Hyannis, Massachusetts Weather
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Click for Dense Fog Advisory for Hyannis, Massachusetts
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Weather Forecast for Hyannis, Massachusetts : Barnstable County
Issued: 4:44 am EDT Jul 1, 2025 Latitude: 41.6528887 Longitude: -70.2827989 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Independence Day Saturday Sunday Monday
30% chance of thunderstorms on Overnight 40% chance of thunderstorms on Tuesday 50% chance of thunderstorms on Wednesday Mostly Sunny on Thursday Sunny on Independence Day Sunny on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday
Low: 67°F High: 80°F High: 80°F High: 82°F High: 80°F High: 81°F High: 83°F High: 83°F
Low: 69°F Low: 67°F Low: 66°F Low: 65°F Low: 67°F Low: 70°F  
Thunderstorms Thunderstorms Thunderstorms Mostly Sunny Sunny Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
HYANNIS - (KHYA)
70°
Clear
Mist
as of 4:29 AM EDST
Rel. Humidity: 100%
Dew Point: 70°F
Visibility: 1 Miles
Pressure: 29.88 in.
Flight Rule: IFR
Wind Data
5 MPH
180° South
Current Conditions at
COAST GUARD AIR STA - (KFMH)
70°
Cloudy
Fog
as of 3:56 AM EDST
Rel. Humidity: 94%
Dew Point: 68°F
Visibility: 1/2 Miles
Pressure: 29.92 in.
Flight Rule: LIFR
Wind Data
6 MPH
190° South
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
CHATHAM - (KCQX)
68°
Clear
Mist
as of 3:52 AM EDST
Rel. Humidity: 100%
Dew Point: 68°F
Visibility: 3/4 Miles
Pressure: 29.92 in.
Flight Rule: MVFR
Wind Data
8 MPH
Gust: 17 MPH
210° Southwest
Current Conditions at
MARTHAS VINEYARD - (KMVY)
70°
Clear
Fog
as of 3:53 AM EDST
Rel. Humidity: 100%
Dew Point: 70°F
Visibility: 1/4 Miles
Pressure: 29.91 in.
Flight Rule: IFR
Wind Data
9 MPH
200° South
30% chance of thunderstorms Overnight Overnight... A chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a low around 67. South wind around 7 mph. Chance of precipitation is 30%.
40% chance of thunderstorms Tuesday Tuesday... A chance of showers and thunderstorms, mainly before 10am. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 80. Southwest wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
70% chance of thunderstorms Tuesday Night Tuesday Night... Rain likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 4am, then showers likely and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind 8 to 13 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
50% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Southwest wind 6 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
20% chance of rain Wednesday Night Wednesday Night... A slight chance of showers before 1am. Mostly cloudy, with a low around 67. Southwest wind around 7 mph. Chance of precipitation is 20%.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 82. West wind 6 to 9 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 66. West wind around 7 mph.
Sunny on Independence Day Independence Day... Sunny, with a high near 80. Northwest wind around 8 mph becoming southwest in the afternoon.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 65. Southwest wind around 5 mph becoming light and variable in the evening.
Sunny on Saturday Saturday... Sunny, with a high near 81. Northwest wind 5 to 8 mph becoming south in the afternoon.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 67. Southwest wind around 7 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 83. Southwest wind 9 to 14 mph.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 70. Southwest wind around 11 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 83. Southwest wind 10 to 13 mph.
Current Radar Image


Sun Almanac for Hyannis, Massachusetts
Sunrise: 05:11 AM
Sunset: 8:19 PM
Civil Sunrise:04:37 AM
Civil Sunset: 8:53 PM
Nautical Sunrise: 03:53 AM
Nautical Sunset: 9:37 PM
Astro Sunrise: 03:02 AM
Astro Sunset: 10:29 PM
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