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

Hazardous Weather Conditions

Current conditions at

Chatham, Chatham Municipal Airport (KCQX)

Lat: 41.69°NLon: 69.99°WElev: 66ft.

Heavy Rain Fog/Mist

64°F

18°C

Humidity 93%
Wind Speed NE 10 G 30 mph
Barometer 29.90 in (1012.7 mb)
Dewpoint 62°F (17°C)
Visibility 1.25 mi
Last update 20 Sep 1:52 pm EDT
Extended Forecast for

Harwich Port MA

High Surf Advisory until September 20, 07:00pm
Coastal Flood Advisory until September 20, 06:00pm
Coastal Flood Advisory September 20, 11:00pm until September 21, 05:00am
Coastal Flood Advisory September 21, 11:00am until September 21, 05:00pm
Click here for hazard details and duration
High Surf Advisory
Coastal Flood Advisory
Coastal Flood Advisory
Coastal Flood Advisory
  •  
    High Surf Advisory until September 20, 07:00pm
    Coastal Flood Advisory until September 20, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 66 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: Showers. The rain could be heavy at times. Patchy fog. Low around 58. Breezy, with a northeast wind around 24 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 58 °F

    Heavy Rain
    and Patchy
    Fog

  • Saturday

    Saturday: Showers likely, mainly before 2pm. Patchy fog between noon and 1pm. Otherwise, cloudy, with a high near 67. Breezy, with a northeast wind 18 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 67 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday Night

    Saturday Night: A chance of showers, mainly before midnight. Patchy fog before 11pm. Otherwise, cloudy, with a low around 57. Northeast wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers, mainly between 9am and 3pm. Mostly cloudy, with a high near 68. Northeast wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. Northeast wind around 15 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 68. Northeast wind around 15 mph.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55. Northeast wind 10 to 13 mph.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Showers. Patchy fog. High near 66. Breezy, with a northeast wind around 22 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Showers. The rain could be heavy at times. Patchy fog. Low around 58. Breezy, with a northeast wind around 24 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Showers likely, mainly before 2pm. Patchy fog between noon and 1pm. Otherwise, cloudy, with a high near 67. Breezy, with a northeast wind 18 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
A chance of showers, mainly before midnight. Patchy fog before 11pm. Otherwise, cloudy, with a low around 57. Northeast wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A chance of showers, mainly between 9am and 3pm. Mostly cloudy, with a high near 68. Northeast wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 56. Northeast wind around 15 mph.
Monday
Partly sunny, with a high near 68. Northeast wind around 15 mph.
Monday Night
Mostly cloudy, with a low around 55. Northeast wind 10 to 13 mph.
Tuesday
Mostly cloudy, with a high near 68. East wind 11 to 13 mph.
Tuesday Night
Mostly cloudy, with a low around 56. East wind around 10 mph.
Wednesday
Mostly cloudy, with a high near 69. East wind 10 to 13 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 57. East wind around 10 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly cloudy, with a high near 70. Southeast wind 11 to 13 mph. Chance of precipitation is 40%.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Harwich Port MA
 41.67°N 70.08°W (Elev. 10 ft)
Last Update:
12:11 pm EDT Sep 20, 2024
Forecast Valid:
2pm EDT Sep 20, 2024-6pm EDT Sep 26, 2024
 
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