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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Chatham, Chatham Municipal Airport (KCQX)

Lat: 41.69°NLon: 69.99°WElev: 66ft.

Fair

44°F

7°C

Humidity 51%
Wind Speed SW 7 mph
Barometer 29.67 in (1005.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 15 Nov 1:52 pm EST
Extended Forecast for

East Harwich MA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 49. West wind around 9 mph.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Rain, mainly after 9pm. Patchy fog after 11pm. Temperature falling to near 40 by 8pm, then rising to around 50 during the remainder of the night. Southwest wind 6 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F⇑

    Rain and
    Patchy Fog

  • Sunday

    Sunday: A chance of rain between 7am and noon. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 57. West wind 11 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.

    High: 57 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain and snow before midnight, then a slight chance of snow between midnight and 3am, then a slight chance of rain after 3am. Partly cloudy, with a low around 32. West wind 16 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain/Snow

  • Monday

    Monday: Mostly sunny, with a high near 45. West wind 16 to 18 mph, with gusts as high as 33 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. West wind 13 to 16 mph, with gusts as high as 29 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 47. West wind 11 to 13 mph, with gusts as high as 24 mph.

    High: 47 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. West wind 6 to 10 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Northwest wind 6 to 9 mph.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 49. West wind around 9 mph.
Tonight
Rain, mainly after 9pm. Patchy fog after 11pm. Temperature falling to near 40 by 8pm, then rising to around 50 during the remainder of the night. Southwest wind 6 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
A chance of rain between 7am and noon. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 57. West wind 11 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.
Sunday Night
A slight chance of rain and snow before midnight, then a slight chance of snow between midnight and 3am, then a slight chance of rain after 3am. Partly cloudy, with a low around 32. West wind 16 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 45. West wind 16 to 18 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 33. West wind 13 to 16 mph, with gusts as high as 29 mph.
Tuesday
Sunny, with a high near 47. West wind 11 to 13 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 34. West wind 6 to 10 mph.
Wednesday
Mostly sunny, with a high near 47. Northwest wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 36. North wind around 6 mph.
Thursday
Partly sunny, with a high near 50. North wind around 7 mph becoming south in the afternoon.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 40. South wind around 6 mph. Chance of precipitation is 30%.
Friday
A chance of rain. Cloudy, with a high near 54. South wind 7 to 11 mph. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
East Harwich MA
 41.69°N 70.04°W (Elev. 52 ft)
Last Update:
11:54 am EST Nov 15, 2025
Forecast Valid:
2pm EST Nov 15, 2025-6pm EST Nov 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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