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Newmarket, NH Marine Weather Forecast

Station BGXN3 - Greenland, Great Bay Reserve, NH

August 18, 2026 5:45 am EDT
Location: 43.059N 70.83W
Wind Speed: 0.0 knots
Atmospheric Pressure: 29.85 in (1011.0 mb)
Air Temperature: 66.9°F (19.4°C)
Dew Point: 65.8°F (18.8°C)


Today - 75°F
Aug 18, 2026
0 to 5 mph NE
Partly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 3pm. Partly sunny, with a high near 75. Northeast wind 0 to 5 mph. Chance of precipitation is 20%.
Tonight - 63°F
Aug 18, 2026
0 mph
Patchy Fog
Patchy fog between 9pm and 5am. Mostly cloudy, with a low around 63. East wind around 0 mph.
Wednesday - 82°F
Aug 19, 2026
0 to 5 mph SW
Partly Sunny
Partly sunny, with a high near 82. Southwest wind 0 to 5 mph.
Wednesday Night - 65°F
Aug 19, 2026
0 to 5 mph SW
Partly Cloudy
Partly cloudy, with a low around 65. Southwest wind 0 to 5 mph.
Thursday - 79°F
Aug 20, 2026
0 to 5 mph N
Mostly Sunny
Mostly sunny, with a high near 79. North wind 0 to 5 mph.
Thursday Night - 62°F
Aug 20, 2026
0 to 5 mph W
Partly Cloudy
Partly cloudy, with a low around 62.
Friday - 78°F
Aug 21, 2026
0 to 5 mph NE
Mostly Sunny
Mostly sunny, with a high near 78.
Friday Night - 62°F
Aug 21, 2026
0 to 5 mph NE
Partly Cloudy
Partly cloudy, with a low around 62.
Saturday - 73°F
Aug 22, 2026
0 to 5 mph NE
Chance Rain Showers
A chance of rain showers after 9am. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Saturday Night - 62°F
Aug 22, 2026
0 to 5 mph NE
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Sunday - 73°F
Aug 23, 2026
5 mph NE
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Sunday Night - 62°F
Aug 23, 2026
5 mph E
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Monday - 76°F
Aug 24, 2026
5 mph SW
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
Monday Night - 60°F
Aug 24, 2026
5 mph W
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 60.

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