Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

60°F

16°C

Humidity 60%
Wind Speed SE 8 mph
Barometer 30.37 in (1028.6 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 11 Oct 11:56 am EDT
Extended Forecast for

East Dennis MA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 62. South wind around 9 mph.

    High: 62 °F

    Cloudy

  • Tonight

    Tonight: Showers, mainly before 4am.  Patchy fog. Low around 53. East wind 7 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 53 °F

    Showers and
    Patchy Fog

  • Columbus Day

    Columbus Day: A chance of showers, mainly before 7am.  Patchy fog before 11am.  Otherwise, mostly cloudy, with a high near 63. Northeast wind 10 to 13 mph.  Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Increasing clouds, with a low around 51. Calm wind becoming northeast 5 to 7 mph after midnight.

    Low: 51 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. Southeast wind around 9 mph.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after 2am.  Mostly cloudy, with a low around 55. Southwest wind 9 to 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 9am.  Mostly sunny, with a high near 68. Southwest wind 11 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 59. Northwest wind 13 to 15 mph.

    High: 59 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 62. South wind around 9 mph.
Tonight
Showers, mainly before 4am. Patchy fog. Low around 53. East wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Columbus Day
A chance of showers, mainly before 7am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 63. Northeast wind 10 to 13 mph. Chance of precipitation is 30%.
Monday Night
Increasing clouds, with a low around 51. Calm wind becoming northeast 5 to 7 mph after midnight.
Tuesday
Mostly cloudy, with a high near 65. Southeast wind around 9 mph.
Tuesday Night
A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 55. Southwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers before 9am. Mostly sunny, with a high near 68. Southwest wind 11 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 47. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 59. Northwest wind 13 to 15 mph.
Thursday Night
Partly cloudy, with a low around 47. North wind around 8 mph.
Friday
A chance of showers. Partly sunny, with a high near 63. South wind 8 to 13 mph. Chance of precipitation is 40%.
Friday Night
Showers likely. Mostly cloudy, with a low around 49. South wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 60. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
East Dennis MA
 41.73°N 70.15°W (Elev. 62 ft)
8:57 am EDT Oct 11, 2026
12pm EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
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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