Hourly Weather Forecast - Merrimac, MA

12 AM
31°F
30%
6mph
SSW
30% Chance Snow Showers
Humidity
75%
Feels like
25°F
Dew Point
24°F
1 AM
32°F
30%
7mph
SSW
30% Chance Snow Showers
Humidity
78%
Feels like
25°F
Dew Point
26°F
2 AM
32°F
30%
7mph
SSW
30% Chance Snow Showers
Humidity
79%
Feels like
26°F
Dew Point
27°F
3 AM
32°F
30%
7mph
SSW
30% Chance of Flurries
Humidity
82%
Feels like
26°F
Dew Point
28°F
4 AM
33°F
30%
7mph
SW
30% Chance of Flurries
Humidity
83%
Feels like
26°F
Dew Point
28°F
5 AM
33°F
30%
7mph
SW
30% Chance Frozen Mix
Humidity
83%
Feels like
27°F
Dew Point
29°F
6 AM
34°F
30%
6mph
SW
30% Chance Frozen Mix
Humidity
82%
Feels like
28°F
Dew Point
29°F
7 AM
35°F
30%
6mph
SW
30% Chance Frozen Mix
Humidity
81%
Feels like
30°F
Dew Point
30°F
7:11 AM
8 AM
36°F
20%
6mph
SW
Cloudy
Humidity
81%
Feels like
30°F
Dew Point
31°F
9 AM
37°F
20%
7mph
SW
Cloudy
Humidity
81%
Feels like
31°F
Dew Point
31°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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