA

This Afternoon
High : 77ºF
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Tonight
Low : 61ºF
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Tuesday
High : 85ºF
SW wind 5 to 10 kt becoming SSE in the afternoon. Mostly sunny. Seas 1 ft or less.
Tuesday Night
Low : 69ºF
SW wind around 10 kt. Scattered showers after 2am. Seas 1 ft or less.
Wednesday
High : 92ºF
WSW wind 5 to 10 kt. Mostly sunny. Seas 1 ft or less.
Wednesday Night
Low : 75ºF
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Thursday
High : 98ºF
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Thursday Night
Low : 76ºF
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Friday
High : 97ºF
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

NOAA Buoy Data Near Merrimack River Entrance, MA See Map

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    Wind Speed Forecast for Merrimack River Entrance, MA

    MondayTuesdayWednesday
    Wind Speed (MPH) 7332511109119109
    10pm2am6am10am2pm6pm10pm2am6am10am2pm6pm
    MPH 7332511109119109
    DIR SESSSWSSWSSESSESSWSSWSWWSWWSW

    Current Weather Conditions In Merrimack River Entrance, MA

    As Of: 38 minutes ago

    • 70ºF
    • 70ºF
    • 7mph
    • 0º (SE)
    • 7mph
    • Sunny
    • 10mi
    • 30.09"
    • 74%
    • 0ºF

    The weather right now in Merrimack River Entrance, MA is Sunny. The current temperature is 70°F, and the expected high and low for today, Monday, June 29, 2026, are -° high temperature and 60°F low temperature. The wind is currently blowing at 7 miles per hour, and coming from the Southeast. The wind is gusting to 7 mph. With the wind and the atmosphere the temperature feels like 70° Fahrenheit. Expected precipitation is 3 percent, with current humidity at 74 percent, and air pressure at 30.09 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Extreme Heat Watch - 12:59pm Mon Jun 29 2026

    ...EXTREME HEAT WATCH NOW IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING...

    WHAT: Dangerously hot conditions with heat index values up to 111
    possible.

    WHERE: Much of Southern New England except for Cape Cod, Martha's
    Vineyard, Nantucket and Block Island.

    WHEN: From Wednesday morning through Saturday evening.

    IMPACTS: Heat related illnesses increase significantly during
    extreme heat and high humidity events.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Drink plenty of fluids, stay in an air-conditioned room, stay out of
    the sun, and check up on relatives and neighbors.

    Do not leave young children and pets in unattended vehicles. Car
    interiors will reach lethal temperatures in a matter of minutes.

    Monitor the latest forecasts and warnings for updates.

    &&