Station CHTM3 - 8447435 - Chatham, MA
December 17, 2025 12:48 am ESTLocation: 41.688N 69.95W
Atmospheric Pressure: 30.06 in (1018.0 mb)
Air Temperature: 38.3°F (3.5°C)
Overnight - 33°F
Dec 17, 2025
14 mph SW
Partly Cloudy
Partly cloudy, with a low around 33. Southwest wind around 14 mph, with gusts as high as 29 mph.
Wednesday - 48°F
Dec 17, 2025
14 to 17 mph SW
Mostly Sunny
Mostly sunny, with a high near 48. Southwest wind 14 to 17 mph, with gusts as high as 35 mph.
Wednesday Night - 35°F
Dec 17, 2025
6 to 15 mph W
Mostly Clear
Mostly clear, with a low around 35. West wind 6 to 15 mph, with gusts as high as 30 mph.
Thursday - 50°F
Dec 18, 2025
3 to 12 mph SW
Sunny
Sunny, with a high near 50. Southwest wind 3 to 12 mph.
Thursday Night - 42°F
Dec 18, 2025
12 to 18 mph S
Light Rain Likely
Rain likely after 11pm. Mostly cloudy, with a low around 42. South wind 12 to 18 mph, with gusts as high as 45 mph. Chance of precipitation is 60%.
Friday - 54°F
Dec 19, 2025
18 to 28 mph S
Light Rain
Rain. Cloudy, with a high near 54. South wind 18 to 28 mph, with gusts as high as 49 mph. Chance of precipitation is 100%.
Friday Night - 29°F
Dec 19, 2025
20 mph W
Chance Light Rain then Partly Cloudy
A chance of rain before 10pm. Partly cloudy, with a low around 29. West wind around 20 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.
Saturday - 43°F
Dec 20, 2025
12 to 16 mph W
Mostly Sunny
Mostly sunny, with a high near 43. West wind 12 to 16 mph.
Saturday Night - 34°F
Dec 20, 2025
13 mph SW
Mostly Cloudy
Mostly cloudy, with a low around 34. Southwest wind around 13 mph, with gusts as high as 23 mph.
Sunday - 46°F
Dec 21, 2025
14 mph SW
Slight Chance Light Rain
A slight chance of rain after 11am. Mostly cloudy, with a high near 46. Southwest wind around 14 mph.
Sunday Night - 29°F
Dec 21, 2025
12 mph W
Slight Chance Light Rain then Partly Cloudy
A slight chance of rain before 8pm. Partly cloudy, with a low around 29. West wind around 12 mph.
Monday - 37°F
Dec 22, 2025
12 mph NW
Mostly Sunny
Mostly sunny, with a high near 37. Northwest wind around 12 mph.
Monday Night - 27°F
Dec 22, 2025
10 mph NW
Partly Cloudy then Slight Chance Light Snow
A slight chance of snow after 3am. Partly cloudy, with a low around 27. Northwest wind around 10 mph.
Tuesday - 43°F
Dec 23, 2025
13 mph W
Slight Chance Light Snow then Chance Rain And Snow
A slight chance of snow before 8am, then a chance of rain and snow. Partly sunny, with a high near 43. West wind around 13 mph.