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Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

64°F

18°C

Humidity 58%
Wind Speed NE 14 G 24 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 19 Sep 12:56 am EDT
Extended Forecast for

South Dennis MA

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. North wind around 11 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. Northeast wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. Light east wind.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 4pm. Mostly cloudy, with a high near 67. Southeast wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers. Patchy fog before 9pm. Low around 56. Southeast wind 5 to 7 mph. Chance of precipitation is 90%.

    Low: 56 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Showers likely, mainly before 8am. Partly sunny, with a high near 66. Northeast wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 53. Northeast wind 9 to 13 mph.

    Low: 53 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 66. Northeast wind around 16 mph, with gusts as high as 28 mph.

    High: 66 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54. Northeast wind 14 to 16 mph, with gusts as high as 28 mph.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. North wind around 11 mph, with gusts as high as 24 mph.
Saturday
Mostly sunny, with a high near 64. Northeast wind 7 to 10 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 45. Light east wind.
Sunday
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 67. Southeast wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers. Patchy fog before 9pm. Low around 56. Southeast wind 5 to 7 mph. Chance of precipitation is 90%.
Monday
Showers likely, mainly before 8am. Partly sunny, with a high near 66. Northeast wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 53. Northeast wind 9 to 13 mph.
Tuesday
Mostly cloudy, with a high near 66. Northeast wind around 16 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 54. Northeast wind 14 to 16 mph, with gusts as high as 28 mph.
Wednesday
Partly sunny, with a high near 65. Northeast wind around 18 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly cloudy, with a low around 54. Northeast wind 16 to 18 mph, with gusts as high as 33 mph.
Thursday
A chance of showers. Partly sunny, with a high near 65. Breezy, with a northeast wind 18 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 54. Northeast wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 66. North wind around 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.71°N 70.16°W (Elev. 49 ft)
Last Update:
12:56 am EDT Sep 19, 2026
Forecast Valid:
1am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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