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.

Overcast

61°F

16°C

Humidity 67%
Wind Speed SE 3 mph
Barometer 30.18 in (1021.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 26 Jun 10:52 pm EDT
Extended Forecast for

Harwich Port MA

  • Tonight

    Tonight: A slight chance of showers before 3am. Cloudy, with a low around 61. East wind around 7 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 69. East wind 8 to 10 mph.

    High: 69 °F

    Gradual
    Clearing

  • Friday Night

    Friday Night: A chance of showers, mainly after 3am. Mostly cloudy, with a low around 61. Southeast wind around 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before 1pm, then patchy fog after 2pm. Otherwise, mostly cloudy, with a high near 71. South wind around 11 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 65. South wind around 8 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers, mainly before 10am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 74. West wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 64. North wind 5 to 7 mph.

    Low: 64 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 75. Northeast wind 5 to 9 mph becoming south in the afternoon.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 66. Southwest wind around 8 mph.

    Low: 66 °F

    Patchy Fog

Detailed Forecast

Tonight
A slight chance of showers before 3am. Cloudy, with a low around 61. East wind around 7 mph. Chance of precipitation is 20%.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 69. East wind 8 to 10 mph.
Friday Night
A chance of showers, mainly after 3am. Mostly cloudy, with a low around 61. Southeast wind around 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before 1pm, then patchy fog after 2pm. Otherwise, mostly cloudy, with a high near 71. South wind around 11 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 65. South wind around 8 mph. Chance of precipitation is 40%.
Sunday
A chance of showers, mainly before 10am. Patchy fog before 11am. Otherwise, partly sunny, with a high near 74. West wind 8 to 10 mph. Chance of precipitation is 30%.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 64. North wind 5 to 7 mph.
Monday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 75. Northeast wind 5 to 9 mph becoming south in the afternoon.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 66. Southwest wind around 8 mph.
Tuesday
A chance of showers after noon. Partly sunny, with a high near 79. Southwest wind 9 to 14 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 68. Southwest wind around 11 mph. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 81. Southwest wind 8 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 68. Southwest wind 6 to 9 mph.
Thursday
Sunny, with a high near 79. West wind 6 to 9 mph becoming southwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Harwich Port MA
 41.67°N 70.08°W (Elev. 10 ft)
Last Update:
6:39 pm EDT Jun 26, 2025
Forecast Valid:
11pm EDT Jun 26, 2025-6pm EDT Jul 3, 2025
 
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