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.

Fog

44°F

7°C

Humidity 100%
Wind Speed Vrbl 6 mph
Barometer 30.04 in (1017.5 mb)
Dewpoint 44°F (7°C)
Visibility 0.50 mi
Wind Chill41°F (5°C)
Last update 18 Apr 5:52 pm EDT
Extended Forecast for

Northwest Harwich MA

  • Tonight

    Tonight: Patchy drizzle after 3am. Patchy fog after 7pm. Otherwise, cloudy, with a low around 43. Northeast wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Patchy Fog
    then Patchy
    Drizzle and
    Patchy Fog

  • Sunday

    Sunday: Showers before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers after 5pm. Patchy fog. High near 57. South wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 38. West wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51. West wind around 6 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 9pm. Mostly cloudy, with a low around 35. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46. North wind around 7 mph.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. Southwest wind 3 to 6 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers between 9am and 4pm. Mostly cloudy, with a high near 51. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.

    High: 51 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy drizzle after 3am. Patchy fog after 7pm. Otherwise, cloudy, with a low around 43. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Showers before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers after 5pm. Patchy fog. High near 57. South wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 38. West wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Mostly sunny, with a high near 51. West wind around 6 mph.
Monday Night
A slight chance of showers before 9pm. Mostly cloudy, with a low around 35. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 46. North wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 36. Southwest wind 3 to 6 mph.
Wednesday
A chance of showers between 9am and 4pm. Mostly cloudy, with a high near 51. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 41. Southwest wind around 5 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 54. Northwest wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 42. Light and variable wind becoming west around 5 mph in the evening.
Friday
Mostly sunny, with a high near 53. Northeast wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 41. Southeast wind around 5 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 53. Northeast wind 6 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Northwest Harwich MA
 41.7°N 70.1°W (Elev. 43 ft)
Last Update:
6:31 pm EDT Apr 18, 2026
Forecast Valid:
6pm EDT Apr 18, 2026-6pm EDT Apr 25, 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