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.

Thunderstorm

63°F

17°C

Humidity 97%
Wind Speed SW 7 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 14 Oct 12:52 am EDT
Extended Forecast for

West Harwich MA

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 60. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Patchy fog between 7am and 10am. Otherwise, mostly sunny, with a high near 73. Southwest wind around 11 mph, with gusts as high as 23 mph.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 58. North wind 10 to 13 mph.

    High: 58 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. Calm wind becoming southeast around 6 mph after midnight.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Showers, with thunderstorms also possible after 5pm. High near 68. South wind 11 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.

    High: 68 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 45. Breezy, with a west wind 22 to 24 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: A chance of showers before 9am. Mostly sunny, with a high near 53. Breezy, with a northwest wind 22 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.

    High: 53 °F

    Breezy.
    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Breezy, with a northwest wind 15 to 21 mph, with gusts as high as 31 mph.

    Low: 38 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 60. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Patchy fog between 7am and 10am. Otherwise, mostly sunny, with a high near 73. Southwest wind around 11 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 50. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 58. North wind 10 to 13 mph.
Thursday Night
Partly cloudy, with a low around 46. Calm wind becoming southeast around 6 mph after midnight.
Friday
Showers, with thunderstorms also possible after 5pm. High near 68. South wind 11 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
Friday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 45. Breezy, with a west wind 22 to 24 mph. Chance of precipitation is 70%.
Saturday
A chance of showers before 9am. Mostly sunny, with a high near 53. Breezy, with a northwest wind 22 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 38. Breezy, with a northwest wind 15 to 21 mph, with gusts as high as 31 mph.
Sunday
Sunny, with a high near 55. West wind around 14 mph.
Sunday Night
Mostly clear, with a low around 45. Southwest wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 61. Southwest wind 8 to 15 mph.
Monday Night
Partly cloudy, with a low around 50. Southwest wind 8 to 11 mph.
Tuesday
Mostly sunny, with a high near 62. West wind around 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
West Harwich MA
 41.68°N 70.11°W (Elev. 10 ft)
Last Update:
11:55 pm EDT Oct 13, 2026
Forecast Valid:
1am EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
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