As of 05:07 EST

Weather in South Williamstown, MA

35°

South Williamstown, Sunday, 15 November, 05:07

Overcast. Feels like 31°. High 41°, low 33°.

Pressure29.94 inHg

Wind4.6 mph SW

Humidity92%

Visibility6.2 mi

Dew point33°

See detailed hourly forecast

Mon, 1641° / 28°

41 °

South Williamstown, Monday, 16 November

Overcast. High 41°, low 28°.

Pressure30.39 inHg

Wind8.9 mph NW

Humidity78%

Visibility6.2 mi

Dew point30°

Tue, 1746° / 27°

46 °

South Williamstown, Tuesday, 17 November

Overcast. High 46°, low 27°.

Pressure30.45 inHg

Wind6.8 mph NW

Humidity72%

Visibility6.2 mi

Dew point34°

Wed, 1849° / 35°

49 °

South Williamstown, Wednesday, 18 November

Overcast. High 49°, low 35°.

Pressure30.42 inHg

Wind8.3 mph W

Humidity64%

Visibility6.2 mi

Dew point37°

Thu, 1952° / 37°

52 °

South Williamstown, Thursday, 19 November

Overcast. High 52°, low 37°.

Pressure30.42 inHg

Wind5.9 mph S

Humidity58%

Visibility—

Dew point32°

Fri, 2051° / 39°

51 °

South Williamstown, Friday, 20 November

Light rain. High 51°, low 39°.

Pressure30.21 inHg

Wind13.5 mph W

Humidity71%

Visibility—

Dew point38°

Sat, 2155° / 40°

55 °

South Williamstown, Saturday, 21 November

Clear. High 55°, low 40°.

Pressure30.36 inHg

Wind4.5 mph SE

Humidity69%

Visibility—

Dew point40°

Sun, 2255° / 42°

55 °

South Williamstown, Sunday, 22 November

Overcast. High 55°, low 42°.

Pressure30.03 inHg

Wind8.9 mph SW

Humidity79%

Visibility—

Dew point44°

Mon, 2344° / 25°

0.04

44 °

South Williamstown, Monday, 23 November

Light rain. High 44°, low 25°.

Pressure30.03 inHg

Wind10.4 mph NW

Humidity97%

Visibility—

Dew point38°

Tue, 2437° / 22°

37 °

South Williamstown, Tuesday, 24 November

Clear. High 37°, low 22°.

Pressure30.59 inHg

Wind4.8 mph NW

Humidity38%

Visibility—

Dew point7°

Wed, 2543° / 26°

43 °

South Williamstown, Wednesday, 25 November

Overcast. High 43°, low 26°.

Pressure30.53 inHg

Wind3.2 mph W

Humidity32%

Visibility—

Dew point10°

Thu, 2649° / 31°

49 °

South Williamstown, Thursday, 26 November

Partly cloudy. High 49°, low 31°.

Pressure30.42 inHg

Wind3.1 mph NW

Humidity37%

Visibility—

Dew point18°

Fri, 2752° / 34°

52 °

South Williamstown, Friday, 27 November

Clear. High 52°, low 34°.

Pressure30.39 inHg

Wind4.4 mph NW

Humidity52%

Visibility—

Dew point28°

Sat, 2853° / 37°

53 °

South Williamstown, Saturday, 28 November

Overcast. High 53°, low 37°.

Pressure30.36 inHg

Wind5.9 mph NW

Humidity71%

Visibility—

Dew point37°

Sun, 2951° / 38°

51 °

South Williamstown, Sunday, 29 November

Mostly clear. High 51°, low 38°.

Pressure30.18 inHg

Wind13.8 mph NW

Humidity62%

Visibility—

Dew point35°

Mon, 3044° / 33°

44 °

South Williamstown, Monday, 30 November

Partly cloudy. High 44°, low 33°.

Pressure30.00 inHg

Wind13.6 mph NW

Humidity70%

Visibility—

Dew point35°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for South Williamstown, MA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in South Williamstown, MA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.