Cities / United States / Pennsylvania

31°

☁️ Williamstown weather

Overcast. .

Feels like 32° Wind 16 km/h SW Humidity 50% Pressure 1013 hPa UV 0 Air Fair ☀ 06:50 - 19:48
⚠ Severe Thunderstorm Warning · Severe

Severe Thunderstorm Warning issued September 3 at 6:51PM EDT until September 3 at 7:30PM EDT by NWS Pittsburgh PA

⚠ Severe Thunderstorm Watch · Severe

Severe Thunderstorm Watch issued September 3 at 3:03PM EDT until September 3 at 10:00PM EDT by NWS Pittsburgh PA

⚠ Heat Advisory · Moderate

Heat Advisory issued September 2 at 7:40PM EDT until September 3 at 8:00PM EDT by NWS Pittsburgh PA

Right now it is 31° in Williamstown with overcast skies, today's high is 33° with an overnight low of 23° and about 1.8 mm of rain is expected. The sun rises at 06:50 and sets at 19:48, giving 12h 58m of daylight. Over the coming week highs range from 25° to 32°.

Williamstown is in Pennsylvania, United States, sitting 256 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

21° 27° 33° 32° 22° 18:00 · 32.4° · 0 mm 19:00 · 30.2° · 0 mm 20:00 · 28.4° · 0 mm 21:00 · 25.2° · 0 mm 22:00 · 24.9° · 0 mm 23:00 · 22.7° · 1.8 mm 00:00 · 22.6° · 0 mm 01:00 · 22.3° · 0 mm 02:00 · 22.3° · 0 mm 03:00 · 22.4° · 0 mm 04:00 · 22.3° · 0 mm 05:00 · 22.3° · 0 mm 06:00 · 22.1° · 0 mm 07:00 · 21.9° · 0 mm 08:00 · 23° · 0 mm 09:00 · 24.8° · 0 mm 10:00 · 26° · 0 mm 11:00 · 27.1° · 0 mm 12:00 · 29.3° · 0 mm 13:00 · 27.9° · 1.1 mm 14:00 · 26.4° · 0 mm 15:00 · 28° · 0 mm 16:00 · 27.9° · 0 mm 17:00 · 28.7° · 0 mm

Precipitation

18:00 · 0 mm 18:00 19:00 · 0 mm 20:00 · 0 mm 21:00 · 0 mm 21:00 22:00 · 0 mm 23:00 · 1.8 mm 00:00 · 0 mm 00:00 01:00 · 0 mm 02:00 · 0 mm 03:00 · 0 mm 03:00 04:00 · 0 mm 05:00 · 0 mm 06:00 · 0 mm 06:00 07:00 · 0 mm 08:00 · 0 mm 09:00 · 0 mm 09:00 10:00 · 0 mm 11:00 · 0 mm 12:00 · 0 mm 12:00 13:00 · 1.1 mm 14:00 · 0 mm 15:00 · 0 mm 15:00 16:00 · 0 mm 17:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
18:00 ☁️ 32.4° 32.2° - Overcast
19:00 ☁️ 30.2° 30.6° - Overcast
20:00 ⛅ 28.4° 31.1° - Partly cloudy
21:00 ☁️ 25.2° 28° - Overcast
22:00 ☁️ 24.9° 27.9° - Overcast
23:00 🌧️ 22.7° 26° 1.8 mm Rain
00:00 ☀️ 22.6° 25.1° - Clear sky
01:00 ☀️ 22.3° 25° - Clear sky
02:00 ☁️ 22.3° 25.7° - Overcast
03:00 ☀️ 22.4° 26.1° - Clear sky
04:00 ☀️ 22.3° 25.2° - Clear sky
05:00 ☀️ 22.3° 25.9° - Clear sky

Next 16 days

Today🌧️ 33°23°1.8mm Fri 4🌧️ 29°22°1.1mm Sat 5🌧️ 27°16°19.1mm Sun 6☀️ 25°12° Mon 7☁️ 27°13° Tue 8☁️ 28°13° Wed 9🌦️ 32°19°3mm Thu 10☁️ 29°19° Fri 11⛅ 21°14° Sat 12☀️ 25°10° Sun 13🌤️ 31°13°0.3mm Mon 14🌤️ 34°19°0.3mm Tue 15🌧️ 31°19°5.4mm Wed 16🌧️ 28°16°6.3mm Thu 17🌦️ 31°14°3.6mm Fri 18🌤️ 31°18°0.3mm
🌧️ TodaySeptember 3rd Avg 27° Low 23° at 23:00 High 33° at 16:00 1.8 mm rain Feels 35° Wind ~23 km/h
Clear Partly Cloudy Clear
00:00 26°
02:00 25°
04:00 24°
06:00 24°
08:00 24°
10:00 26°
12:00 27°
14:00 31°
16:00 33°
18:00 32°
20:00 28°
22:00 25°
🌧️ FridaySeptember 4th Avg 25° Low 22° at 07:00 High 29° at 12:00 1.1 mm rain Feels 31° Wind ~26 km/h
Clear Cloudy Clear
00:00 23°
02:00 22°
04:00 22°
06:00 22°
08:00 23°
10:00 26°
12:00 29°
14:00 26°
16:00 28°
18:00 29°
20:00 26°
22:00 24°
🌧️ SaturdaySeptember 5th Avg 23° Low 16° at 23:00 High 27° at 17:00 19.1 mm rain Wind ~21 km/h
Rain Cloudy Cloudy Clear
00:00 23°
02:00 23° 4.7mm
04:00 21°
06:00 21°
08:00 21°
10:00 24°
12:00 25°
14:00 25°
16:00 26°
18:00 26°
20:00 20°
22:00 17°
☀️ SundaySeptember 6th Avg 18° Low 12° at 07:00 High 25° at 15:00 Feels 23° Wind ~16 km/h
Clear
00:00 15°
02:00 13°
04:00 13°
06:00 13°
08:00 14°
10:00 20°
12:00 23°
14:00 24°
16:00 25°
18:00 23°
20:00 18°
22:00 16°
☁️ MondaySeptember 7th Avg 19° Low 13° at 05:00 High 27° at 16:00 Wind ~11 km/h
Clear Cloudy Clear
00:00 14°
02:00 14°
04:00 13°
06:00 13°
08:00 15°
10:00 19°
12:00 24°
14:00 26°
16:00 27°
18:00 25°
20:00 19°
22:00 16°
☁️ TuesdaySeptember 8th Avg 19° Low 13° at 07:00 High 28° at 15:00 Wind ~6 km/h
Clear Cloudy
00:00 15°
02:00 14°
04:00 13°
06:00 13°
08:00 15°
10:00 19°
12:00 24°
14:00 28°
16:00 28°
18:00 25°
20:00 20°
22:00 20°
🌦️ WednesdaySeptember 9th Avg 25° Low 19° at 07:00 High 32° at 16:00 3 mm rain Wind ~23 km/h
Cloudy Partly Cloudy Clear Rain
00:00 20°
02:00 20°
04:00 20°
06:00 20°
08:00 19°
10:00 25°
12:00 29°
14:00 32°
16:00 32°
18:00 31° 0.1mm
20:00 28° 0.1mm
22:00 23° 0.9mm
☁️ ThursdaySeptember 10th Avg 23° Low 19° at 07:00 High 29° at 16:00 Feels 26° Wind ~19 km/h
Clear Partly Cloudy Cloudy
00:00 21°
02:00 22°
04:00 21°
06:00 19°
08:00 19°
10:00 23°
12:00 26°
14:00 28°
16:00 29°
18:00 26°
20:00 21°
22:00 19°
⛅ FridaySeptember 11th Avg 17° Low 14° at 06:00 High 21° at 16:00 Feels 18° Wind ~16 km/h
Partly Cloudy Clear Partly Cloudy Partly Cloudy Clear
00:00 18°
02:00 18°
04:00 15°
06:00 14°
08:00 15°
10:00 18°
12:00 20°
14:00 21°
16:00 21°
18:00 19°
20:00 15°
22:00 15°
☀️ SaturdaySeptember 12th Avg 16° Low 10° at 04:00 High 25° at 16:00 Feels 22° Wind ~10 km/h
Clear
00:00 13°
02:00 10°
04:00 10°
06:00 10°
08:00 11°
10:00 16°
12:00 21°
14:00 23°
16:00 25°
18:00 22°
20:00 17°
22:00 15°
🌤️ SundaySeptember 13th Avg 21° Low 13° at 05:00 High 31° at 16:00 0.3 mm rain Wind ~7 km/h
Clear Partly Cloudy Rain Clear
00:00 14°
02:00 14°
04:00 13°
06:00 13°
08:00 16°
10:00 21°
12:00 26° 0.1mm
14:00 29° 0.1mm
16:00 31°
18:00 28°
20:00 22°
22:00 21°
🌤️ MondaySeptember 14th Avg 25° Low 19° at 05:00 High 34° at 15:00 0.3 mm rain Wind ~20 km/h
Clear Rain
00:00 20°
02:00 20°
04:00 19°
06:00 19°
08:00 20°
10:00 25°
12:00 30°
14:00 33°
16:00 33°
18:00 31°
20:00 27°
22:00 24° 0.1mm
🌧️ TuesdaySeptember 15th Avg 24° Low 19° at 07:00 High 31° at 15:00 5.4 mm rain Wind ~20 km/h
Rain Partly Cloudy Rain Cloudy Partly Cloudy Rain
00:00 22° 0.2mm
02:00 21° 0.2mm
04:00 20°
06:00 20°
08:00 20°
10:00 24° 0.3mm
12:00 28°
14:00 31°
16:00 31°
18:00 29°
20:00 25°
22:00 22° 1.3mm
🌧️ WednesdaySeptember 16th Avg 21° Low 16° at 23:00 High 28° at 16:00 6.3 mm rain Feels 26° Wind ~11 km/h
Rain Partly Cloudy Clear
00:00 20° 2mm
02:00 20° 2mm
04:00 20° 0.1mm
06:00 19°
08:00 18°
10:00 21°
12:00 25°
14:00 27°
16:00 28°
18:00 25°
20:00 19°
22:00 17°
🌦️ ThursdaySeptember 17th Avg 21° Low 14° at 03:00 High 31° at 14:00 3.6 mm rain Wind ~20 km/h
Clear Partly Cloudy Rain
00:00 15°
02:00 14°
04:00 14°
06:00 15°
08:00 17°
10:00 23°
12:00 28°
14:00 31°
16:00 30°
18:00 26° 0.3mm
20:00 22° 0.3mm
22:00 20° 0.9mm
🌤️ FridaySeptember 18th Avg 24° Low 18° at 06:00 High 31° at 14:00 0.3 mm rain Feels 29° Wind ~19 km/h
Rain Clear Cloudy
00:00 19° 0.1mm
02:00 19° 0.1mm
04:00 19°
06:00 18°
08:00 19°
10:00 23°
12:00 28°
14:00 31°
16:00 29°
18:00 27°
20:00 25°
22:00 25°

Sun

☀️ Sunrise 06:50 · Sunset 19:48

12h 58m of daylight · America/New_York

Air quality

PM2.5 17.2 µg/m³ - Fair

Fine for almost everyone; unusually sensitive people may notice it on a long run.

Source: Copernicus CAMS, updated hourly.

Nearby

Clarksville Hill · 0.4 km Clarksville · 0.8 km Teagarden Homes · 0.8 km Pitt Gas · 1.1 km Braden Plan · 1.2 km Burson Plan · 1.5 km

Tools for Williamstown

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Williamstown weather

Will it rain in Williamstown today?

Yes - about 1.8 mm of rain is expected in Williamstown today.

What is the temperature in Williamstown right now?

It is 31° in Williamstown right now. Today runs between a low of 23° and a high of 33°.

What time is sunrise and sunset in Williamstown?

The sun rises at 06:50 and sets at 19:48 local time in Williamstown today, giving 12h 58m of daylight.

What is the air quality in Williamstown?

PM2.5 in Williamstown is currently 17.2 µg/m³, which counts as Fair on the European air-quality index. Fine for almost everyone; unusually sensitive people may notice it on a long run.

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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