Castle, PA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Castle Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
| Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers |
| Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C |
| POP: 40% | POP: 50% | POP: 80% | POP: 70% | POP: 50% | POP: 80% | POP: 80% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 708 PM EDT Tue Sep 15 2026 

Castle Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Castle Weather Map
Castle Quick Facts
Castle Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 742 PM EDT Tue Sep 15 2026
Key Messages
1) Shower and thunderstorm chances return Wednesday and Thursday, with locally heavy rainfall and gusty wind possible
2) Unsettled pattern returns this weekend into early next week
Discussion
... KEY MESSAGE 1... A surface cold front is expected to drift sewd tonight, reaching Lake Erie/northern Ohio Wednesday morning. A few showers are possible, mainly across NW PA late tonight into Wednesday morning with convergence ahead of the front.
Recent model data has trended toward a more rapid ...
Weather World