Williamstown, PA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Williamstown, PA in one place.
Sunny, with a high near 78. North wind around 5 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: Jun 3, 2026 4:13 PM EDT.
The active forecast window currently covers Jun 3 to Jun 9, 2026 for Williamstown, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 3 to Jun 9, 2026
- Latest sync
- Jun 3, 2026 4:13 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Williamstown
Friday looks like the warmest upcoming period in Williamstown at 85 degrees F.
Tonight is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Saturday at about 7 to 14 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 3, 2026 4:13 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- PBZ
- Radar station
- KPBZ
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 53. Northwest wind around 2 mph.
Sunny, with a high near 83. West wind around 2 mph.
Mostly clear, with a low around 58. Southwest wind around 2 mph.
Mostly sunny, with a high near 85. Southwest wind 2 to 9 mph.
Partly cloudy, with a low around 64.
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 90%.
Showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 80%.
A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 61. Chance of precipitation is 40%.
Sunny, with a high near 82.
Mostly clear, with a low around 60.
Sunny, with a high near 82.
Partly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jun 3
|
Sunny
|
78°F |
5 mph
N
|
|
Tonight
Jun 3
|
Clear
|
53°F |
2 mph
NW
|
|
Thursday
Jun 4
|
Sunny
|
83°F |
2 mph
W
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
58°F |
2 mph
SW
|
|
Friday
Jun 5
|
Mostly Sunny
|
85°F |
2 to 9 mph
SW
|
|
Friday Night
Jun 5
|
Partly Cloudy
|
64°F |
3 to 7 mph
SW
|
|
Saturday
Jun 6
|
Partly Sunny then Chance Showers And Thunderstorms
|
84°F |
7 to 14 mph
SW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
63°F |
3 to 10 mph
SW
|
|
Sunday
Jun 7
|
Showers And Thunderstorms
|
81°F |
3 to 7 mph
W
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms then Mostly Clear
|
61°F |
1 to 5 mph
NE
|
|
Monday
Jun 8
|
Sunny
|
82°F |
2 to 8 mph
E
|
|
Monday Night
Jun 8
|
Mostly Clear
|
60°F |
3 to 8 mph
E
|
|
Tuesday
Jun 9
|
Sunny
|
82°F |
3 to 8 mph
E
|
|
Tuesday Night
Jun 9
|
Partly Cloudy
|
60°F |
2 to 6 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Williamstown.