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Griff Lake, PA Weather Forecast

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Griff Lake, PA Weather Forecast

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Griff Lake PA weather - Mostly Cloudy - 77°F
Mostly Cloudy
77°F
Updated 5:44 pm
Feels Like 76°F
Humidity 69%
Wind SW 12 mph
Barometer  29.99 in
Dew Point 66°F
Griff Lake PA weather - Mostly Cloudy - 25°C
Mostly Cloudy
25°C
Updated 5:44 pm
Feels Like 25°C
Humidity 69%
Wind SW 19 km/h
Barometer  101.6 kPa
Dew Point 19°C
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Griff Lake Weather Forecast

THIS AFTERNOON TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT
Griff Lake, PA Weather - This Afternoon Mostly Cloudy Griff Lake, PA Weather - Tonight Chance Of T-Storm Griff Lake, PA Weather - Thursday Chance Of T-Storm Griff Lake, PA Weather - Thursday Night Chance Of T-Storm Griff Lake, PA Weather - Friday Chance Of Showers Griff Lake, PA Weather - Friday Night Chance Of Showers Griff Lake, PA Weather - Saturday Chance Of T-Storm Griff Lake, PA Weather - Saturday Night Chance Of T-Storm Griff Lake, PA Weather - Sunday Chance Of T-Storm Griff Lake, PA Weather - Sunday Night Chance Of T-Storm Griff Lake, PA Weather - Monday Mostly Sunny Griff Lake, PA Weather - Monday Night Clear
Mostly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of Showers Chance of Showers Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Mostly Sunny Clear
Hi: 75°FHi: 24°C
 Lo: 61°FLo: 16°C Hi: 75°FHi: 24°C
 Lo: 59°FLo: 15°C Hi: 79°FHi: 26°C
 Lo: 60°FLo: 16°C Hi: 79°FHi: 26°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
POP: 50% POP: 90% POP: 20% POP: 40% POP: 40% POP: 70% POP: 70% POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 223 PM EDT Wed Aug 19 2026 Griff Lake, PA Weather - WeatherWorld.com

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Griff Lake Forecast Discussion

Issued: 149 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...