Keystone, Pennsylvania Weather
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Weather Forecast for Keystone, Pennsylvania : Somerset County
Issued: 1:05 pm EDT Sep 4, 2025 Latitude: 39.8064716 Longitude: -78.9855803 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
70% chance of thunderstorms on This Afternoon 60% chance of thunderstorms on Tonight Mostly Cloudy on Friday 70% chance of thunderstorms on Saturday Mostly Sunny on Sunday Sunny on Monday Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday
High: 70°F Low: 55°F High: 77°F High: 67°F High: 64°F High: 64°F High: 67°F High: 70°F High: 71°F
Low: 60°F Low: 47°F Low: 42°F Low: 43°F Low: 45°F Low: 49°F  
Thunderstorms Thunderstorms Mostly Cloudy Thunderstorms Mostly Sunny Sunny Sunny Sunny Mostly Sunny
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Current Conditions at
GREATER CUMBERLAND ARPT - (KCBE)
75°
Clear
as of 4:15 PM EDST
Rel. Humidity: 53%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Wind Data
5 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
JOHNSTOWN - (KJST)
63°
Cloudy
as of 4:20 PM EDST
Rel. Humidity: 88%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: MVFR
Wind Data
9 MPH
210° Southwest
Cloud Level(s): Scattered at 1000ft, Broken at 1600ft, Solid Overcast at 2300ft
Current Conditions at
LATROBE - (KLBE)
68°
Mostly Cloudy
as of 3:47 PM EDST
Rel. Humidity: 88%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: MVFR
Wind Data
17 MPH
Gust: 29 MPH
190° South
Cloud Level(s): Scattered at 1500ft, Broken at 2500ft
Current Conditions at
MORGANTOWN - (KMGW)
68°
Mostly Cloudy
as of 4:01 PM EDST
Rel. Humidity: 77%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: MVFR
Wind Data
6 MPH
210° Southwest
Cloud Level(s): Broken at 2100ft, Broken at 3900ft
70% chance of thunderstorms This Afternoon This Afternoon... Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Southwest wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
60% chance of thunderstorms Tonight Tonight... Showers and thunderstorms likely before 8pm, then a chance of showers between 8pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 55. West wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Cloudy on Friday Friday... Mostly cloudy, then gradually becoming sunny, with a high near 77. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
40% chance of thunderstorms Friday Night Friday Night... A chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of showers after 2am. Increasing clouds, with a low around 60. Southwest wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
70% chance of thunderstorms Saturday Saturday... Showers likely, with thunderstorms also possible after 11am. Cloudy, with a high near 67. West wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
20% chance of thunderstorms Saturday Night Saturday Night... A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 20%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 64.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 42.
Sunny on Monday Monday... Sunny, with a high near 64.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 43.
Sunny on Tuesday Tuesday... Sunny, with a high near 67.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 45.
Sunny on Wednesday Wednesday... Sunny, with a high near 70.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 49.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 71.
Current Radar Image


Sun Almanac for Keystone, Pennsylvania
Sunrise: 06:47 AM
Sunset: 7:42 PM
Civil Sunrise:06:20 AM
Civil Sunset: 8:10 PM
Nautical Sunrise: 05:47 AM
Nautical Sunset: 8:43 PM
Astro Sunrise: 05:13 AM
Astro Sunset: 9:16 PM
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