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

30°F

-1°C

Humidity 69%
Wind Speed Calm
Barometer 30.40 in (1029.5 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 15 Mar 4:52 am EDT
Extended Forecast for

Harwich Port MA

High Wind Watch March 16, 05:00pm until March 17, 06:00am
Click here for hazard details and duration
High Wind Watch

  • Today

    Today: Increasing clouds, with a high near 42. Northwest wind 7 to 9 mph becoming southeast in the afternoon.

    High: 42 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of rain, mainly after 5am. Increasing clouds, with a low around 35. Southeast wind 10 to 17 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Partly Cloudy
    then Chance
    Rain

  • Monday

    Monday: Rain, with thunderstorms also possible after 9am. Patchy fog. High near 54. South wind around 18 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: Rain. Areas of fog before 9pm. Low around 36. Breezy, with a south wind 18 to 25 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Rain and
    Areas Fog

  • Tuesday

    Tuesday: Rain likely, mainly before 8am. Partly sunny, with a high near 44. Southwest wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.

    High: 44 °F

    Rain Likely
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. West wind 11 to 14 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 35. Northwest wind 5 to 9 mph.

    High: 35 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27. South wind around 5 mph.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40. South wind 6 to 9 mph.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 42. Northwest wind 7 to 9 mph becoming southeast in the afternoon.
Tonight
A chance of rain, mainly after 5am. Increasing clouds, with a low around 35. Southeast wind 10 to 17 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, with thunderstorms also possible after 9am. Patchy fog. High near 54. South wind around 18 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain. Areas of fog before 9pm. Low around 36. Breezy, with a south wind 18 to 25 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain likely, mainly before 8am. Partly sunny, with a high near 44. Southwest wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 23. West wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 35. Northwest wind 5 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 27. South wind around 5 mph.
Thursday
Partly sunny, with a high near 40. South wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 32. Southeast wind around 6 mph.
Friday
Mostly sunny, with a high near 42. North wind 6 to 8 mph becoming south in the afternoon.
Friday Night
Partly cloudy, with a low around 33. South wind around 8 mph.
Saturday
A chance of rain. Mostly cloudy, with a high near 44. South wind 10 to 13 mph. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harwich Port MA
 41.67°N 70.08°W (Elev. 10 ft)
Last Update:
1:06 am EDT Mar 15, 2026
Forecast Valid:
5am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
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