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

Tracking Atmospheric River for California; Record Temperatures Further East

An atmospheric river will bring gusty to high winds, moderate to heavy rainfall, and potential flooding to California today through Saturday. Heavy snow will be possible over the Sierra Nevada mountains into Friday associated with this atmospheric river. East of these impacts dozens of record high maximum and high minimum temperatures may be broken or tied today and Friday. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Rain

43°F

6°C

Humidity 82%
Wind Speed NW 8 G 21 mph
Barometer 29.79 in (1008.9 mb)
Dewpoint 38°F (3°C)
Visibility 6.00 mi
Wind Chill38°F (3°C)
Last update 13 Nov 5:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: A slight chance of rain before 3am, then a slight chance of snow. Mostly cloudy, with a low around 36. Northwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of snow before 7am, then a slight chance of rain between 7am and noon. Partly sunny, with a high near 46. Northwest wind 11 to 14 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: A slight chance of rain before 11pm. Partly cloudy, with a low around 32. Northwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50. Northwest wind 8 to 10 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Rain, mainly after midnight. Low around 38. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 38 °F

    Chance Rain
    then Rain

  • Sunday

    Sunday: Rain, mainly before 1pm. High near 57. West wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    High: 57 °F

    Rain

  • Sunday Night

    Sunday Night: A chance of rain before 4am. Mostly cloudy, with a low around 34. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 47. West wind around 16 mph, with gusts as high as 29 mph.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. West wind 10 to 14 mph, with gusts as high as 29 mph.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of rain before 3am, then a slight chance of snow. Mostly cloudy, with a low around 36. Northwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Friday
A slight chance of snow before 7am, then a slight chance of rain between 7am and noon. Partly sunny, with a high near 46. Northwest wind 11 to 14 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 32. Northwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 50. Northwest wind 8 to 10 mph.
Saturday Night
Rain, mainly after midnight. Low around 38. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Sunday
Rain, mainly before 1pm. High near 57. West wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Sunday Night
A chance of rain before 4am. Mostly cloudy, with a low around 34. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 47. West wind around 16 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 33. West wind 10 to 14 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 48. West wind around 11 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 34. Northwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 48. Northwest wind 7 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 35. Northwest wind around 6 mph.
Thursday
Partly sunny, with a high near 51. Northwest wind 5 to 9 mph becoming southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
5:52 pm EST Nov 13, 2025
Forecast Valid:
6pm EST Nov 13, 2025-6pm EST Nov 20, 2025
 
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