Chatham Weather Forecast 15 Days, Weather in Chatham Today

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5. Weather in Chatham for 15 days

Current weather conditions and 15 day weather forecast for Chatham, Massachusetts, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.

Current weather conditions at Chatham

25 December 2025 Thursday -0.6 ° C / 30.9°F Partly cloudy

Feels Like : -3.4 ° C / 25.8°F Humidity : % 96 Pressure : 1023 mb Wind Speed : 7.9 kmph / 4.9 miles from NNW Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50

15 day weather forecast for Chatham, MA, USA

Weather Forecast for next 15 Days for Chatham including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.
Here is weather for the next 15 days in Chatham, Massachusetts state, US. To see the daily forecast, scroll to the table below.

Date	Weather forecast	Low temperature	High temperature	Avg. temperature	Humidity	Chance of rain	UV Index	Sun Position	Moon Position
25 December 2025 Thursday	Cloudy	-1.5 ° C (29.2°F)	3.9 ° C (39°F)	1.4 ° C (34.5°F)	% 77	0%	0.1	Sunrise:07:06 AM Sunset: 04:15 PM	Moonrise:10:33 AM Moonset: 09:58 PM Moon Phase ( Waxing Crescent )
26 December 2025 Friday	Overcast	-6 ° C (21.2°F)	-3.3 ° C (26.2°F)	-4.2 ° C (24.4°F)	% 76	0%	0.2	Sunrise:07:06 AM Sunset: 04:16 PM	Moonrise:10:55 AM Moonset: 11:07 PM Moon Phase ( Waxing Crescent )
27 December 2025 Saturday	Cloudy	-2 ° C (28.4°F)	-1.1 ° C (30°F)	-1.2 ° C (29.8°F)	% 70	0%	0.2	Sunrise:07:06 AM Sunset: 04:16 PM	Moonrise:11:16 AM Moonset: No moonset Moon Phase ( First Quarter )
28 December 2025 Sunday	Sunny	-0.4 ° C (31.3°F)	2.4 ° C (36.4°F)	1.1 ° C (34.1°F)	% 50	0%	0.3	Sunrise:07:07 AM Sunset: 04:17 PM	Moonrise:11:39 AM Moonset: 12:17 AM Moon Phase ( Waxing Gibbous )
29 December 2025 Monday	Moderate rain	0.5 ° C (32.8°F)	8.5 ° C (47.3°F)	4.8 ° C (40.6°F)	% 85	88%	0	Sunrise:07:07 AM Sunset: 04:18 PM	Moonrise:12:04 PM Moonset: 01:32 AM Moon Phase ( Waxing Gibbous )
30 December 2025 Tuesday	Sunny	-1.9 ° C (28.6°F)	0.5 ° C (32.9°F)	-0.9 ° C (30.4°F)	% 59	0%	2	Sunrise:07:07 AM Sunset: 04:19 PM	Moonrise:12:36 PM Moonset: 02:49 AM Moon Phase ( Waxing Gibbous )
31 December 2025 Wednesday	Sunny	-2.1 ° C (28.2°F)	0.9 ° C (33.6°F)	-0.6 ° C (31°F)	% 60	0%	2	Sunrise:07:07 AM Sunset: 04:19 PM	Moonrise:01:18 PM Moonset: 04:10 AM Moon Phase ( Waxing Gibbous )
01 January 2026 Thursday	Overcast	1.4 ° C (34.5°F)	2.7 ° C (36.9°F)	2 ° C (35.6°F)	% 72	0%	1	Sunrise:07:07 AM Sunset: 04:20 PM	Moonrise:02:11 PM Moonset: 05:30 AM Moon Phase ( Waxing Gibbous )
02 January 2026 Friday	Partly Cloudy	-0.1 ° C (31.9°F)	1 ° C (33.8°F)	0.5 ° C (32.8°F)	% 56	0%	2	Sunrise:07:07 AM Sunset: 04:21 PM	Moonrise:03:18 PM Moonset: 06:40 AM Moon Phase ( Waxing Gibbous )
03 January 2026 Saturday	Overcast	1.3 ° C (34.3°F)	6.2 ° C (43.1°F)	4.7 ° C (40.5°F)	% 83	0%	1	Sunrise:07:07 AM Sunset: 04:22 PM	Moonrise:04:34 PM Moonset: 07:39 AM Moon Phase ( Full Moon )
04 January 2026 Sunday	Overcast	3.9 ° C (38.9°F)	8.5 ° C (47.3°F)	7.1 ° C (44.7°F)	% 83	0%	2	Sunrise:07:07 AM Sunset: 04:23 PM	Moonrise:05:54 PM Moonset: 08:24 AM Moon Phase ( Waning Gibbous )
05 January 2026 Monday	Sunny	-0.2 ° C (31.6°F)	2 ° C (35.7°F)	0.6 ° C (33.1°F)	% 56	0%	2	Sunrise:07:07 AM Sunset: 04:24 PM	Moonrise:07:11 PM Moonset: 08:59 AM Moon Phase ( Waning Gibbous )
06 January 2026 Tuesday	Partly Cloudy	-3.6 ° C (25.5°F)	-1.4 ° C (29.5°F)	-2 ° C (28.5°F)	% 54	0%	2	Sunrise:07:07 AM Sunset: 04:25 PM	Moonrise:08:24 PM Moonset: 09:26 AM Moon Phase ( Waning Gibbous )
07 January 2026 Wednesday	Cloudy	-3.7 ° C (25.4°F)	-1.2 ° C (29.8°F)	-1.7 ° C (29°F)	% 62	0%	1	Sunrise:07:07 AM Sunset: 04:26 PM	Moonrise:09:33 PM Moonset: 09:49 AM Moon Phase ( Waning Gibbous )

Chatham Weather forecasts are usually fully updated every 4 hours.

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