Barnstable Harbor, MA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sat
Jul 4 		Partly Cloudy
Close Hourly 		94º / 68º 15% W 10 mph 51%
12pm Mostly Sunny 91º 6% NW 5 mph 49%
1pm Partly Cloudy 92º 7% W 6 mph 47%
2pm Partly Cloudy 91º 11% WSW 8 mph 50%
3pm Partly Cloudy 88º 8% W 9 mph 56%
4pm Partly Cloudy 87º 24% W 9 mph 56%
5pm Partly Cloudy 87º 21% WSW 9 mph 57%
6pm Partly Cloudy 87º 24% WSW 9 mph 58%
7pm Partly Cloudy 84º 17% WNW 7 mph 64%
8pm Partly Cloudy 82º 15% WNW 4 mph 69%
9pm Mostly Cloudy 79º 16% NW 4 mph 73%
10pm Showers 78º 43% NW 4 mph 77%
11pm Showers 77º 36% NW 6 mph 80%
Sun
Jul 5 		Partly Cloudy
View Hourly 		78º / 64º 22% NE 7 mph 64%
12am Showers 75º 42% NNW 5 mph 84%
1am Showers 74º 48% N 4 mph 86%
2am Showers 72º 47% N 5 mph 89%
3am Showers 71º 42% NNE 4 mph 89%
4am Cloudy 70º 24% NNE 4 mph 89%
5am Cloudy 69º 12% NNE 4 mph 86%
6am Mostly Cloudy 70º 14% NE 4 mph 85%
7am Mostly Cloudy 72º 9% NE 4 mph 80%
8am Mostly Cloudy 73º 4% NE 5 mph 74%
9am Mostly Cloudy 74º 22% NNE 6 mph 70%
10am Mostly Cloudy 75º 3% NNE 6 mph 67%
11am Mostly Cloudy 76º 2% NE 6 mph 63%
12pm Partly Cloudy 77º 1% NNE 6 mph 60%
1pm Partly Cloudy 77º 2% NE 6 mph 61%
2pm Mostly Cloudy 77º 1% NE 7 mph 60%
3pm Mostly Cloudy 78º 1% NE 6 mph 57%
4pm Mostly Cloudy 78º 1% NE 6 mph 58%
5pm Cloudy 77º 1% ENE 6 mph 59%
6pm Mostly Cloudy 76º 2% ENE 6 mph 60%
7pm Mostly Cloudy 74º 2% E 5 mph 63%
8pm Mostly Cloudy 73º 3% ESE 5 mph 65%
9pm Mostly Cloudy 71º 4% ESE 4 mph 72%
10pm Mostly Cloudy 70º 8% ESE 4 mph 75%
11pm Cloudy 69º 10% ESE 4 mph 77%
Mon
Jul 6 		Showers
View Hourly 		74º / 65º 37% ESE 10 mph 67%
12am Cloudy 68º 23% SE 4 mph 80%
1am Cloudy 67º 24% SE 4 mph 83%
2am Mostly Cloudy 66º 24% SE 3 mph 86%
3am Mostly Cloudy 66º 24% ESE 4 mph 87%
4am Cloudy 65º 24% ESE 4 mph 89%
5am Cloudy 65º 24% ESE 4 mph 88%
6am Cloudy 65º 24% ESE 4 mph 85%
7am Cloudy 67º 24% ESE 5 mph 80%
8am Cloudy 69º 24% E 7 mph 73%
9am Showers 71º 36% E 8 mph 68%
10am Showers 71º 35% E 9 mph 67%
11am Showers 72º 36% E 9 mph 64%
Tue
Jul 7 		Rain 71º / 63º 82% E 18 mph 83%
Wed
Jul 8 		AM Showers 72º / 64º 45% NNE 12 mph 82%
Thu
Jul 9 		Mostly Sunny 81º / 70º 7% WSW 13 mph 71%
Fri
Jul 10 		PM Showers 83º / 69º 53% SW 13 mph 74%
Sat
Jul 11 		Partly Cloudy 78º / 66º 24% N 11 mph 68%

Weather Radar for Barnstable Harbor, MA See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Barnstable Harbor, MA

Independence Day
High : 90ºF
WSW wind around 9 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
Tonight
Low : 69ºF
W wind 5 to 7 kt. A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Seas 1 ft or less.
Sunday
High : 79ºF
N wind 5 to 7 kt becoming ENE in the afternoon. Mostly sunny. Seas 1 ft or less.
Sunday Night
Low : 62ºF
Variable winds 5 kt or less. A slight chance of showers after midnight. Seas 1 ft or less.
Monday
High : 80ºF
SE wind 5 to 7 kt. Showers likely, mainly after 2pm. Seas 1 ft or less.
Monday Night
Low : 66ºF
ESE wind 5 to 7 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.
Tuesday
High : 78ºF
E wind 9 to 11 kt. Showers likely and possibly a thunderstorm before noon, then scattered showers and thunderstorms between noon and 2pm, then scattered showers after 2pm. Seas 1 ft or less.
Tuesday Night
Low : 61ºF
ENE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers. Seas 1 ft or less.
Wednesday
High : 76ºF
NE wind 6 to 8 kt. A chance of showers. Seas 1 ft or less.

NOAA Buoy Data Near Barnstable Harbor, MA See Map

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    Wind Speed Forecast for Barnstable Harbor, MA

    SaturdaySundayMonday
    Wind Speed (MPH) 594545665447
    4pm8pm12am4am8am12pm4pm8pm12am4am8am12pm
    MPH 594545665447
    DIR NWWWNWNNWNNENENNENEESESEESEE

    Current Weather Conditions In Barnstable Harbor, MA

    As Of: 12 minutes ago

    • 91ºF
    • 98ºF
    • 5mph
    • 0º (NW)
    • 5mph
    • Mostly Sunny
    • 10mi
    • 29.83"
    • 49%
    • 0ºF

    The weather right now in Barnstable Harbor, MA is Mostly Sunny. The current temperature is 91°F, and the expected high and low for today, Saturday, July 4, 2026, are 94° high temperature and 68°F low temperature. The wind is currently blowing at 5 miles per hour, and coming from the Northwest. The wind is gusting to 5 mph. With the wind and the atmosphere the temperature feels like 98° Fahrenheit. Expected precipitation is 6 percent, with current humidity at 49 percent, and air pressure at 29.83 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Heat Advisory - 2:22am Sat Jul 4 2026

    ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

    WHAT: Heat index values 95 to 98 degrees.

    WHERE: Barnstable MA and Dukes MA Counties.

    WHEN: Until 8 PM EDT this evening.

    IMPACTS: Hot temperatures and high humidity may cause heat
    illnesses.

    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.

    &&