Weather forecast for 10 days
Williamstown, PA

Weather forecast for the weekend

Saturday, Jun 21.

Partly Cloudy
5:34 am

8:42 pm
EDT
Partly Cloudy
88°F / 68°F
  • Wind: 7mph WSW
  • Humidity: 59%
  • Precip. probability: 6%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Williamstown, sunlight and clouds will take turns dominating the sky.
Rainfall is not forecasted. A temperature range of a humid 87.8°F to an agreeable 68°F is expected.
The forecast high is higher and more aligned with what is typical in July than in June.
Sunrise will be at 5:34 am and sunset at 8:42 pm; the daylight will last for 15h and 8min.

Sunday, Jun 22.

Partly Cloudy
5:34 am

8:42 pm
EDT
Partly Cloudy
91°F / 72°F
  • Wind: 8mph W
  • Humidity: 62%
  • Precip. probability: 19%
  • Precipitation: 0"
  • UV index: 9
On Sunday, in Williamstown, sunny moments will alternate with patchy cloud cover.
Rainfall is not forecasted. Temperature span will be from a high of a hot 91.4°F to a low of an agreeable 71.6°F.
It will be hotter, and the temperature will align more closely with July's average high of 82.2°F than June's.
Sunrise will be at 5:34 am and sunset at 8:42 pm; the daylight will last for 15h and 8min.

Frequently asked questions

What is the weather forecast for Williamstown for Saturday?
On Saturday, a pleasant mix of sun and clouds will define the day.
Will it rain on Saturday?
No, it will not rain on Saturday.
What will be the maximum temperature on Saturday?
On Saturday, the maximum temperature will be 87.8°F, while the minimum temperature will be 68°F.
What is the weather forecast for Williamstown for Sunday?
On Sunday, moderate cloud cover will mix with sunshine throughout the day.
Will it rain on Sunday?
No, it will not rain on Sunday.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 91.4°F, while the minimum temperature will be 71.6°F.
What is the weather forecast for Williamstown for the next ten days?
In Williamstown, weather will be unstable, and a combination of lightning-active, sunny, cloudy and rain-filled weather is expected for the next ten days.
Will it rain in the next ten days?
Rainfall is predicted for Wednesday, Thursday, next Wednesday through next Friday in Williamstown. With light precipitation of 0.2", Thursday, next Thursday and Friday will be the wettest days.
How hot will it be in the next ten days?
The maximum temperature will vary between 80.6°F and 96.8°F, as the minimum temperature will range between 62.6°F and 75.2°F.
Including the humidity's impact, the maximum feel-like temperature will vary between 84.2°F and 116.6°F.
What will be the hottest and the coldest days?
Tuesday will be the hottest day, with a maximum temperature of 96.8°F. Today is the coldest day, with a maximum temperature of 80.6°F.

Long-term weather forecast

WedJun 18.
  • 81°F
  • 68°F
Showers
Showers
  • Wind: 5mph SW
  • Humidity: 84%
  • UV index: 6
  • Precip. probability: 56%
  • Precipitation: 0.04"
  • 5:33 am 8:41 pm EDT
ThuJun 19.
  • 84°F
  • 63°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 11mph SW
  • Humidity: 73%
  • UV index: 8
  • Precip. probability: 44%
  • Precipitation: 0.2"
  • 5:33 am 8:41 pm EDT
FriJun 20.
  • 82°F
  • 64°F
Sunny
Sunny
  • Wind: 9mph WNW
  • Humidity: 60%
  • UV index: 9
  • Precip. probability: 7%
  • Precipitation: 0"
  • 5:34 am 8:42 pm EDT
SatJun 21.
  • 88°F
  • 68°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph WSW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:34 am 8:42 pm EDT
SunJun 22.
  • 91°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph W
  • Humidity: 62%
  • UV index: 9
  • Precip. probability: 19%
  • Precipitation: 0"
  • 5:34 am 8:42 pm EDT
MonJun 23.
  • 95°F
  • 75°F
Sunny
Sunny
  • Wind: 5mph WNW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:34 am 8:42 pm EDT
TueJun 24.
  • 97°F
  • 73°F
Sunny
Sunny
  • Wind: 6mph WNW
  • Humidity: 58%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:35 am 8:42 pm EDT
WedJun 25.
  • 93°F
  • 70°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 5mph WNW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 39%
  • Precipitation: 0.08"
  • 5:35 am 8:42 pm EDT
ThuJun 26.
  • 84°F
  • 68°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 6mph S
  • Humidity: 69%
  • UV index: 8
  • Precip. probability: 32%
  • Precipitation: 0.2"
  • 5:35 am 8:42 pm EDT
FriJun 27.
  • 82°F
  • 66°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 7mph S
  • Humidity: 72%
  • UV index: 9
  • Precip. probability: 44%
  • Precipitation: 0.2"
  • 5:36 am 8:42 pm EDT
The weather will be unstable for the next ten days, and a mix of storm-filled, bright, cloudy and rain-soaked weather is predicted.
Rainfall is predicted for Wednesday, Thursday, next Wednesday through next Friday. The days with the most rainfall will be Thursday, next Thursday and Friday, with light precipitation of 0.2".
Temperature variation will be noticeable in the upcoming period. The temperature is expected to swing from 80.6°F up to 96.8°F, while the lowest night temperatures will vary also significantly, as nighttime lows are forecast to fall between 62.6°F and 75.2°F.
With the highest temperature of 96.8°F, Tuesday will be the hottest day; today is the coldest day, with a maximum temperature of 80.6°F.
Including the humidity's impact, the maximum feel-like temperature may increase vastly and vary between 84.2°F and a blazing hot 116.6°F.
Updated: Jun 18, 2025 @ 13:26:14 UTC
Published by: Weather U.S. | About Us
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