Station 44090 - Cape Cod Bay, MA (221)
August 18, 2026 6:30 am EDTLocation: 41.84N 70.329W
Significant Wave Height: 1.3 ft
Dominant Wave Period: 3 sec
Average Period: 2.2 sec
Mean Wave Direction: NNE (20°)
Air Temperature: 68.7°F (20.4°C)
Water Temperature: 69.8°F (21.0°C)
Today - 77°F
Aug 18, 2026
13 mph N
Patchy Fog then Mostly Cloudy
Patchy fog before 10am. Mostly cloudy, with a high near 77. North wind around 13 mph.
Tonight - 70°F
Aug 18, 2026
3 to 9 mph SE
Patchy Fog
Patchy fog after 11pm. Mostly cloudy, with a low around 70. Southeast wind 3 to 9 mph.
Wednesday - 81°F
Aug 19, 2026
6 to 14 mph SW
Patchy Fog then Partly Sunny
Patchy fog before 9am. Partly sunny, with a high near 81. Southwest wind 6 to 14 mph.
Wednesday Night - 72°F
Aug 19, 2026
6 to 13 mph SW
Partly Cloudy
Partly cloudy, with a low around 72. Southwest wind 6 to 13 mph.
Thursday - 80°F
Aug 20, 2026
6 to 9 mph SW
Mostly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 80. Southwest wind 6 to 9 mph. Chance of precipitation is 20%.
Thursday Night - 69°F
Aug 20, 2026
5 to 8 mph W
Chance Showers And Thunderstorms
A slight chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West wind 5 to 8 mph. Chance of precipitation is 40%.
Friday - 75°F
Aug 21, 2026
5 to 9 mph NE
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 75. Northeast wind 5 to 9 mph. Chance of precipitation is 30%.
Friday Night - 69°F
Aug 21, 2026
5 to 8 mph NE
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a low around 69. Northeast wind 5 to 8 mph.
Saturday - 75°F
Aug 22, 2026
8 to 12 mph E
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 75. East wind 8 to 12 mph. Chance of precipitation is 40%.
Saturday Night - 70°F
Aug 22, 2026
7 to 10 mph E
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a low around 70. East wind 7 to 10 mph. Chance of precipitation is 60%.
Sunday - 76°F
Aug 23, 2026
8 to 12 mph SE
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a high near 76. Southeast wind 8 to 12 mph. Chance of precipitation is 60%.
Sunday Night - 69°F
Aug 23, 2026
12 mph SW
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 69. Southwest wind around 12 mph. Chance of precipitation is 40%.
Monday - 76°F
Aug 24, 2026
9 to 15 mph SW
Chance Rain Showers
A chance of rain showers before 3pm. Mostly sunny, with a high near 76. Southwest wind 9 to 15 mph. Chance of precipitation is 30%.
Monday Night - 68°F
Aug 24, 2026
9 to 15 mph W
Partly Cloudy
Partly cloudy, with a low around 68. West wind 9 to 15 mph.