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.

Fair

67°F

19°C

Humidity 66%
Wind Speed NE 9 mph
Barometer 30.27 in (1025.0 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 19 Aug 9:52 am EDT
Extended Forecast for

East Harwich MA

High Surf Advisory until August 21, 08:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory until August 21, 08:00pm

    NOW until 8:00pm Thu

    High Surf Advisory

  • Today

    High: 74 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southeast wind 3 to 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 1pm. Partly sunny, with a high near 75. East wind 6 to 10 mph. Chance of precipitation is 20%.

    High: 75 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 60. East wind around 8 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 60 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers. Partly sunny, with a high near 75. East wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61. Northeast wind 14 to 17 mph.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 75. Northeast wind 16 to 18 mph, with gusts as high as 31 mph.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Northeast wind around 11 mph, with gusts as high as 21 mph.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 74. East wind around 9 mph.
Tonight
Partly cloudy, with a low around 59. Southeast wind 3 to 6 mph.
Wednesday
A slight chance of showers after 1pm. Partly sunny, with a high near 75. East wind 6 to 10 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. East wind around 8 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A slight chance of showers. Partly sunny, with a high near 75. East wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 61. Northeast wind 14 to 17 mph.
Friday
Mostly sunny, with a high near 75. Northeast wind 16 to 18 mph, with gusts as high as 31 mph.
Friday Night
Partly cloudy, with a low around 61. Northeast wind around 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 77. North wind 10 to 13 mph becoming southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 63. Southwest wind 8 to 10 mph.
Sunday
Mostly sunny, with a high near 78. South wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 64. South wind 8 to 10 mph. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 79. South wind 8 to 10 mph. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East Harwich MA
 41.69°N 70.04°W (Elev. 52 ft)
Last Update:
6:49 am EDT Aug 19, 2025
Forecast Valid:
10am EDT Aug 19, 2025-6pm EDT Aug 25, 2025
 
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