Hourly Weather Forecast - Chatham, MA

12 AM
30°F
0%
6mph
W
Cloudy
Humidity
67%
Feels like
24°F
Dew Point
21°F
1 AM
30°F
0%
6mph
W
Cloudy
Humidity
69%
Feels like
23°F
Dew Point
21°F
2 AM
29°F
0%
6mph
W
Cloudy
Humidity
71%
Feels like
23°F
Dew Point
21°F
3 AM
28°F
0%
6mph
W
Cloudy
Humidity
73%
Feels like
22°F
Dew Point
21°F
4 AM
28°F
10%
6mph
W
Cloudy
Humidity
74%
Feels like
22°F
Dew Point
21°F
5 AM
29°F
10%
5mph
W
Cloudy
Humidity
74%
Feels like
23°F
Dew Point
21°F
6 AM
30°F
20%
4mph
W
Cloudy
Humidity
73%
Feels like
25°F
Dew Point
22°F
7 AM
32°F
40%
4mph
WSW
40% Chance of Flurries
Humidity
71%
Feels like
28°F
Dew Point
23°F
7:04 AM
8 AM
33°F
60%
4mph
SW
60% Chance Frozen Mix
Humidity
71%
Feels like
30°F
Dew Point
25°F
9 AM
35°F
80%
4mph
SSW
80% Chance of Light Rain
Humidity
71%
Feels like
32°F
Dew Point
27°F
10 AM
37°F
90%
4mph
SSW
Light Rain
Humidity
70%
Feels like
33°F
Dew Point
28°F
11 AM
38°F
90%
5mph
SSW
Light Rain
Humidity
68%
Feels like
34°F
Dew Point
29°F
12 PM
39°F
100%
6mph
S
Rain
Humidity
70%
Feels like
35°F
Dew Point
30°F
1 PM
40°F
100%
6mph
S
Rain
Humidity
72%
Feels like
35°F
Dew Point
32°F
2 PM
40°F
90%
6mph
S
Rain
Humidity
76%
Feels like
35°F
Dew Point
33°F
3 PM
39°F
90%
6mph
SSW
Rain
Humidity
82%
Feels like
35°F
Dew Point
34°F
4 PM
38°F
80%
6mph
SSW
80% Chance of Rain
Humidity
85%
Feels like
33°F
Dew Point
34°F
4:13 PM
5 PM
37°F
70%
6mph
SSW
70% Chance Frozen Mix
Humidity
88%
Feels like
32°F
Dew Point
34°F
6 PM
37°F
60%
7mph
SW
60% Chance Frozen Mix
Humidity
89%
Feels like
31°F
Dew Point
34°F
7 PM
37°F
50%
7mph
SW
50% Chance Frozen Mix
Humidity
91%
Feels like
31°F
Dew Point
34°F
8 PM
37°F
40%
7mph
WSW
40% Chance of Flurries
Humidity
91%
Feels like
31°F
Dew Point
34°F
9 PM
37°F
40%
7mph
WSW
40% Chance of Flurries
Humidity
91%
Feels like
31°F
Dew Point
34°F
10 PM
37°F
30%
7mph
WSW
30% Chance of Flurries
Humidity
92%
Feels like
31°F
Dew Point
35°F
11 PM
37°F
20%
7mph
W
Mostly Cloudy
Humidity
89%
Feels like
31°F
Dew Point
34°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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