What is the weather in Williamstown right now?

Current weather in Williamstown is overcast clouds.

Where can I find the hourly weather forecast for Williamstown?

This page shows hourly weather forecast for Williamstown, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Williamstown updated regularly?

Weather data for Williamstown is updated regularly with the latest available observations and forecasts.

Now · 12:59 AM

Williamstown Weather & Hourly Forecast

United States · Massachusetts · 01267

45°F

Overcast night

Feels like: 41°F

💧 Humidity 82% 🌡 Pressure 30.47 inHg 💨 Wind 3 mph 👁 Visibility 26.7 mi ☁ Clouds 98% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:40 AM 🌇 Sunset 6:50 PM

Hourly Forecast for Williamstown

Today

1:00 AM

Overcast night

45° 💧 None 💨 3 mph H 82%30.47 inHg

4:00 AM

Overcast night

44° 💧 None 💨 4 mph H 79%30.47 inHg

7:00 AM

Mostly cloudy

44° 💧 None 💨 5 mph H 80%30.50 inHg

10:00 AM

Mostly sunny

54° 💧 None 💨 10 mph H 63%30.53 inHg

1:00 PM

Sunny

59° 💧 None 💨 10 mph H 50%30.50 inHg

4:00 PM

Sunny

60° 💧 None 💨 9 mph H 50%30.47 inHg

7:00 PM

Clear night

51° 💧 None 💨 4 mph H 72%30.50 inHg

10:00 PM

Clear night

45° 💧 None 💨 3 mph H 83%30.53 inHg

Tomorrow

1:00 AM

Clear night

42° 💧 None 💨 3 mph H 89%30.50 inHg

4:00 AM

Clear night

42° 💧 None 💨 4 mph H 87%30.50 inHg

7:00 AM

Sunny

42° 💧 None 💨 5 mph H 88%30.50 inHg

10:00 AM

Sunny

54° 💧 None 💨 7 mph H 61%30.47 inHg

1:00 PM

Sunny

61° 💧 None 💨 7 mph H 45%30.42 inHg

4:00 PM

Mostly cloudy

63° 💧 None 💨 7 mph H 43%30.36 inHg

7:00 PM

Mostly cloudy night

53° 💧 None 💨 3 mph H 67%30.36 inHg

10:00 PM

Mostly cloudy night

48° 💧 None 💨 3 mph H 72%30.36 inHg

Today

1:00 AM

Overcast night

45° 💧 None 💨 3 mph H 82%30.47 inHg

2:00 AM

Mostly cloudy night

44° 💧 None 💨 3 mph H 82%30.47 inHg

3:00 AM

Mostly cloudy night

44° 💧 None 💨 3 mph H 80%30.47 inHg

4:00 AM

Overcast night

44° 💧 None 💨 4 mph H 79%30.47 inHg

5:00 AM

Mostly cloudy night

44° 💧 None 💨 5 mph H 79%30.47 inHg

6:00 AM

Mostly cloudy night

44° 💧 None 💨 5 mph H 79%30.50 inHg

7:00 AM

Mostly cloudy

44° 💧 None 💨 5 mph H 80%30.50 inHg

8:00 AM

Sunny

48° 💧 None 💨 7 mph H 74%30.53 inHg

9:00 AM

Sunny

51° 💧 None 💨 7 mph H 70%30.53 inHg

10:00 AM

Mostly sunny

54° 💧 None 💨 10 mph H 63%30.53 inHg

11:00 AM

Sunny

56° 💧 None 💨 11 mph H 54%30.53 inHg

12:00 PM

Sunny

58° 💧 None 💨 11 mph H 53%30.50 inHg

1:00 PM

Sunny

59° 💧 None 💨 10 mph H 50%30.50 inHg

2:00 PM

Sunny

60° 💧 None 💨 10 mph H 50%30.50 inHg

3:00 PM

Sunny

60° 💧 None 💨 9 mph H 50%30.47 inHg

4:00 PM

Sunny

60° 💧 None 💨 9 mph H 50%30.47 inHg

5:00 PM

Sunny

59° 💧 None 💨 8 mph H 52%30.47 inHg

6:00 PM

Sunny

56° 💧 None 💨 6 mph H 60%30.50 inHg

7:00 PM

Clear night

51° 💧 None 💨 4 mph H 72%30.50 inHg

8:00 PM

Clear night

49° 💧 None 💨 3 mph H 76%30.50 inHg

9:00 PM

Clear night

47° 💧 None 💨 3 mph H 80%30.50 inHg

10:00 PM

Clear night

45° 💧 None 💨 3 mph H 83%30.53 inHg

11:00 PM

Clear night

44° 💧 None 💨 2 mph H 84%30.53 inHg

Tomorrow

12:00 AM

Clear night

43° 💧 None 💨 2 mph H 87%30.53 inHg

1:00 AM

Clear night

42° 💧 None 💨 3 mph H 89%30.50 inHg

2:00 AM

Clear night

42° 💧 None 💨 3 mph H 89%30.50 inHg

3:00 AM

Clear night

42° 💧 None 💨 3 mph H 88%30.50 inHg

4:00 AM

Clear night

42° 💧 None 💨 4 mph H 87%30.50 inHg

5:00 AM

Clear night

42° 💧 None 💨 4 mph H 87%30.47 inHg

6:00 AM

Clear night

41° 💧 None 💨 4 mph H 88%30.50 inHg

7:00 AM

Sunny

42° 💧 None 💨 5 mph H 88%30.50 inHg

8:00 AM

Sunny

46° 💧 None 💨 6 mph H 81%30.50 inHg

9:00 AM

Sunny

50° 💧 None 💨 5 mph H 72%30.47 inHg

10:00 AM

Sunny

54° 💧 None 💨 7 mph H 61%30.47 inHg

11:00 AM

Sunny

57° 💧 None 💨 7 mph H 53%30.47 inHg

12:00 PM

Sunny

59° 💧 None 💨 7 mph H 48%30.45 inHg

1:00 PM

Sunny

61° 💧 None 💨 7 mph H 45%30.42 inHg

2:00 PM

Sunny

62° 💧 None 💨 7 mph H 43%30.39 inHg

3:00 PM

Partly cloudy

63° 💧 None 💨 7 mph H 42%30.36 inHg

4:00 PM

Mostly cloudy

63° 💧 None 💨 7 mph H 43%30.36 inHg

5:00 PM

Mostly cloudy

62° 💧 None 💨 6 mph H 47%30.36 inHg

6:00 PM

Mostly sunny

58° 💧 None 💨 4 mph H 61%30.36 inHg

7:00 PM

Mostly cloudy night

53° 💧 None 💨 3 mph H 67%30.36 inHg

8:00 PM

Overcast night

50° 💧 None 💨 4 mph H 70%30.36 inHg

9:00 PM

Overcast night

49° 💧 None 💨 4 mph H 71%30.36 inHg

10:00 PM

Mostly cloudy night

48° 💧 None 💨 3 mph H 72%30.36 inHg

11:00 PM

Mostly cloudy night

47° 💧 None 💨 3 mph H 75%30.33 inHg

Friday

12:00 AM

Overcast night

46° 💧 None 💨 3 mph H 75%30.33 inHg

1:00 AM

Overcast night

46° 💧 None 💨 3 mph H 75%30.30 inHg

2:00 AM

Overcast night

46° 💧 None 💨 4 mph H 76%30.30 inHg

3:00 AM

Overcast night

46° 💧 None 💨 4 mph H 77%30.27 inHg

4:00 AM

Overcast night

46° 💧 None 💨 4 mph H 78%30.27 inHg

5:00 AM

Overcast night

46° 💧 None 💨 3 mph H 79%30.27 inHg

6:00 AM

Mostly clear night

45° 💧 None 💨 3 mph H 81%30.27 inHg

7:00 AM

Overcast

45° 💧 None 💨 3 mph H 81%30.27 inHg

8:00 AM

Overcast

50° 💧 None 💨 4 mph H 77%30.27 inHg

5:00 PM

Overcast

67° 💧 None 💨 7 mph H 47%30.15 inHg

8:00 PM

Mostly cloudy night

55° 💧 None 💨 3 mph H 73%30.15 inHg

11:00 PM

Overcast night

53° 💧 None 💨 3 mph H 71%30.15 inHg

Saturday

2:00 AM

Overcast night

51° 💧 None 💨 3 mph H 72%30.12 inHg

5:00 AM

Overcast night

50° 💧 None 💨 3 mph H 74%30.06 inHg

8:00 AM

Overcast

53° 💧 None 💨 4 mph H 74%30.09 inHg

11:00 AM

Overcast

60° 💧 None 💨 7 mph H 51%30.06 inHg

2:00 PM

Overcast

59° 💧 None 💨 8 mph H 47%30.03 inHg

5:00 PM

Overcast

58° 💧 None 💨 9 mph H 57%29.97 inHg

8:00 PM

Light rain

57° 💧 None 💨 8 mph H 55%29.94 inHg

11:00 PM

Overcast night

53° 💧 None 💨 8 mph H 69%29.91 inHg

Sunday

2:00 AM

Light rain

50° 💧 None 💨 7 mph H 96%29.83 inHg

5:00 AM

Mostly cloudy night

50° 💧 None 💨 8 mph H 96%29.77 inHg

8:00 AM

Light rain

52° 💧 None 💨 6 mph H 95%29.77 inHg

11:00 AM

Light rain

55° 💧 None 💨 6 mph H 90%29.77 inHg

2:00 PM

Overcast

58° 💧 None 💨 8 mph H 82%29.74 inHg

5:00 PM

Overcast

58° 💧 None 💨 6 mph H 85%29.74 inHg

8:00 PM

Overcast night

55° 💧 None 💨 7 mph H 89%29.74 inHg

11:00 PM

Overcast night

55° 💧 None 💨 4 mph H 92%29.71 inHg

Monday

2:00 AM

Light rain

53° 💧 None 💨 4 mph H 99%29.68 inHg

5:00 AM

Light rain

52° 💧 None 💨 6 mph H 100%29.68 inHg

8:00 AM

Light rain

52° 💧 None 💨 6 mph H 100%29.71 inHg

11:00 AM

Light rain

53° 💧 None 💨 8 mph H 96%29.74 inHg

2:00 PM

Overcast

55° 💧 None 💨 7 mph H 94%29.74 inHg

8:00 PM

Overcast night

61° 💧 None 💨 9 mph H 84%29.71 inHg

Tuesday

2:00 AM

Overcast night

56° 💧 None 💨 8 mph H 96%29.77 inHg

8:00 AM

Overcast

55° 💧 None 💨 7 mph H 95%29.83 inHg

2:00 PM

Overcast

54° 💧 None 💨 8 mph H 95%29.91 inHg

8:00 PM

Overcast night

63° 💧 None 💨 8 mph H 73%29.91 inHg

Wednesday

2:00 AM

Clear night

57° 💧 None 💨 1 mph H 88%29.97 inHg

8:00 AM

Partly cloudy

55° 💧 None 💨 3 mph H 95%30.03 inHg

2:00 PM

Partly cloudy

57° 💧 None 💨 3 mph H 91%30.09 inHg

8:00 PM

Overcast night

66° 💧 None 💨 5 mph H 71%30.06 inHg

Thursday

2:00 AM

Overcast night

61° 💧 None 💨 6 mph H 88%30.09 inHg

8:00 AM

Overcast

58° 💧 None 💨 5 mph H 96%30.12 inHg

2:00 PM

Overcast

58° 💧 None 💨 5 mph H 92%30.18 inHg

8:00 PM

Partly cloudy night

67° 💧 None 💨 6 mph H 68%30.15 inHg

Friday

2:00 AM

Mostly clear night

58° 💧 None 💨 3 mph H 87%30.15 inHg

8:00 AM

Partly cloudy

55° 💧 None 💨 5 mph H 97%30.15 inHg

2:00 PM

Overcast

54° 💧 None 💨 4 mph H 98%30.15 inHg

8:00 PM

Partly cloudy night

70° 💧 None 💨 4 mph H 56%30.06 inHg

Saturday

2:00 AM

Overcast night

60° 💧 None 💨 5 mph H 86%30.03 inHg

8:00 AM

Mostly cloudy

57° 💧 None 💨 6 mph H 97%30.03 inHg

2:00 PM

Mostly sunny

59° 💧 None 💨 7 mph H 87%30.03 inHg

8:00 PM

Overcast night

69° 💧 None 💨 9 mph H 76%30.00 inHg

Sunday

2:00 AM

Mostly cloudy night

64° 💧 None 💨 9 mph H 91%29.97 inHg

8:00 AM

Overcast

61° 💧 None 💨 9 mph H 97%29.91 inHg

2:00 PM

Overcast

63° 💧 None 💨 12 mph H 95%29.88 inHg

8:00 PM

Light rain

70° 💧 None 💨 13 mph H 70%29.80 inHg

Monday

2:00 AM

Light rain

62° 💧 None 💨 12 mph H 98%29.74 inHg

8:00 AM

Light rain

61° 💧 None 💨 3 mph H 99%29.68 inHg

2:00 PM

Overcast

56° 💧 None 💨 6 mph H 99%29.71 inHg

8:00 PM

Mostly clear night

65° 💧 None 💨 10 mph H 61%29.68 inHg

Tuesday

2:00 AM

Clear night

56° 💧 None 💨 6 mph H 84%29.71 inHg

8:00 AM

Mostly cloudy

50° 💧 None 💨 6 mph H 96%29.74 inHg

2:00 PM

Partly cloudy

50° 💧 None 💨 6 mph H 95%29.74 inHg

8:00 PM

Overcast night

58° 💧 None 💨 7 mph H 67%29.68 inHg

Wednesday

2:00 AM

Partly cloudy night

49° 💧 None 💨 2 mph H 98%29.74 inHg

8:00 AM

Overcast

49° 💧 None 💨 4 mph H 100%29.74 inHg

2:00 PM

Overcast

51° 💧 None 💨 6 mph H 99%29.83 inHg

In Williamstown and, more broadly, across the state of Massachusetts: This morning will start with mostly cloudy skies and mild temperatures ranging from 52 to 66 degrees Fahrenheit. Winds will be coming from the north at around 10 mph, with occasional gusts reaching up to 23 mph. As the day progresses into the afternoon, the cloud cover is expected to remain, but no precipitation is forecasted. Temperatures will stay mild, providing comfortable conditions for outdoor activities. Winds will continue at moderate speeds, with gusts still reaching around 23 mph. Overall, it looks like a relatively calm and cloudy day with no significant weather disturbances expected.

15-Day Weather Outlook for Williamstown

Wednesday, Sep 23Wed Sep 23

Mostly cloudy 60°/44° 💧 None 💨 11 mph

TomorrowTomorrow

Partly cloudy 63°/41° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Overcast 68°/45° 💧 None 💨 8 mph

Saturday, Sep 26Sat Sep 26

Moderate rain 59°/51° 💧 0.180 in 💨 9 mph

Sunday, Sep 27Sun Sep 27

Moderate rain 59°/52° 💧 0.203 in 💨 10 mph

Monday, Sep 28Mon Sep 28

Light rain 61°/55° 💧 0.055 in 💨 9 mph

Tuesday, Sep 29Tue Sep 29

Overcast 63°/54° 💧 0.005 in 💨 8 mph

Wednesday, Sep 30Wed Sep 30

Overcast 66°/55° 💧 0.022 in 💨 6 mph

Thursday, Oct 1Thu Oct 1

Partly cloudy 67°/58° 💧 0.026 in 💨 6 mph

Friday, Oct 2Fri Oct 2

Partly cloudy 70°/54° 💧 0.002 in 💨 5 mph

Saturday, Oct 3Sat Oct 3

Overcast 69°/57° 💧 0.014 in 💨 9 mph

Sunday, Oct 4Sun Oct 4

Light rain 70°/61° 💧 0.214 in 💨 13 mph

Monday, Oct 5Mon Oct 5

Light rain 65°/56° 💧 0.151 in 💨 10 mph

Tuesday, Oct 6Tue Oct 6

Overcast 58°/49° 💧 0.059 in 💨 7 mph

Wednesday, Oct 7Wed Oct 7

Overcast 51°/49° 💧 0.071 in 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Williamstown

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Williamstown

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 1:00 AM

PM2.5 Fine particles Good 1,1µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 1,6µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 55,8µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 4,9µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Williamstown

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 5,1Moderate 😊Good

Tomorrow UV 5,1Moderate 🙂Fair

Friday UV 4,4Moderate 🙂Fair

Saturday UV 2,2Low 🙂Fair

Sunday UV 3,0Moderate —Unavailable

Monday UV 3,0Moderate —Unavailable

Tuesday UV 5,0Moderate —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,3 9:00 AMUV 1,1 10:00 AMUV 2,3 11:00 AMUV 3,7 12:00 PMUV 4,8 1:00 PMUV 5,1 2:00 PMUV 4,6 3:00 PMUV 3,4 4:00 PMUV 2,0 5:00 PMUV 0,8 6:00 PMUV 0,2

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Williamstown

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · WILLIAMSTOWN, MASSACHUSETTS

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

47/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 70% Real hourly forecast for the best viewing hour.

☾ Moonlight 88% Waxing Gibbous · Moon about 11° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 50° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Sainte-Marthe CA · Quebec · 1,014 residents Yamba (NSW) AU · New South Wales · 6,405 residents Whitewood US · South Dakota · 912 residents Divide US · Colorado · 87 residents San Angelo US · Texas · 99,674 residents Trevorton US · Pennsylvania · 1,775 residents Underwood-Petersville US · Alabama · 3,100 residents Sunrise Manor US · Nevada · 200,218 residents Oreland US · Pennsylvania · 5,953 residents Channelview US · Texas · 43,605 residents Delahey AU · Victoria · 8,077 residents Norton-on-Derwent GB · England · 7,905 residents Crestview US · Florida · 28,773 residents Zionsville US · Indiana · 32,095 residents Saint-Bernard-de-Lacolle CA · Quebec · 1,542 residents Tingun AU · Queensland · 184 residents

Forecast data for Williamstown were last refreshed today at 12:59 AM. The current forecast period extends through 24/09/2026 at 10:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.