National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

A Few Clouds

61°F

16°C

Humidity 93%
Wind Speed NW 3 mph
Barometer 29.76 in (1008.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Jun 12:56 am EDT
Extended Forecast for

Dennis MA

  • Overnight

    Overnight: Mostly clear, with a low around 63. West wind around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. Southwest wind 5 to 8 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65. Southwest wind around 6 mph becoming calm after midnight.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers, mainly after 3pm. Increasing clouds, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 11pm, then showers between 11pm and 2am, then showers and possibly a thunderstorm after 2am. Low around 67. South wind 8 to 15 mph. Chance of precipitation is 90%.

    Low: 67 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. High near 81. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 7pm. Partly cloudy, with a low around 65. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 78. Northwest wind around 5 mph becoming east in the afternoon.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. South wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 63. West wind around 5 mph.
Sunday
Sunny, with a high near 78. Southwest wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 65. Southwest wind around 6 mph becoming calm after midnight.
Monday
A chance of showers, mainly after 3pm. Increasing clouds, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers and thunderstorms likely before 11pm, then showers between 11pm and 2am, then showers and possibly a thunderstorm after 2am. Low around 67. South wind 8 to 15 mph. Chance of precipitation is 90%.
Tuesday
Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. High near 81. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 80%.
Tuesday Night
A chance of showers before 7pm. Partly cloudy, with a low around 65. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 78. Northwest wind around 5 mph becoming east in the afternoon.
Wednesday Night
Mostly clear, with a low around 67. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79. South wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 67. South wind around 7 mph.
Friday
Partly sunny, with a high near 80. South wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 68. Southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 82. Southwest wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis MA
 41.74°N 70.21°W (Elev. 30 ft)
Last Update:
10:11 pm EDT Jun 20, 2026
Forecast Valid:
1am EDT Jun 21, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation