Harwich Port, MA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Wed
Jun 17 		Mostly Sunny
Close Hourly 		70º / 59º 3% S 8 mph 68%
5am Partly Cloudy 63º 2% SSW 2 mph 77%
6am Partly Cloudy 63º 2% SSW 2 mph 79%
7am Partly Cloudy 66º 2% SSW 4 mph 76%
8am Cloudy 65º 2% SSW 4 mph 78%
9am Mostly Cloudy 67º 2% S 6 mph 75%
10am Partly Cloudy 68º 1% S 7 mph 71%
11am Mostly Sunny 68º 1% S 7 mph 69%
12pm Sunny 70º 2% S 8 mph 63%
1pm Mostly Sunny 70º 1% S 8 mph 60%
2pm Sunny 70º 1% S 8 mph 60%
3pm Sunny 69º 1% S 7 mph 59%
4pm Sunny 69º 1% S 8 mph 59%
5pm Sunny 69º 2% S 7 mph 59%
6pm Partly Cloudy 68º 4% S 7 mph 63%
7pm Sunny 66º 7% S 6 mph 72%
8pm Sunny 64º 5% S 6 mph 78%
9pm Mostly Clear 63º 6% S 4 mph 82%
10pm Partly Cloudy 62º 9% S 4 mph 86%
11pm Partly Cloudy 62º 15% S 4 mph 85%
Thu
Jun 18 		PM Showers/Wind
View Hourly 		70º / 66º 32% SSE 21 mph 84%
12am Partly Cloudy 62º 15% S 5 mph 87%
1am Partly Cloudy 61º 16% SSE 5 mph 89%
2am Partly Cloudy 61º 10% SSE 5 mph 91%
3am Partly Cloudy 61º 11% SSE 5 mph 92%
4am Cloudy 60º 12% SSE 5 mph 94%
5am Cloudy 60º 24% SSE 6 mph 94%
6am Cloudy 61º 19% SSE 7 mph 92%
7am Cloudy 63º 14% SSE 9 mph 85%
8am Cloudy 64º 17% SSE 10 mph 83%
9am Cloudy 65º 22% SSE 13 mph 84%
10am Cloudy 65º 21% SSE 14 mph 84%
11am Cloudy 66º 14% SSE 15 mph 84%
12pm Cloudy 67º 13% SSE 17 mph 80%
1pm Cloudy 67º 15% SSE 18 mph 80%
2pm Cloudy 69º 8% SSE 19 mph 80%
3pm Cloudy 70º 9% SSE 19 mph 81%
4pm Cloudy/Wind 69º 22% S 21 mph 86%
5pm Few Showers/Wind 70º 33% S 20 mph 88%
6pm Few Showers 70º 32% S 19 mph 90%
7pm Showers 69º 38% SSW 18 mph 91%
8pm Showers 69º 35% SSW 17 mph 91%
9pm Cloudy 69º 19% SW 15 mph 92%
10pm Mostly Cloudy 69º 11% SW 13 mph 91%
11pm Mostly Cloudy 69º 8% SW 12 mph 90%
Fri
Jun 19 		AM Clouds/PM Sun
View Hourly 		75º / 64º 4% SW 17 mph 64%
12am Mostly Cloudy 68º 12% WSW 11 mph 90%
1am Mostly Cloudy 69º 8% WSW 9 mph 87%
2am Mostly Cloudy 69º 11% WSW 8 mph 86%
3am Mostly Cloudy 69º 11% WSW 8 mph 84%
4am Mostly Cloudy 68º 13% WSW 7 mph 84%
Sat
Jun 20 		Mostly Sunny 77º / 63º 5% W 16 mph 53%
Sun
Jun 21 		Mostly Sunny 74º / 63º 24% W 9 mph 61%
Mon
Jun 22 		Rain 72º / 63º 65% SSE 13 mph 73%
Tue
Jun 23 		AM Showers 72º / 63º 57% WNW 13 mph 75%
Wed
Jun 24 		Partly Cloudy 74º / 63º 17% WSW 8 mph 66%

Weather Radar for Harwich Port, MA See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Harwich Port, MA

Wednesday
High : 75ºF
Variable winds less than 5 kt becoming SSE 5 to 8 kt in the morning. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.
Wednesday Night
Low : 62ºF
Variable winds 5 kt or less. Patchy fog after midnight. Seas 1 ft or less.
Thursday
High : 77ºF
S wind 8 to 11 kt increasing to 13 to 16 kt in the afternoon. Winds could gust as high as 29 kt. A slight chance of showers before 10am, then a slight chance of showers after 5pm. Patchy fog before 9am. Seas 1 ft or less.
Thursday Night
Low : 69ºF
SSW wind 12 to 15 kt becoming WSW 7 to 10 kt after midnight. Winds could gust as high as 25 kt. A chance of showers, mainly before 8pm. Patchy fog before 9pm. Seas 1 ft or less.
Juneteenth
High : 80ºF
SW wind 8 to 13 kt, with gusts as high as 23 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
Low : 68ºF
W wind 7 to 10 kt. Mostly clear. Seas 1 ft or less.
Saturday
High : 84ºF
WSW wind 10 to 13 kt, with gusts as high as 21 kt. Sunny. Seas 1 ft or less.
Saturday Night
Low : 67ºF
W wind around 9 kt. Mostly clear. Seas 1 ft or less.
Sunday
High : 80ºF
WNW wind around 9 kt becoming WSW in the afternoon. Sunny. Seas 1 ft or less.

NOAA Buoy Data Near Harwich Port, MA See Map

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    Wind Speed Forecast for Harwich Port, MA

    WednesdayThursdayFriday
    Wind Speed (MPH) 2687456131820159
    9am1pm5pm9pm1am5am9am1pm5pm9pm1am5am
    MPH 2687456131820159
    DIR SSWSSSSSSESSESSESSESSWWSW

    Current Weather Conditions In Harwich Port, MA

    As Of: 18 minutes ago

    • 63ºF
    • 63ºF
    • 2mph
    • 0º (SSW)
    • 2mph
    • Partly Cloudy
    • 10mi
    • 29.84"
    • 77%
    • 0ºF

    The weather right now in Harwich Port, MA is Partly Cloudy. The current temperature is 63°F, and the expected high and low for today, Wednesday, June 17, 2026, are 70° high temperature and 59°F low temperature. The wind is currently blowing at 2 miles per hour, and coming from the South Southwest. The wind is gusting to 2 mph. With the wind and the atmosphere the temperature feels like 63° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 77 percent, and air pressure at 29.84 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Small Craft Advisory - 3:18am Wed Jun 17 2026

    ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 1 AM EDT FRIDAY...

    WHAT: South winds 15 to 25 kt with gusts up to 30 kt and seas
    3 to 5 feet expected.

    WHERE: Nantucket Sound and Vineyard Sound.

    WHEN: From 11 AM Thursday to 1 AM EDT Friday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&