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Williamstown PA Weather - Overcast - 61°F
Overcast
61°F
Updated 5:24 am
Feels Like 65°F
Humidity 95%
Wind N 0 mph
Barometer  30.06 in
Dew Point 59°F
Williamstown PA Weather - Overcast - 16°C
Overcast
16°C
Updated 5:24 am
Feels Like 18°C
Humidity 95%
Wind N 0 km/h
Barometer  101.7 kPa
Dew Point 15°C
Williamstown, PA Weather and Current Conditionswilliamstown pa weather forecast

Williamstown, PA Weather Forecast

Williamstown Pennsylvania WeatherWilliamstown, Pennsylvania Weather Weather Forecast
14 day API forecast for Williamstown, Pennsylvania. Note. The 7-day weather forecast for Williamstown, PA is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Williamstown, PA Weather Forecast Dated: 524 AM Thu Oct 01 2026
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.

Thursday, October 1, 2026

Mid-Morning
Williamstown Weather - 2026-10-01 - Morning - Overcast
62°F 17°C
Overcast
Mid-Afternoon
Williamstown Weather - 2026-10-01 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Williamstown Weather - 2026-10-01 - Evening - Partly Cloudy
72°F 22°C
Partly Cloudy
Pleasant near 78°F 26°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure.

Friday, October 2, 2026

Mid-Morning
Williamstown Weather - 2026-10-02 - Morning - Partly Cloudy
69°F 20°C
Partly Cloudy
Mid-Afternoon
Williamstown Weather - 2026-10-02 - Afternoon - Light Showers
73°F 23°C
Light Showers
Early-Evening
Williamstown Weather - 2026-10-02 - Evening - Scattered Showers
63°F 18°C
Scattered Showers
Comfortable with temperatures reaching 73°F 23°C, scattered downpours possible, with increasing humidity and steady pressure. Winds turning from the SW to the NNW at 9 mph 13 km/h. Gusts up to 23 mph 37 km/h.

Saturday, October 3, 2026

Mid-Morning
Williamstown Weather - 2026-10-03 - Morning - Sunny
51°F 10°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-03 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Williamstown Weather - 2026-10-03 - Evening - Sunny
57°F 14°C
Sunny
Comfortable at 64°F 18°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the N to the ENE at 5 mph 7 km/h.

Sunday, October 4, 2026

Mid-Morning
Williamstown Weather - 2026-10-04 - Morning - Sunny
51°F 10°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-04 - Afternoon - Overcast
64°F 18°C
Overcast
Early-Evening
Williamstown Weather - 2026-10-04 - Evening - Cloudy
58°F 14°C
Cloudy
Cool with a high near 64°F 18°C, sunny in the morning, becoming overcast through the afternoon and evening, with increasing humidity and barometric pressure falling.

Monday, October 5, 2026

Mid-Morning
Williamstown Weather - 2026-10-05 - Morning - Sunny
56°F 13°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-05 - Afternoon - Overcast
58°F 14°C
Overcast
Early-Evening
Williamstown Weather - 2026-10-05 - Evening - Sunny
51°F 10°C
Sunny
Refreshing around 58°F 14°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure rising. Winds increasing from the NNW at 3 mph 5 km/h to ESE at 11 mph 17 km/h. Gusts up to 24 mph 38 km/h.

Tuesday, October 6, 2026

Mid-Morning
Williamstown Weather - 2026-10-06 - Morning - Sunny
42°F 5°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-06 - Afternoon - Sunny
53°F 12°C
Sunny
Early-Evening
Williamstown Weather - 2026-10-06 - Evening - Sunny
48°F 9°C
Sunny
Cool and brisk at 53°F 12°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the NNW to the NE at 4 mph 7 km/h.

Wednesday, October 7, 2026

Mid-Morning
Williamstown Weather - 2026-10-07 - Morning - Sunny
45°F 7°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-07 - Afternoon - Sunny
59°F 15°C
Sunny
Early-Evening
Williamstown Weather - 2026-10-07 - Evening - Sunny
52°F 11°C
Sunny
Comfortable at 59°F 15°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds blowing from the S at 10 mph 16 km/h.

Thursday, October 8, 2026

Mid-Morning
Williamstown Weather - 2026-10-08 - Morning - Sunny
48°F 9°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-08 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
Williamstown Weather - 2026-10-08 - Evening - Partly Cloudy
58°F 15°C
Partly Cloudy
Cool with a high near 64°F 18°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.

Friday, October 9, 2026

Mid-Morning
Williamstown Weather - 2026-10-09 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-09 - Afternoon - Overcast
66°F 19°C
Overcast
Early-Evening
Williamstown Weather - 2026-10-09 - Evening - Overcast
61°F 16°C
Overcast
Refreshing around 66°F 19°C, cloudy in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling.

Saturday, October 10, 2026

Mid-Morning
Williamstown Weather - 2026-10-10 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Williamstown Weather - 2026-10-10 - Afternoon - Overcast
56°F 13°C
Overcast
Early-Evening
Williamstown Weather - 2026-10-10 - Evening - Heavy Rain Showers
49°F 10°C
Heavy Rain Showers
Cool and brisk at 56°F 13°C, drier conditions through late afternoon before showers move in, with steady humidity and steady pressure. Winds turning from the WNW to the NW at 8 mph 13 km/h.

Sunday, October 11, 2026

Mid-Morning
Williamstown Weather - 2026-10-11 - Morning - Scattered Showers
42°F 6°C
Scattered Showers
Mid-Afternoon
Williamstown Weather - 2026-10-11 - Afternoon - Overcast
44°F 7°C
Overcast
Early-Evening
Williamstown Weather - 2026-10-11 - Evening - Overcast
46°F 8°C
Overcast
Biting cold near 44°F 7°C, scattered downpours possible, with lower humidity and barometric pressure rising. Winds out of the W at 16 mph 26 km/h. Gusts up to 31 mph 49 km/h.

Monday, October 12, 2026

Mid-Morning
Williamstown Weather - 2026-10-12 - Morning - Sunny
46°F 8°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-12 - Afternoon - Sunny
58°F 14°C
Sunny
Early-Evening
Williamstown Weather - 2026-10-12 - Evening - Sunny
52°F 11°C
Sunny
Cool with a high near 58°F 14°C, sunny throughout the day, with lower humidity and steady pressure.

Tuesday, October 13, 2026

Mid-Morning
Williamstown Weather - 2026-10-13 - Morning - Cloudy
49°F 9°C
Cloudy
Mid-Afternoon
Williamstown Weather - 2026-10-13 - Afternoon - Cloudy
60°F 15°C
Cloudy
Early-Evening
Williamstown Weather - 2026-10-13 - Evening - Cloudy
54°F 13°C
Cloudy
Refreshing around 60°F 15°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds moving from the SE to the ESE at 6 mph 9 km/h.

Wednesday, October 14, 2026

Mid-Morning
Williamstown Weather - 2026-10-14 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Williamstown Weather - 2026-10-14 - Afternoon - Overcast
63°F 17°C
Overcast
Early-Evening
Williamstown Weather - 2026-10-14 - Evening - Cloudy
58°F 14°C
Cloudy
Mildly cool near 63°F 17°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.

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Weather by the Numbers

Thu, 1st
Williamstown PA Weather - Thursday, Oct 1, 2026 - Overcast
Hi: 78°F 26°C
Lo: 62°F 17°C
Sunrise 07:03 AM
Sunset 06:49 PM
Wind SSW 4 mph6 km/h
Dew Point 57°F14°C
uv Index 2
Barometric Pressure 30.06 in1018 mb
POP 13% *
Humidity 59%
Fri, 2nd
Williamstown PA Weather - Friday, Oct 2, 2026 - Overcast
Hi: 80°F 26°C
Lo: 57°F 14°C
Sunrise 07:04 AM
Sunset 06:47 PM
Wind WSW 9 mph15 km/h
Dew Point 60°F16°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 12% *
Humidity 55%
Sat, 3rd
Williamstown PA Weather - Saturday, Oct 3, 2026 - Sunny
Hi: 64°F 18°C
Lo: 48°F 9°C
Sunrise 07:06 AM
Sunset 06:45 PM
Wind NNE 9 mph15 km/h
Dew Point 36°F2°C
uv Index 5
Barometric Pressure 30.27 in1025 mb
POP 1% *
Humidity 42%
Sun, 4th
Williamstown PA Weather - Sunday, Oct 4, 2026 - Overcast
Hi: 64°F 18°C
Lo: 47°F 8°C
Sunrise 07:07 AM
Sunset 06:44 PM
Wind SSE 7 mph12 km/h
Dew Point 48°F9°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 15% *
Humidity 63%
Mon, 5th
Williamstown PA Weather - Monday, Oct 5, 2026 - Patchy Rain Nearby
Hi: 62°F 17°C
Lo: 44°F 7°C
Sunrise 07:08 AM
Sunset 06:42 PM
Wind NNW 11 mph18 km/h
Dew Point 48°F9°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 14% *
Humidity 60%
Tue, 6th
Williamstown PA Weather - Tuesday, Oct 6, 2026 - Sunny
Hi: 53°F 12°C
Lo: 39°F 4°C
Sunrise 07:09 AM
Sunset 06:40 PM
Wind N 11 mph18 km/h
Dew Point 30°F-1°C
uv Index 3
Barometric Pressure 30.3 in1026 mb
POP 2% *
Humidity 47%
Wed, 7th
Williamstown PA Weather - Wednesday, Oct 7, 2026 - Sunny
Hi: 59°F 15°C
Lo: 40°F 4°C
Sunrise 07:10 AM
Sunset 06:39 PM
Wind S 9 mph14 km/h
Dew Point 33°F1°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 2% *
Humidity 46%
Thu, 8th
Williamstown PA Weather - Thursday, Oct 8, 2026 - Sunny
Hi: 64°F 18°C
Lo: 43°F 6°C
Sunrise 07:11 AM
Sunset 06:37 PM
Wind S 4 mph7 km/h
Dew Point 39°F4°C
uv Index 4
Barometric Pressure 30.18 in1022 mb
POP 2% *
Humidity 49%
Fri, 9th
Williamstown PA Weather - Friday, Oct 9, 2026 - Sunny
Hi: 67°F 19°C
Lo: 51°F 11°C
Sunrise 07:12 AM
Sunset 06:36 PM
Wind SE 6 mph9 km/h
Dew Point 50°F10°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 4% *
Humidity 63%
Sat, 10th
Williamstown PA Weather - Saturday, Oct 10, 2026 - Patchy Rain Nearby
Hi: 58°F 14°C
Lo: 46°F 8°C
Sunrise 07:13 AM
Sunset 06:34 PM
Wind NW 7 mph11 km/h
Dew Point 48°F9°C
uv Index 3
Barometric Pressure 29.85 in1011 mb
POP 21% *
Humidity 75%
Sun, 11th
Williamstown PA Weather - Sunday, Oct 11, 2026 - Overcast
Hi: 47°F 8°C
Lo: 42°F 5°C
Sunrise 07:14 AM
Sunset 06:32 PM
Wind W 15 mph24 km/h
Dew Point 40°F5°C
uv Index 2
Barometric Pressure 29.74 in1007 mb
POP 31% *
Humidity 92%
Mon, 12th
Williamstown PA Weather - Monday, Oct 12, 2026 - Sunny
Hi: 58°F 15°C
Lo: 43°F 6°C
Sunrise 07:15 AM
Sunset 06:31 PM
Wind WNW 6 mph9 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 30.03 in1017 mb
POP 2% *
Humidity 52%
Tue, 13th
Williamstown PA Weather - Tuesday, Oct 13, 2026 - Overcast
Hi: 60°F 16°C
Lo: 44°F 7°C
Sunrise 07:16 AM
Sunset 06:29 PM
Wind SSE 9 mph15 km/h
Dew Point 42°F6°C
uv Index 3
Barometric Pressure 29.91 in1013 mb
POP 13% *
Humidity 59%
Wed, 14th
Williamstown PA Weather - Wednesday, Oct 14, 2026 - Sunny
Hi: 64°F 18°C
Lo: 48°F 9°C
Sunrise 07:17 AM
Sunset 06:28 PM
Wind E 4 mph7 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 4% *
Humidity 65%
* POP = Probability of Precipitation. Data for 12:00 PM.