Cities / United States / Pennsylvania

27°

☀️ Williamstown weather

Clear sky. .

Feels like 27° Wind 11 km/h NW Humidity 49% Pressure 1017 hPa UV 0 Air Good 06:25 - 19:41

Right now it is 27° in Williamstown with clear skies, today's high is 27° with an overnight low of 18° and about 1.1 mm of rain is expected. The sun rises at 06:25 and sets at 19:41, giving 13h 16m of daylight. Over the coming week highs range from 21° to 32°.

Williamstown is in Pennsylvania, United States, sitting 132 m above sea level. Local time is America/New_York (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

14° 21° 28° 27° 14° 16:00 · 27.2° · 0 mm 17:00 · 27° · 0 mm 18:00 · 25.8° · 0 mm 19:00 · 23.9° · 0 mm 20:00 · 21.9° · 0 mm 21:00 · 20.6° · 0 mm 22:00 · 19.6° · 0 mm 23:00 · 18.4° · 0 mm 00:00 · 17.6° · 0 mm 01:00 · 17° · 0 mm 02:00 · 16.4° · 0 mm 03:00 · 15.7° · 0 mm 04:00 · 15.4° · 0 mm 05:00 · 15° · 0 mm 06:00 · 14.5° · 0 mm 07:00 · 14.2° · 0 mm 08:00 · 16.2° · 0 mm 09:00 · 17.8° · 0 mm 10:00 · 19.4° · 0 mm 11:00 · 20.8° · 0 mm 12:00 · 21.9° · 0 mm 13:00 · 22.9° · 0 mm 14:00 · 23.8° · 0 mm 15:00 · 24.5° · 0 mm

Precipitation

16:00 · 0 mm 16:00 17:00 · 0 mm 18:00 · 0 mm 19:00 · 0 mm 19:00 20:00 · 0 mm 21:00 · 0 mm 22:00 · 0 mm 22:00 23:00 · 0 mm 00:00 · 0 mm 01:00 · 0 mm 01:00 02:00 · 0 mm 03:00 · 0 mm 04:00 · 0 mm 04:00 05:00 · 0 mm 06:00 · 0 mm 07:00 · 0 mm 07:00 08:00 · 0 mm 09:00 · 0 mm 10:00 · 0 mm 10:00 11:00 · 0 mm 12:00 · 0 mm 13:00 · 0 mm 13:00 14:00 · 0 mm 15:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
16:00 ☀️ 27.2° 26.9° - Clear sky
17:00 ☀️ 27° 26.5° - Clear sky
18:00 ☁️ 25.8° 25.3° - Overcast
19:00 ☀️ 23.9° 24.2° - Clear sky
20:00 ☀️ 21.9° 22.1° - Clear sky
21:00 ☀️ 20.6° 20.2° - Clear sky
22:00 ☀️ 19.6° 19.1° - Clear sky
23:00 ☀️ 18.4° 17.4° - Clear sky
00:00 ☀️ 17.6° 16.1° - Clear sky
01:00 ☀️ 17° 16.3° - Clear sky
02:00 ☀️ 16.4° 15.5° - Clear sky
03:00 ☀️ 15.7° 14.6° - Clear sky

Next 16 days

🌧️ TodayAugust 28th Avg 22° Low 18° at 07:00 High 27° at 16:00 1.1 mm rain Wind ~13 km/h
Cloudy Clear Clear
00:00 19° 1.1mm
02:00 19°
04:00 18°
06:00 19°
08:00 19°
10:00 22°
12:00 25°
14:00 27°
16:00 27°
18:00 26°
20:00 22°
22:00 20°
☀️ SaturdayAugust 29th Avg 19° Low 14° at 07:00 High 25° at 16:00 Wind ~11 km/h
Clear
00:00 18°
02:00 16°
04:00 15°
06:00 15°
08:00 16°
10:00 19°
12:00 22°
14:00 24°
16:00 25°
18:00 24°
20:00 20°
22:00 18°
🌧️ SundayAugust 30th Avg 21° Low 17° at 03:00 High 28° at 16:00 8.1 mm rain Wind ~19 km/h
Cloudy Cloudy Rain
00:00 18°
02:00 17°
04:00 17°
06:00 17°
08:00 17° 0.4mm
10:00 21°
12:00 23°
14:00 27° 0.08mm
16:00 28° 0.1mm
18:00 24° 0.8mm
20:00 21° 0.8mm
22:00 19° 0.4mm
🌦️ MondayAugust 31st Avg 21° Low 17° at 06:00 High 27° at 16:00 0.3 mm rain Feels 29° Wind ~12 km/h
Cloudy Cloudy Cloudy
00:00 18° 0.1mm
02:00 17°
04:00 18°
06:00 17°
08:00 19°
10:00 22°
12:00 23°
14:00 26°
16:00 27°
18:00 26°
20:00 23°
22:00 21° 0.2mm
🌧️ TuesdaySeptember 1st Avg 20° Low 19° at 22:00 High 21° at 12:00 17.7 mm rain Feels 23° Wind ~16 km/h
Rain Cloudy
00:00 21° 0.4mm
02:00 20° 0.2mm
04:00 20° 2.1mm
06:00 19° 2.7mm
08:00 20° 3.1mm
10:00 20° 0.6mm
12:00 21°
14:00 20°
16:00 20°
18:00 19°
20:00 19°
22:00 19°
🌦️ WednesdaySeptember 2nd Avg 20° Low 19° at 02:00 High 22° at 16:00 1.4 mm rain Wind ~12 km/h
Cloudy Cloudy Rain Cloudy Rain
00:00 19°
02:00 19°
04:00 19°
06:00 19° 0.1mm
08:00 20°
10:00 20°
12:00 21° 0.1mm
14:00 21° 0.1mm
16:00 22°
18:00 21°
20:00 20°
22:00 20° 0.3mm
🌧️ ThursdaySeptember 3rd Avg 24° Low 20° at 23:00 High 32° at 15:00 8.4 mm rain Wind ~21 km/h
Rain Cloudy Partly Cloudy Rain Clear
00:00 20° 1.3mm
02:00 20° 1.3mm
04:00 20° 1.1mm
06:00 21° 0.2mm
08:00 22° 0.2mm
10:00 25°
12:00 28°
14:00 32°
16:00 31° 0.2mm
18:00 29°
20:00 24°
22:00 21°
FridaySeptember 4th Avg 19° Low 15° at 23:00 High 24° at 17:00 Wind ~13 km/h
Clear Clear
00:00 19°
02:00 18°
04:00 17°
06:00 17°
08:00 18°
10:00 21°
12:00 22°
14:00 22°
16:00 24°
18:00 22°
20:00 18°
22:00 16°
☁️ SaturdaySeptember 5th Avg 16° Low 14° at 04:00 High 18° at 14:00 Wind ~8 km/h
Partly Cloudy Cloudy
00:00 15°
02:00 14°
04:00 14°
06:00 14°
08:00 15°
10:00 17°
12:00 18°
14:00 18°
16:00 18°
18:00 18°
20:00 18°
22:00 17°
🌦️ SundaySeptember 6th Avg 19° Low 17° at 00:00 High 22° at 14:00 3.3 mm rain Wind ~13 km/h
Cloudy Rain Cloudy
00:00 17°
02:00 18°
04:00 17°
06:00 17°
08:00 18°
10:00 19°
12:00 21°
14:00 22°
16:00 21° 0.2mm
18:00 20° 0.9mm
20:00 20° 0.9mm
22:00 20°
☁️ MondaySeptember 7th Avg 22° Low 18° at 23:00 High 27° at 17:00 Feels 29° Wind ~12 km/h
Cloudy Clear
00:00 20°
02:00 20°
04:00 20°
06:00 20°
08:00 21°
10:00 23°
12:00 24°
14:00 26°
16:00 27°
18:00 26°
20:00 22°
22:00 19°
TuesdaySeptember 8th Avg 18° Low 14° at 05:00 High 25° at 16:00 Feels 23° Wind ~17 km/h
Clear Partly Cloudy Clear
00:00 17°
02:00 15°
04:00 14°
06:00 14°
08:00 15°
10:00 20°
12:00 23°
14:00 24°
16:00 25°
18:00 22°
20:00 18°
22:00 16°
☁️ WednesdaySeptember 9th Avg 18° Low 13° at 03:00 High 23° at 17:00 Wind ~12 km/h
Clear Cloudy
00:00 14°
02:00 14°
04:00 14°
06:00 14°
08:00 15°
10:00 19°
12:00 20°
14:00 19°
16:00 22°
18:00 23°
20:00 20°
22:00 20°
☀️ ThursdaySeptember 10th Avg 23° Low 17° at 04:00 High 31° at 15:00 Feels 33° Wind ~21 km/h
Clear
00:00 19°
02:00 18°
04:00 17°
06:00 17°
08:00 19°
10:00 25°
12:00 29°
14:00 31°
16:00 31°
18:00 29°
20:00 24°
22:00 21°
🌧️ FridaySeptember 11th Avg 21° Low 16° at 04:00 High 28° at 16:00 16.8 mm rain Feels 30° Wind ~10 km/h
Clear Partly Cloudy Clear Cloudy Rain
00:00 18°
02:00 17°
04:00 16°
06:00 16°
08:00 18°
10:00 20°
12:00 23°
14:00 26°
16:00 28°
18:00 26° 1.7mm
20:00 22° 1.7mm
22:00 21° 3.9mm
🌦️ SaturdaySeptember 12th Avg 19° Low 14° at 23:00 High 23° at 12:00 2.1 mm rain Feels 25° Wind ~27 km/h
Rain Clear Cloudy Partly Cloudy
00:00 21° 0.7mm
02:00 21° 0.7mm
04:00 20°
06:00 19°
08:00 19°
10:00 22°
12:00 23°
14:00 22°
16:00 19°
18:00 17°
20:00 15°
22:00 14°

Sun

☀️ Sunrise 06:25 · Sunset 19:41

13h 16m of daylight · America/New_York

Air quality

PM2.5 7 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Tools for Williamstown

Common questions about Williamstown weather

Will it rain in Williamstown today?

Yes - about 1.1 mm of rain is expected in Williamstown today.

What is the temperature in Williamstown right now?

It is 27° in Williamstown right now. Today runs between a low of 18° and a high of 27°.

What time is sunrise and sunset in Williamstown?

The sun rises at 06:25 and sets at 19:41 local time in Williamstown today, giving 13h 16m of daylight.

What is the air quality in Williamstown?

PM2.5 in Williamstown is currently 7 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Williamstown forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Williamstown best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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