Weather Forecast for Martha's Vineyard
Massachusetts, United States of America
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Current Weather - Martha's Vineyard: 21°C
Current Weather - Martha's Vineyard: 21°C
Massachusetts, United States of America
Sunny
Feels like 21°C
Wind
39 km/h WSW
Humidity
78%
Pressure
1017 mb
UV Index
0
Visibility
16 km
Sunny
Tuesday, July 14, 2026
High
30°C
Low
19°C
Rain Chance
7%
Hourly Forecast
29°C
30°C
30°C
29°C
28°C
27°C
28°C
23°C
23°C
23°C
23°C
23°C
Day Statistics
Maximum Wind
49 km/h
Humidity
73%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
7%
Snow Chance
0%
Sun & Moon
Sunrise
05:21 AM
Sunset
08:15 PM
Moonrise
04:51 AM
Moonset
08:40 PM
Moon Phase
New Moon
Moon Illumination
1%
Air Quality
PM2.5
14.7
μg/m³
PM10
20.8
μg/m³
NO₂
1.7
μg/m³
O₃
98.4
μg/m³
SO₂
0.5
μg/m³
CO
140.8
μg/m³
Sunny
Wednesday, July 15, 2026
High
28°C
Low
23°C
Rain Chance
47%
Hourly Forecast
23°C
23°C
23°C
23°C
23°C
23°C
24°C
24°C
24°C
25°C
26°C
26°C
26°C
26°C
26°C
27°C
28°C
27°C
25°C
24°C
24°C
24°C
23°C
23°C
Day Statistics
Maximum Wind
43 km/h
Humidity
79%
Precipitation
1 mm
UV Index
9
Visibility
10 km
Rain Chance
47%
Snow Chance
0%
Sun & Moon
Sunrise
05:21 AM
Sunset
08:14 PM
Moonrise
06:14 AM
Moonset
09:18 PM
Moon Phase
New Moon
Moon Illumination
3%
Air Quality
PM2.5
15.9
μg/m³
PM10
21.1
μg/m³
NO₂
3.6
μg/m³
O₃
139
μg/m³
SO₂
0.7
μg/m³
CO
151.5
μg/m³
Partly Cloudy
Thursday, July 16, 2026
High
26°C
Low
22°C
Rain Chance
36%
Hourly Forecast
23°C
23°C
23°C
22°C
22°C
22°C
22°C
23°C
23°C
23°C
23°C
23°C
24°C
24°C
24°C
25°C
25°C
25°C
25°C
25°C
25°C
26°C
25°C
25°C
Day Statistics
Maximum Wind
32 km/h
Humidity
72%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
36%
Snow Chance
0%
Sun & Moon
Sunrise
05:22 AM
Sunset
08:13 PM
Moonrise
07:37 AM
Moonset
09:48 PM
Moon Phase
Waxing Crescent
Moon Illumination
8%
Air Quality
PM2.5
15.5
μg/m³
PM10
21.1
μg/m³
NO₂
3.4
μg/m³
O₃
113.5
μg/m³
SO₂
0.7
μg/m³
CO
150.3
μg/m³
Sunny
Friday, July 17, 2026
High
24°C
Low
20°C
Rain Chance
5%
Hourly Forecast
24°C
23°C
23°C
22°C
21°C
21°C
20°C
20°C
20°C
21°C
21°C
22°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
22°C
22°C
22°C
Day Statistics
Maximum Wind
21 km/h
Humidity
62%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
5%
Snow Chance
0%
Sun & Moon
Sunrise
05:23 AM
Sunset
08:13 PM
Moonrise
08:56 AM
Moonset
10:14 PM
Moon Phase
Waxing Crescent
Moon Illumination
15%
Air Quality
PM2.5
9.5
μg/m³
PM10
13.2
μg/m³
NO₂
2.7
μg/m³
O₃
91.2
μg/m³
SO₂
0.5
μg/m³
CO
138.3
μg/m³
Partly Cloudy
Saturday, July 18, 2026
High
23°C
Low
21°C
Rain Chance
57%
Hourly Forecast
22°C
22°C
21°C
22°C
22°C
21°C
22°C
22°C
22°C
23°C
23°C
22°C
23°C
23°C
22°C
22°C
21°C
21°C
21°C
22°C
22°C
22°C
22°C
22°C
Day Statistics
Maximum Wind
31 km/h
Humidity
77%
Precipitation
2 mm
UV Index
6
Visibility
9 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
05:24 AM
Sunset
08:12 PM
Moonrise
10:12 AM
Moonset
10:37 PM
Moon Phase
Waxing Crescent
Moon Illumination
23%
Air Quality
PM2.5
14
μg/m³
PM10
21.6
μg/m³
NO₂
0.7
μg/m³
O₃
93.7
μg/m³
SO₂
0.7
μg/m³
CO
148.6
μg/m³
Patchy rain nearby
Sunday, July 19, 2026
High
23°C
Low
20°C
Rain Chance
88%
Hourly Forecast
22°C
22°C
22°C
22°C
21°C
21°C
21°C
22°C
22°C
22°C
22°C
23°C
23°C
22°C
22°C
21°C
21°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
Day Statistics
Maximum Wind
40 km/h
Humidity
88%
Precipitation
13 mm
UV Index
6
Visibility
9 km
Rain Chance
88%
Snow Chance
0%
Sun & Moon
Sunrise
05:25 AM
Sunset
08:11 PM
Moonrise
11:25 AM
Moonset
11:00 PM
Moon Phase
First Quarter
Moon Illumination
33%
Sunny
Monday, July 20, 2026
High
22°C
Low
19°C
Rain Chance
7%
Hourly Forecast
20°C
20°C
20°C
19°C
19°C
19°C
19°C
19°C
19°C
20°C
20°C
21°C
21°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
21°C
21°C
21°C
20°C
Day Statistics
Maximum Wind
17 km/h
Humidity
71%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
7%
Snow Chance
0%
Sun & Moon
Sunrise
05:26 AM
Sunset
08:11 PM
Moonrise
12:36 PM
Moonset
11:24 PM
Moon Phase
First Quarter
Moon Illumination
43%
Solar Radiation Data
Shortwave Radiation
2.84
Diffuse Radiation
1.34
DNI
0
GTI
0
Weather Alerts
Small Craft Advisory issued July 13 at 3:27PM EDT until July 15 at 11:00AM EDT by NWS Boston/Norton MA
* WHAT...Southwest winds 15 to 25 kt with gusts up to 34 kt and seas 5 to 8 feet expected. Brief gales are possible for southern and eastern outer water zones late afternoon through Tuesday night. * WHERE...Portions of Massachusetts coastal waters and Rhode Island coastal waters. * WHEN...From noon Tuesday to 11 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Small Craft Advisory issued July 13 at 11:55PM EDT until July 15 at 8:00PM EDT by NWS Boston/Norton MA
* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 6 feet expected. * WHERE...In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound. * WHEN...From noon Tuesday to 8 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
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