What is the weather in Williamstown right now?

Current weather in Williamstown is broken 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 · 4:50 PM

Williamstown Weather & Hourly Forecast

United States · New Jersey · 08094

86°F

Mostly cloudy

Feels like: 93°F

💧 Humidity 65% 🌡 Pressure 29.83 inHg 💨 Wind 10 mph 👁 Visibility 6.2 mi ☁ Clouds 72% ☀️ UV index 3.3 · Moderate 🌅 Sunrise 6:30 AM 🌇 Sunset 7:27 PM

Hourly Forecast for Williamstown

Today

5:00 PM

Mostly cloudy

86° 💧 None 💨 10 mph H 65%29.83 inHg

8:00 PM

Mostly cloudy night

82° 💧 0.01 in 💨 5 mph H 66%29.83 inHg

11:00 PM

Light rain

76° 💧 0.05 in 💨 5 mph H 79%29.85 inHg

Tomorrow

2:00 AM

Overcast night

72° 💧 None 💨 5 mph H 87%29.85 inHg

5:00 AM

Overcast night

70° 💧 None 💨 5 mph H 75%29.83 inHg

8:00 AM

Overcast

70° 💧 None 💨 5 mph H 69%29.85 inHg

11:00 AM

Overcast

74° 💧 None 💨 6 mph H 49%29.85 inHg

2:00 PM

Overcast

77° 💧 None 💨 5 mph H 41%29.83 inHg

5:00 PM

Partly cloudy

79° 💧 None 💨 5 mph H 43%29.80 inHg

8:00 PM

Mostly cloudy night

73° 💧 None 💨 6 mph H 63%29.83 inHg

11:00 PM

Partly cloudy night

68° 💧 None 💨 4 mph H 72%29.88 inHg

Sunday

2:00 AM

Partly cloudy night

65° 💧 None 💨 4 mph H 75%29.88 inHg

5:00 AM

Clear night

64° 💧 None 💨 5 mph H 81%29.91 inHg

8:00 AM

Mostly sunny

64° 💧 None 💨 7 mph H 77%29.94 inHg

11:00 AM

Sunny

75° 💧 0.01 in 💨 8 mph H 58%29.97 inHg

2:00 PM

Light rain

73° 💧 0.01 in 💨 9 mph H 64%29.97 inHg

Today

5:00 PM

Mostly cloudy

86° 💧 None 💨 10 mph H 65%29.83 inHg

6:00 PM

Mostly cloudy

85° 💧 None 💨 8 mph H 63%29.83 inHg

7:00 PM

Mostly cloudy

84° 💧 None 💨 5 mph H 64%29.83 inHg

8:00 PM

Mostly cloudy night

82° 💧 None 💨 5 mph H 66%29.83 inHg

9:00 PM

Mostly cloudy night

80° 💧 None 💨 5 mph H 67%29.85 inHg

10:00 PM

Light rain

76° 💧 0.01 in 💨 5 mph H 71%29.85 inHg

11:00 PM

Light rain

76° 💧 0.02 in 💨 5 mph H 79%29.85 inHg

Tomorrow

12:00 AM

Light rain

74° 💧 0.02 in 💨 6 mph H 84%29.88 inHg

1:00 AM

Light rain

73° 💧 0.01 in 💨 5 mph H 87%29.85 inHg

2:00 AM

Overcast night

72° 💧 None 💨 5 mph H 87%29.85 inHg

3:00 AM

Overcast night

71° 💧 None 💨 4 mph H 86%29.83 inHg

4:00 AM

Overcast night

71° 💧 None 💨 4 mph H 79%29.83 inHg

5:00 AM

Overcast night

70° 💧 None 💨 5 mph H 75%29.83 inHg

6:00 AM

Overcast night

69° 💧 None 💨 5 mph H 72%29.83 inHg

7:00 AM

Overcast

69° 💧 None 💨 4 mph H 72%29.85 inHg

8:00 AM

Overcast

70° 💧 None 💨 5 mph H 69%29.85 inHg

9:00 AM

Overcast

71° 💧 None 💨 6 mph H 62%29.85 inHg

10:00 AM

Overcast

73° 💧 None 💨 7 mph H 53%29.85 inHg

11:00 AM

Overcast

74° 💧 None 💨 6 mph H 49%29.85 inHg

12:00 PM

Overcast

75° 💧 None 💨 6 mph H 45%29.83 inHg

1:00 PM

Overcast

76° 💧 None 💨 6 mph H 43%29.83 inHg

2:00 PM

Overcast

77° 💧 None 💨 5 mph H 41%29.83 inHg

3:00 PM

Sunny

80° 💧 None 💨 5 mph H 39%29.80 inHg

4:00 PM

Partly cloudy

79° 💧 None 💨 5 mph H 39%29.80 inHg

5:00 PM

Partly cloudy

79° 💧 None 💨 5 mph H 43%29.80 inHg

6:00 PM

Partly cloudy

77° 💧 None 💨 4 mph H 50%29.80 inHg

7:00 PM

Mostly cloudy

74° 💧 None 💨 4 mph H 56%29.80 inHg

8:00 PM

Mostly cloudy night

73° 💧 None 💨 6 mph H 63%29.83 inHg

9:00 PM

Mostly cloudy night

71° 💧 None 💨 4 mph H 70%29.83 inHg

10:00 PM

Mostly cloudy night

70° 💧 None 💨 5 mph H 72%29.85 inHg

11:00 PM

Partly cloudy night

68° 💧 None 💨 4 mph H 72%29.88 inHg

Sunday

12:00 AM

Partly cloudy night

68° 💧 None 💨 4 mph H 72%29.88 inHg

1:00 AM

Partly cloudy night

67° 💧 None 💨 3 mph H 74%29.88 inHg

2:00 AM

Partly cloudy night

65° 💧 None 💨 4 mph H 75%29.88 inHg

3:00 AM

Clear night

64° 💧 None 💨 3 mph H 78%29.88 inHg

4:00 AM

Clear night

64° 💧 None 💨 4 mph H 80%29.88 inHg

5:00 AM

Clear night

64° 💧 None 💨 5 mph H 81%29.91 inHg

6:00 AM

Mostly clear night

63° 💧 None 💨 6 mph H 82%29.91 inHg

7:00 AM

Mostly sunny

63° 💧 None 💨 6 mph H 82%29.94 inHg

8:00 AM

Mostly sunny

64° 💧 None 💨 7 mph H 77%29.94 inHg

9:00 AM

Mostly sunny

70° 💧 None 💨 7 mph H 71%29.97 inHg

10:00 AM

Sunny

73° 💧 None 💨 8 mph H 64%29.97 inHg

11:00 AM

Sunny

75° 💧 None 💨 8 mph H 58%29.97 inHg

12:00 PM

Sunny

77° 💧 None 💨 8 mph H 53%29.97 inHg

1:00 PM

Light rain

76° 💧 0.01 in 💨 10 mph H 55%29.97 inHg

2:00 PM

Light rain

73° 💧 0.01 in 💨 9 mph H 64%29.97 inHg

3:00 PM

Overcast

74° 💧 None 💨 5 mph H 58%29.97 inHg

4:00 PM

Overcast

74° 💧 None 💨 6 mph H 59%29.97 inHg

5:00 PM

Overcast

72° 💧 None 💨 7 mph H 63%30.00 inHg

6:00 PM

Overcast

71° 💧 None 💨 6 mph H 67%30.00 inHg

7:00 PM

Overcast

69° 💧 None 💨 5 mph H 70%30.03 inHg

8:00 PM

Overcast night

68° 💧 None 💨 4 mph H 72%30.03 inHg

9:00 PM

Overcast night

68° 💧 None 💨 5 mph H 73%30.06 inHg

10:00 PM

Overcast night

68° 💧 None 💨 3 mph H 73%30.06 inHg

11:00 PM

Overcast night

67° 💧 None 💨 2 mph H 75%30.06 inHg

Monday

12:00 AM

Overcast night

66° 💧 None 💨 2 mph H 78%30.06 inHg

1:00 AM

Mostly cloudy night

64° 💧 None 💨 2 mph H 80%30.09 inHg

2:00 AM

Mostly cloudy night

64° 💧 None 💨 2 mph H 81%30.09 inHg

3:00 AM

Clear night

63° 💧 None 💨 1 mph H 81%30.09 inHg

4:00 AM

Clear night

63° 💧 None 💨 3 mph H 81%30.09 inHg

5:00 AM

Clear night

62° 💧 None 💨 3 mph H 82%30.12 inHg

6:00 AM

Clear night

62° 💧 None 💨 4 mph H 85%30.12 inHg

7:00 AM

Sunny

62° 💧 None 💨 4 mph H 87%30.15 inHg

8:00 AM

Sunny

65° 💧 None 💨 4 mph H 76%30.15 inHg

9:00 AM

Sunny

69° 💧 None 💨 4 mph H 62%30.15 inHg

10:00 AM

Sunny

73° 💧 None 💨 4 mph H 50%30.18 inHg

11:00 AM

Sunny

76° 💧 None 💨 4 mph H 41%30.18 inHg

12:00 PM

Sunny

78° 💧 None 💨 4 mph H 38%30.18 inHg

1:00 PM

Sunny

79° 💧 None 💨 4 mph H 36%30.15 inHg

2:00 PM

Sunny

81° 💧 None 💨 3 mph H 34%30.15 inHg

3:00 PM

Sunny

81° 💧 None 💨 3 mph H 32%30.12 inHg

4:00 PM

Sunny

81° 💧 None 💨 3 mph H 32%30.09 inHg

5:00 PM

Sunny

81° 💧 None 💨 5 mph H 34%30.12 inHg

6:00 PM

Sunny

78° 💧 None 💨 6 mph H 43%30.12 inHg

7:00 PM

Sunny

73° 💧 None 💨 4 mph H 53%30.15 inHg

8:00 PM

Mostly clear night

70° 💧 None 💨 3 mph H 57%30.18 inHg

9:00 PM

Partly cloudy night

68° 💧 None 💨 1 mph H 61%30.18 inHg

10:00 PM

Mostly cloudy night

67° 💧 None 💨 3 mph H 64%30.18 inHg

11:00 PM

Mostly cloudy night

66° 💧 None 💨 4 mph H 67%30.18 inHg

Tuesday

12:00 AM

Mostly cloudy night

65° 💧 None 💨 4 mph H 71%30.21 inHg

1:00 AM

Mostly cloudy night

65° 💧 None 💨 4 mph H 73%30.21 inHg

2:00 AM

Mostly cloudy night

64° 💧 None 💨 4 mph H 74%30.21 inHg

3:00 AM

Mostly cloudy night

64° 💧 None 💨 4 mph H 75%30.21 inHg

4:00 AM

Mostly cloudy night

63° 💧 None 💨 4 mph H 75%30.21 inHg

5:00 AM

Partly cloudy night

63° 💧 None 💨 4 mph H 76%30.21 inHg

6:00 AM

Mostly cloudy night

62° 💧 None 💨 5 mph H 79%30.21 inHg

7:00 AM

Mostly cloudy

63° 💧 None 💨 4 mph H 79%30.24 inHg

8:00 AM

Mostly cloudy

66° 💧 None 💨 3 mph H 71%30.24 inHg

9:00 AM

Mostly cloudy

71° 💧 None 💨 4 mph H 58%30.27 inHg

10:00 AM

Overcast

73° 💧 None 💨 4 mph H 52%30.27 inHg

11:00 AM

Overcast

76° 💧 None 💨 5 mph H 47%30.24 inHg

12:00 PM

Overcast

79° 💧 None 💨 6 mph H 44%30.24 inHg

1:00 PM

Overcast

81° 💧 None 💨 7 mph H 41%30.24 inHg

2:00 PM

Overcast

82° 💧 None 💨 6 mph H 40%30.21 inHg

3:00 PM

Overcast

82° 💧 None 💨 7 mph H 41%30.18 inHg

4:00 PM

Overcast

82° 💧 None 💨 8 mph H 42%30.18 inHg

In Williamstown and, more broadly, across the state of New Jersey: As the afternoon progresses into the evening, expect a mix of sun and clouds with temperatures remaining mild to warm, ranging from the mid-70s to the low 80s. Winds will be moderate, coming from the west at up to 10 mph, with occasional gusts reaching 16 mph. No precipitation is anticipated, so outdoor plans should remain comfortable. Conditions are generally stable, with no significant weather changes expected through the evening hours. The sky may shift between clear and partly cloudy as the day transitions into night.

15-Day Weather Outlook for Williamstown

TomorrowTomorrow

Light rain 80°/68° 💧 0.03 in 💨 7 mph

Sunday, Sep 6Sun Sep 6

Light rain 77°/63° 💧 0.01 in 💨 10 mph

Monday, Sep 7Mon Sep 7

Sunny 81°/62° 💧 None 💨 5 mph

Tuesday, Sep 8Tue Sep 8

Overcast 82°/63° 💧 None 💨 7 mph

Wednesday, Sep 9Wed Sep 9

Overcast 86°/66° 💧 None 💨 13 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 80°/69° 💧 None 💨 16 mph

Friday, Sep 11Fri Sep 11

Sunny 71°/58° 💧 None 💨 11 mph

Saturday, Sep 12Sat Sep 12

Sunny 71°/51° 💧 None 💨 8 mph

Sunday, Sep 13Sun Sep 13

Mostly cloudy 76°/55° 💧 None 💨 9 mph

Monday, Sep 14Mon Sep 14

Light rain 82°/65° 💧 0.03 in 💨 5 mph

Tuesday, Sep 15Tue Sep 15

Sunny 90°/68° 💧 None 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Light rain 94°/70° 💧 0.04 in 💨 8 mph

Thursday, Sep 17Thu Sep 17

Sunny 102°/77° 💧 None 💨 10 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 95°/71° 💧 None 💨 12 mph

Saturday, Sep 19Sat Sep 19

Sunny 89°/68° 💧 None 💨 7 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

Moderate

Nearest forecast value 5:00 PM

PM2.5 Fine particles Fair 10,9µg/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 11,8µg/m³

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

O₃ Ozone Moderate 118,6µg/m³

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

NO₂ Nitrogen dioxide Good 1,5µg/m³

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

Sensitive people should reduce strenuous and prolonged outdoor exertion.

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 7,5High 😐Moderate

Tomorrow UV 5,6Moderate 🙂Fair

Sunday UV 6,7High 🙂Fair

Monday UV 6,8High 😐Moderate

Tuesday UV 6,8High 😐Moderate

Wednesday UV 8,0Very high —Unavailable

Thursday UV 7,0High —Unavailable

Hourly UV index today

5:00 PMUV 1,6 6:00 PMUV 0,5 7:00 PMUV 0,0

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

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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

Internal PR simulation: 4.41 Population: 14,705

NIGHT SKY · WILLIAMSTOWN, NEW JERSEY

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

51/100Best-hour score

BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 9:00 PM–4:58 AM

☁ Cloud cover 68% Real hourly forecast for the best viewing hour.

☾ Moonlight 44% Last Quarter · Moon below the horizon at the best viewing hour.

☄ Meteor activity No major shower Sporadic meteors remain possible even without a major shower.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min35%

UPCOMING METEOR NIGHTSAstronomy only — check the weather closer to each date.

SEP 20

Southern TauridsActivity begins · 63% Moon

Weather TBD

OCT 2

OrionidsActivity begins · 66% Moon

Weather TBD

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.

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Forecast data for Williamstown were last refreshed today at 4:50 PM. The current forecast period extends through 06/09/2026 at 2:00 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.