Keystone, PA Weather Forecast

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Keystone, PA Weather Forecast

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Keystone PA weather  - Light Rain - 60°F
Light Rain
60°F
Updated 4:26 am
Feels Like 52°F
Humidity 89%
Wind ENE 3 mph
Barometer  30.03 in
Dew Point 57°F
Keystone PA weather  - Light Rain - 16°C
Light Rain
16°C
Updated 4:26 am
Feels Like 11°C
Humidity 89%
Wind ENE 5 km/h
Barometer  101.7 kPa
Dew Point 14°C

Keystone Weather Forecast

OVERNIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
Keystone, PA Weather - Overnight Showers Keystone, PA Weather - Sunday Showers Keystone, PA Weather - Sunday Night Chance Of Showers Keystone, PA Weather - Monday Mostly Cloudy Keystone, PA Weather - Monday Night Chance Of Showers Keystone, PA Weather - Tuesday Chance Of Showers Keystone, PA Weather - Tuesday Night Chance Of Showers Keystone, PA Weather - Wednesday Chance Of Showers Keystone, PA Weather - Wednesday Night Chance Of Showers Keystone, PA Weather - Thursday Chance Of Showers Keystone, PA Weather - Thursday Night Partly Cloudy Keystone, PA Weather - Friday Partly Sunny
Showers Showers Chance of Showers Mostly Cloudy Chance of Showers Chance of Showers Chance of Showers Chance of Showers Chance of Showers Chance of Showers Partly Cloudy Partly Sunny
Lo: 59°FLo: 15°C Hi: 69°FHi: 21°C
Lo: 51°FLo: 11°C Hi: 69°FHi: 21°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: 61°FHi: 16°C
Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
POP: 100% POP: 100% POP: 50% POP: 50% POP: 50% POP: 40% POP: 40% POP: 30% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 230 AM EDT Sun Sep 20 2026 Keystone, PA Weather - WeatherWorld.com

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Issued: 227 AM EDT Sun Sep 20 2026

Key Messages

1) A low pressure system will bring a period of steady rain and showers to the area today. Rainfall amounts between a half inch to one inch are expected.

2) The weather pattern is trending drier, with cooler, fall temperatures for much of next week. A stalled front and later a stronger low off the East Coast could keep shower chances nearby.


Discussion

... KEY MESSAGE 1...

Low pressure is now forecast to track a little further south across southern PA today, so this will keep the bulk of...