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Chatham, MA Weather Forecast


Chatham, MA Weather Forecast Dated: 319 AM Wed Sep 09 2026
Expect a mild stretch with a mix of sun and clouds and mostly dry weather over the coming period. generally humid conditions and no major pressure swings will dominate.
Wednesday, September 9, 2026
Mid-Morning
70°F 21°C
Overcast
Mid-Afternoon
71°F 22°C
Overcast
Early-Evening
72°F 22°C
Overcast
Pleasant near 71°F 22°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds turning from the SSE to the SSW at 17 mph 27 km/h. Gusts up to 30 mph 49 km/h.
Thursday, September 10, 2026
Mid-Morning
72°F 22°C
Scattered Showers
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
73°F 23°C
Sunny
Comfortable with temperatures reaching 79°F 26°C, scattered downpours possible, with steady humidity and steady pressure. Winds tapering down from WSW 20 mph 32 km/h to WSW 11 mph 17 km/h. Gusts up to 21 mph 34 km/h.
Friday, September 11, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
62°F 17°C
Sunny
Comfortable at 64°F 18°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds decreasing from NNW 17 mph 28 km/h to SSW 5 mph 7 km/h.
Saturday, September 12, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
64°F 18°C
Sunny
Cool with a high near 67°F 19°C, sunny throughout the day, with increasing humidity and steady pressure. Winds swinging from the E to the SSE at 11 mph 17 km/h.
Sunday, September 13, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
67°F 19°C
Overcast
Mild with a high of 68°F 20°C, overcast throughout the day, with steady humidity and steady pressure. Winds blowing from the SSW at 12 mph 19 km/h.
Monday, September 14, 2026
Mid-Morning
69°F 20°C
Light Showers
Mid-Afternoon
72°F 22°C
Scattered Showers
Early-Evening
71°F 22°C
Light Fog
Pleasant near 72°F 22°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the S to the SW at 9 mph 14 km/h.
Tuesday, September 15, 2026
Mid-Morning
65°F 18°C
Overcast
Mid-Afternoon
65°F 18°C
Overcast
Early-Evening
64°F 18°C
Scattered Showers
Comfortable at 65°F 18°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the ENE to the E at 13 mph 21 km/h.
Wednesday, September 16, 2026
Mid-Morning
69°F 21°C
Light Showers
Mid-Afternoon
70°F 21°C
Scattered Showers
Early-Evening
65°F 18°C
Sunny
Enjoyable around 70°F 21°C, scattered downpours possible, with steady humidity and steady pressure. Winds moving from the SSW to the WNW at 14 mph 23 km/h. Gusts up to 26 mph 42 km/h.
Thursday, September 17, 2026
Mid-Morning
59°F 15°C
Scattered Showers
Mid-Afternoon
63°F 17°C
Partly Cloudy
Early-Evening
63°F 17°C
Cloudy
Refreshing around 63°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds decreasing from NNW 22 mph 36 km/h to NNE 14 mph 22 km/h. Gusts up to 22 mph 34 km/h.
Friday, September 18, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
68°F 20°C
Partly Cloudy
Early-Evening
68°F 20°C
Overcast
Mild with a high of 68°F 20°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and barometric pressure falling. Winds picking up from WSW at 6 mph 9 km/h to WSW at 14 mph 23 km/h. Gusts up to 26 mph 41 km/h.
Saturday, September 19, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
54°F 12°C
Sunny
Early-Evening
54°F 12°C
Sunny
Chilly near 54°F 12°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds tapering down from NNE 24 mph 38 km/h to NNE 12 mph 18 km/h.
Sunday, September 20, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
54°F 12°C
Sunny
Crisp with a high near 55°F 13°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the NNE to the SSE at 7 mph 11 km/h.
Monday, September 21, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
67°F 20°C
Partly Cloudy
Refreshing around 64°F 18°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with increasing humidity and barometric pressure falling. Winds picking up from S at 11 mph 18 km/h to SSW at 22 mph 35 km/h. Gusts up to 35 mph 56 km/h.
Tuesday, September 22, 2026
Mid-Morning
71°F 22°C
Scattered Showers
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
66°F 19°C
Partly Cloudy
Mild temperatures up to 73°F 23°C, scattered downpours possible, with lower humidity and steady pressure. Winds swinging from the W to the NNW at 18 mph 28 km/h. Gusts up to 28 mph 45 km/h.
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