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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

39°F

4°C

Humidity 62%
Wind Speed SW 3 mph
Barometer 29.61 in (1002.7 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 15 Nov 4:56 pm EST
Extended Forecast for

Dennis MA

  • Tonight

    Tonight: Rain, mainly before 5am. Patchy fog after 11pm. Temperature falling to near 41 by 8pm, then rising to around 52 during the remainder of the night. South wind 7 to 17 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F⇑

    Rain and
    Patchy Fog

  • Sunday

    Sunday: A chance of rain between 7am and noon. Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 57. Breezy, with a west wind 14 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.

    High: 57 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: A slight chance of rain before 10pm, then a slight chance of rain and snow between 10pm and 1am, then a slight chance of snow after 1am. Partly cloudy, with a low around 34. Breezy, with a west wind around 24 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 44. Breezy, with a west wind 21 to 23 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 34. Breezy, with a west wind 17 to 21 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 47. West wind 15 to 18 mph.

    High: 47 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. West wind 9 to 13 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. West wind 7 to 9 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37. Northwest wind around 7 mph.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain, mainly before 5am. Patchy fog after 11pm. Temperature falling to near 41 by 8pm, then rising to around 52 during the remainder of the night. South wind 7 to 17 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A chance of rain between 7am and noon. Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 57. Breezy, with a west wind 14 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Sunday Night
A slight chance of rain before 10pm, then a slight chance of rain and snow between 10pm and 1am, then a slight chance of snow after 1am. Partly cloudy, with a low around 34. Breezy, with a west wind around 24 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 44. Breezy, with a west wind 21 to 23 mph.
Monday Night
Mostly clear, with a low around 34. Breezy, with a west wind 17 to 21 mph.
Tuesday
Sunny, with a high near 47. West wind 15 to 18 mph.
Tuesday Night
Partly cloudy, with a low around 36. West wind 9 to 13 mph.
Wednesday
Mostly sunny, with a high near 47. West wind 7 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 37. Northwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 47. Northwest wind 6 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 38. East wind 5 to 7 mph becoming southwest after midnight.
Friday
A chance of rain. Mostly cloudy, with a high near 53. South wind 8 to 13 mph. Chance of precipitation is 50%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 44. Southwest wind 11 to 14 mph. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 56. Southwest wind around 15 mph. Chance of precipitation is 50%.
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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:
2:56 pm EST Nov 15, 2025
Forecast Valid:
5pm EST Nov 15, 2025-6pm EST Nov 22, 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