As of 23:30 EST

Weather in South Williamstown, MA

38°

South Williamstown, Thursday, 12 November, 23:30

Light rain. Feels like 36°. High 43°, low 38°.

Pressure29.59 inHg

Wind4 mph N

Humidity95%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Fri, 1338° / 29°

0.29

38 °

South Williamstown, Friday, 13 November

Snow. High 38°, low 29°.

Pressure29.65 inHg

Wind8.7 mph N

Humidity86%

Visibility6.2 mi

Dew point26°

Sat, 1440° / 27°

0.03

40 °

South Williamstown, Saturday, 14 November

Snow. High 40°, low 27°.

Pressure29.74 inHg

Wind8.1 mph NW

Humidity84%

Visibility6.2 mi

Dew point30°

Sun, 1539° / 31°

0.02

39 °

South Williamstown, Sunday, 15 November

Light snow. High 39°, low 31°.

Pressure30.09 inHg

Wind10.4 mph NW

Humidity77%

Visibility6.2 mi

Dew point28°

Mon, 1639° / 31°

39 °

South Williamstown, Monday, 16 November

Overcast. High 39°, low 31°.

Pressure30.39 inHg

Wind10.4 mph NW

Humidity75%

Visibility6.2 mi

Dew point30°

Tue, 1744° / 33°

44 °

South Williamstown, Tuesday, 17 November

Overcast. High 44°, low 33°.

Pressure30.45 inHg

Wind7.9 mph NW

Humidity83%

Visibility—

Dew point33°

Wed, 1848° / 32°

48 °

South Williamstown, Wednesday, 18 November

Partly cloudy. High 48°, low 32°.

Pressure30.39 inHg

Wind8.2 mph NW

Humidity80%

Visibility—

Dew point34°

Thu, 1953° / 35°

53 °

South Williamstown, Thursday, 19 November

Partly cloudy. High 53°, low 35°.

Pressure30.36 inHg

Wind3.1 mph S

Humidity63%

Visibility—

Dew point35°

Fri, 2052° / 38°

52 °

South Williamstown, Friday, 20 November

Overcast. High 52°, low 38°.

Pressure30.18 inHg

Wind15.2 mph NW

Humidity82%

Visibility—

Dew point40°

Sat, 2148° / 34°

48 °

South Williamstown, Saturday, 21 November

Overcast. High 48°, low 34°.

Pressure30.39 inHg

Wind5.4 mph S

Humidity75%

Visibility—

Dew point35°

Sun, 2250° / 40°

50 °

South Williamstown, Sunday, 22 November

Overcast. High 50°, low 40°.

Pressure30.03 inHg

Wind8.1 mph W

Humidity79%

Visibility—

Dew point43°

Mon, 2361° / 48°

61 °

South Williamstown, Monday, 23 November

Overcast. High 61°, low 48°.

Pressure30.15 inHg

Wind8.8 mph S

Humidity77%

Visibility—

Dew point48°

Tue, 2462° / 44°

62 °

South Williamstown, Tuesday, 24 November

Partly cloudy. High 62°, low 44°.

Pressure30.15 inHg

Wind9.7 mph S

Humidity66%

Visibility—

Dew point43°

Wed, 2563° / 55°

0.21

63 °

South Williamstown, Wednesday, 25 November

Rain. High 63°, low 55°.

Pressure29.94 inHg

Wind15.2 mph S

Humidity78%

Visibility—

Dew point53°

Thu, 2655° / 27°

0.37

55 °

South Williamstown, Thursday, 26 November

Snow. High 55°, low 27°.

Pressure29.83 inHg

Wind15.6 mph NW

Humidity84%

Visibility—

Dew point34°

Fri, 2733° / 25°

33 °

South Williamstown, Friday, 27 November

Overcast. High 33°, low 25°.

Pressure30.24 inHg

Wind14.5 mph NW

Humidity54%

Visibility—

Dew point14°

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.