Hourly Weather Forecast - Petersham, MA

12 AM
20°F
10%
5mph
W
Mostly Cloudy
Humidity
59%
Feels like
13°F
Dew Point
8°F
1 AM
20°F
10%
5mph
W
Cloudy
Humidity
60%
Feels like
14°F
Dew Point
9°F
2 AM
20°F
10%
4mph
W
Cloudy
Humidity
61%
Feels like
14°F
Dew Point
9°F
3 AM
20°F
10%
4mph
W
Cloudy
Humidity
62%
Feels like
15°F
Dew Point
10°F
4 AM
20°F
10%
4mph
WSW
Cloudy
Humidity
64%
Feels like
15°F
Dew Point
10°F
5 AM
20°F
10%
4mph
WSW
Cloudy
Humidity
65%
Feels like
14°F
Dew Point
10°F
6 AM
20°F
20%
4mph
SW
Cloudy
Humidity
67%
Feels like
13°F
Dew Point
10°F
7 AM
20°F
20%
5mph
SW
Cloudy
Humidity
68%
Feels like
13°F
Dew Point
11°F
7:15 AM
8 AM
21°F
20%
5mph
SW
Cloudy
Humidity
69%
Feels like
15°F
Dew Point
13°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday'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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