Williamstown, PA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Williamstown, PA in one place.
Mostly sunny, with a high near 61. West wind 10 to 15 mph.
Local Weather Overview
This forecast page for Williamstown, PA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 7, 2026 10:17 PM EST.
The active forecast window currently covers Nov 8 to Nov 14, 2026 for Williamstown, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 8 to Nov 14, 2026
- Latest sync
- Nov 7, 2026 10:17 PM EST
- Forecast office
- PHI
- Source
- NOAA / NWS
Daily Outlook
This Week in Williamstown
Tuesday looks like the warmest upcoming period in Williamstown at 63 degrees F.
Friday Night is the coolest period ahead with temperatures near 28 degrees F.
The strongest winds are forecast for Monday at about 10 to 20 mph W.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 7, 2026 10:17 PM EST
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- PHI
- Radar station
- KDIX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 41. West wind 5 to 10 mph, with gusts as high as 25 mph.
Mostly sunny, with a high near 59. West wind 10 to 20 mph, with gusts as high as 35 mph.
Partly cloudy, with a low around 37. West wind 5 to 10 mph.
Mostly sunny, with a high near 63.
Mostly clear, with a low around 38.
Sunny, with a high near 62.
Partly cloudy, with a low around 36.
A chance of rain after 7am. Partly sunny, with a high near 55. Chance of precipitation is 40%.
Rain likely before 4am, then rain and snow likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Rain and snow likely. Partly sunny, with a high near 48. Chance of precipitation is 60%.
A chance of rain before 7pm, then a chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
A chance of rain and snow before 7am. Partly sunny, with a high near 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Nov 8
|
Mostly Sunny
|
61°F |
10 to 15 mph
W
|
|
Sunday Night
Nov 8
|
Partly Cloudy
|
41°F |
5 to 10 mph
W
|
|
Monday
Nov 9
|
Mostly Sunny
|
59°F |
10 to 20 mph
W
|
|
Monday Night
Nov 9
|
Partly Cloudy
|
37°F |
5 to 10 mph
W
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
63°F |
5 to 10 mph
W
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
38°F |
0 to 5 mph
W
|
|
Veterans Day
Nov 11
|
Sunny
|
62°F |
0 to 5 mph
W
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
36°F |
0 mph
|
|
Thursday
Nov 12
|
Chance Light Rain
|
55°F |
0 to 5 mph
NE
|
|
Thursday Night
Nov 12
|
Light Rain Likely then Rain And Snow Likely
|
33°F |
5 to 15 mph
NE
|
|
Friday
Nov 13
|
Rain And Snow Likely
|
48°F |
10 to 15 mph
NE
|
|
Friday Night
Nov 13
|
Chance Rain And Snow
|
28°F |
10 mph
N
|
|
Saturday
Nov 14
|
Chance Rain And Snow then Partly Sunny
|
49°F |
10 to 15 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Williamstown.