Weather WorldChain, PA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Chain Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  |  | | |  |  | | |  |  |
| Rain | Chance of Rain | Patchy Fog | Chance of Showers | Showers | Showers | Mostly Cloudy | Mostly Cloudy | Partly Sunny | Mostly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C |
| POP: 70% | POP: 50% | POP: 90% | POP: 90% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 300 PM EDT Sun Sep 20 2026 
Chain Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Chain Weather Map
Chain Quick Facts
Chain Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 231 PM EDT Sun Sep 20 2026
Key Messages
1) Rain moves to the south early tonight, but returns for Monday. Flood watch considered.
2) Rain potential continues for much of this week, although uncertainty remains in the details due to offshore low development possibilities. On the cool side as well.
Discussion
... KEY MESSAGE 1: Rain moves to the south early tonight, but returns for Monday. Flood watch considered.
Nebulous/broad sfc low pressure over the CWA at 18Z, seemingly centered somewhere within 40 miles of UNV. Several sho...