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

72°F

22°C

Humidity 94%
Wind Speed Vrbl 6 mph
Barometer 30.06 in (1018.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 15 Jul 3:52 am EDT
Extended Forecast for

Dennis Port MA

  • Overnight

    Overnight: A slight chance of showers, then a chance of showers and thunderstorms after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly before 8am. Patchy fog before 9am, then patchy fog after 5pm. Otherwise, partly sunny, with a high near 81. Southwest wind 6 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog before 8pm, then patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 70. Southwest wind around 7 mph.

    Low: 70 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. South wind 6 to 10 mph.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 71. Southwest wind around 8 mph.

    Low: 71 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly cloudy, with a high near 82. Southwest wind 9 to 14 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72. Southwest wind 9 to 11 mph.

    Low: 72 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. West wind 8 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 68. North wind around 6 mph.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of showers, then a chance of showers and thunderstorms after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, mainly before 8am. Patchy fog before 9am, then patchy fog after 5pm. Otherwise, partly sunny, with a high near 81. Southwest wind 6 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Patchy fog before 8pm, then patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 70. Southwest wind around 7 mph.
Wednesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 82. South wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 71. Southwest wind around 8 mph.
Thursday
A slight chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly cloudy, with a high near 82. Southwest wind 9 to 14 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 72. Southwest wind 9 to 11 mph.
Friday
Mostly sunny, with a high near 84. West wind 8 to 10 mph.
Friday Night
Mostly cloudy, with a low around 68. North wind around 6 mph.
Saturday
Sunny, with a high near 79. Northeast wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 67. Southeast wind around 5 mph becoming light and variable in the evening.
Sunday
Partly sunny, with a high near 80. South wind 5 to 10 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. South wind around 8 mph. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly sunny, with a high near 80. West wind around 9 mph becoming south in the afternoon. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis Port MA
 41.66°N 70.14°W (Elev. 13 ft)
Last Update:
1:16 am EDT Jul 15, 2025
Forecast Valid:
4am EDT Jul 15, 2025-6pm EDT Jul 21, 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