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

Heavy Rain For Carolinas and Virginia; Severe In Texas; Heat Out West

An area of low pressure and a batch of tropical moisture will surge into parts of the Carolinas and Virginia. Heavy rain, strong thunderstorms and flooding is likely, regardless of any tropical development. Severe thunderstorms with all hazards are likely in central Texas, especially near Austin and San Antonio. Finally, the sweltering heat wave will continue the rest of the week across the West. Read More >

Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fog

61°F

16°C

Humidity 93%
Wind Speed SW 7 mph
Barometer 30.21 in (1023.0 mb)
Dewpoint 59°F (15°C)
Visibility 0.50 mi
Last update 27 May 2:56 am EDT
Extended Forecast for

South Dennis MA

Dense Fog Advisory until May 27, 08:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until May 27, 08:00am

    NOW until
    8:00am Wed

    Dense Fog Advisory

  • Overnight

    Overnight: Areas of dense fog. Otherwise, cloudy, with a low around 59. Southwest wind around 6 mph.

    Areas Dense
    Fog

    Low: 59 °F

  • Wednesday

    Wednesday: Areas of dense fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.

    Areas Dense
    Fog then
    Mostly Sunny

    High: 74 °F

  • Wednesday
    Night

    Wednesday Night: A chance of drizzle between 11pm and 3am, then a slight chance of showers after 3am. Areas of fog after 11pm. Otherwise, increasing clouds, with a low around 59. Southwest wind around 10 mph. Chance of precipitation is 20%.

    Chance
    Drizzle and
    Areas Fog

    Low: 59 °F

  • Thursday

    Thursday: A chance of drizzle with a slight chance of showers before 9am, then a slight chance of showers after 10am. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 73. Southwest wind 9 to 11 mph. Chance of precipitation is 20%.

    Chance
    Drizzle and
    Areas Fog

    High: 73 °F

  • Thursday
    Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 60. South wind 10 to 13 mph. Chance of precipitation is 40%.

    Chance
    Showers

    Low: 60 °F

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 68. South wind 14 to 16 mph. Chance of precipitation is 50%.

    Chance
    T-storms

    High: 68 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely, mainly after 11pm. Mostly cloudy, with a low around 60. Southwest wind around 16 mph. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 60 °F

  • Saturday

    Saturday: Showers and thunderstorms likely before 2pm, then a chance of showers. Mostly cloudy, with a high near 69. Southwest wind around 15 mph. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 69 °F

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, cloudy, with a low around 59. Southwest wind around 6 mph.
Wednesday
Areas of dense fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
A chance of drizzle between 11pm and 3am, then a slight chance of showers after 3am. Areas of fog after 11pm. Otherwise, increasing clouds, with a low around 59. Southwest wind around 10 mph. Chance of precipitation is 20%.
Thursday
A chance of drizzle with a slight chance of showers before 9am, then a slight chance of showers after 10am. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 73. Southwest wind 9 to 11 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 60. South wind 10 to 13 mph. Chance of precipitation is 40%.
Friday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 68. South wind 14 to 16 mph. Chance of precipitation is 50%.
Friday Night
Showers and thunderstorms likely, mainly after 11pm. Mostly cloudy, with a low around 60. Southwest wind around 16 mph. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely before 2pm, then a chance of showers. Mostly cloudy, with a high near 69. Southwest wind around 15 mph. Chance of precipitation is 60%.
Saturday Night
A chance of showers before 1am. Mostly cloudy, with a low around 56. Southwest wind around 10 mph becoming northwest after midnight. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 64. North wind around 10 mph.
Sunday Night
Mostly clear, with a low around 50. North wind 5 to 14 mph.
Monday
Sunny, with a high near 62. North wind 9 to 13 mph.
Monday Night
Mostly clear, with a low around 51. West wind 6 to 9 mph.
Tuesday
Sunny, with a high near 63. North wind 7 to 9 mph.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
South Dennis MA
 41.71°N 70.16°W (Elev. 49 ft)
Last Update:
10:13 pm EDT May 26, 2020
Forecast Valid:
3am EDT May 27, 2020-6pm EDT Jun 2, 2020
 
Forecast Discussion
 
Get as KML Get as XML

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