Weather WorldWilliamstown, NJ Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Williamstown Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY |
 |  | | | | | | |  |  |  | |
| Clear | Sunny | Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of Showers | Showers | Showers Likely |
| Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C |
| POP: 40% | POP: 60% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 PM EDT Tue Oct 06 2026 
Williamstown Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Williamstown Weather Map
Williamstown Quick Facts
Williamstown Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 112 AM EDT Wed Oct 7 2026
Key Messages
1. A cool air mass in place will likely brings frost to parts of the region tonight, particularly across the Poconos and northwestern New Jersey.
2. Tranquil weather will prevail this week continuing into the weekend with no significant weather hazards anticipated.
3. The next system will approach the area later this weekend bringing chances for rain as early as Sunday afternoon.
Discussion
... KEY MESSAGE 1...A cool air mass in place will likely brings frost to parts of the region tonig...