Lake Arthur Field, PA Weather Forecast
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Lake Arthur Field Weather Forecast
| OVERNIGHT | TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
| Chance of Showers | Chance of T-Storm | Clear | Chance of T-Storm | Patchy Fog | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Mostly Sunny | Clear | Partly Cloudy |
| Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C |
| POP: 20% | POP: 70% | POP: 20% | POP: 70% | POP: 50% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1213 AM EDT Thu Aug 20 2026 

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Lake Arthur Field Forecast Discussion
Issued: 738 PM EDT Wed Aug 19 2026
Key Messages
1) Slightly higher risk for Flash Flooding overnight tonight into Thursday morning with potential training of heavier rain storms. A Flood Watch has been issued.
2) Additional rounds of rain favored over the weekend with limited hazardous weather risks.
Discussion
... KEY MESSAGE 1... A weak frontal boundary dropping out of southern MI will combine with limited mid-level shortwave movement to create low probability shower and thunderstorm chances mainly nea...
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