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

Chatham, Chatham Municipal Airport (KCQX)

Lat: 41.69°NLon: 69.99°WElev: 66ft.

Fair

20°C

68°F

Humidity 81%
Wind Speed E 13 km/h
Barometer 1020.6 mb (30.14 in)
Dewpoint 17°C (62°F)
Visibility 16 km
Last update 13 Jul 2:52 pm EDT
Extended Forecast for

Harwich Port MA

  • Tonight

    Tonight: Patchy fog before 9pm, then patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 19. Southeast wind 6 to 11 km/h becoming light east after midnight.

    Low: 19 °C

    Patchy Fog

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 26. East wind 5 to 13 km/h becoming south in the afternoon.

    High: 26 °C

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. Southwest wind around 10 km/h.

    Low: 21 °C

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. Southwest wind 10 to 16 km/h.

    High: 27 °C

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. Southwest wind around 11 km/h.

    Low: 22 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28. South wind 10 to 16 km/h.

    High: 28 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22. Southwest wind 11 to 13 km/h.

    Low: 22 °C

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 28. Southwest wind 14 to 21 km/h.

    High: 28 °C

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 3am. Mostly cloudy, with a low around 22. Southwest wind 14 to 16 km/h. Chance of precipitation is 30%.

    Low: 22 °C

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Patchy fog before 9pm, then patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 19. Southeast wind 6 to 11 km/h becoming light east after midnight.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 26. East wind 5 to 13 km/h becoming south in the afternoon.
Monday Night
Mostly cloudy, with a low around 21. Southwest wind around 10 km/h.
Tuesday
Partly sunny, with a high near 27. Southwest wind 10 to 16 km/h.
Tuesday Night
Partly cloudy, with a low around 22. Southwest wind around 11 km/h.
Wednesday
Mostly sunny, with a high near 28. South wind 10 to 16 km/h.
Wednesday Night
Mostly cloudy, with a low around 22. Southwest wind 11 to 13 km/h.
Thursday
Partly sunny, with a high near 28. Southwest wind 14 to 21 km/h.
Thursday Night
A chance of showers after 3am. Mostly cloudy, with a low around 22. Southwest wind 14 to 16 km/h. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 28. Southwest wind 14 to 18 km/h.
Friday Night
Partly cloudy, with a low around 21. Southwest wind around 11 km/h becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 27. North wind 11 to 16 km/h becoming east in the afternoon.
Saturday Night
Mostly cloudy, with a low around 21. South wind 8 to 10 km/h becoming southwest after midnight.
Sunday
Mostly sunny, with a high near 27. Southwest wind 10 to 14 km/h becoming south in the morning.
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 m)
Last Update:
6:25 am EDT Jul 13, 2025
Forecast Valid:
3pm EDT Jul 13, 2025-6pm EDT Jul 20, 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