Weather World
Harts Trail, PA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Harts Trail Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | | | |  |  |  |  | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Showers Likely | Partly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C |
| POP: 40% | POP: 20% | POP: 50% | POP: 90% | POP: 70% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1030 AM EDT Tue Sep 01 2026 
Harts Trail Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Harts Trail Weather Map
Harts Trail Quick Facts
Harts Trail Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 731 AM EDT Tue Sep 1 2026
Key Messages
1) Late summer surge of heat and humidity brings multi-day severe thunderstorm and excessive rainfall threat to kickoff September
Discussion
... KEY MESSAGE 1:
A series of mid level impulses tracking eastward along the northern periphery of an expansive 500mb ridge will interact with anomalous moisture/instability and strong WNW flow aloft to promote a multi-day severe storm and excessive rain risk across portions of CPA today through Thursday.
A surge of late summer heat (max temps 80-9...