Mount Pleasant, Pennsylvania Weather
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Weather Forecast for Mount Pleasant, Pennsylvania : Westmoreland County
Issued: 7:03 pm EDT Sep 4, 2025 Latitude: 40.1489607 Longitude: -79.5411497 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
50% chance of rain on Tonight Mostly Cloudy on Friday 70% chance of thunderstorms on Saturday Mostly Sunny on Sunday Morning Fog on Monday Sunny on Tuesday Sunny on Wednesday Sunny on Thursday
Low: 57°F High: 81°F High: 66°F High: 68°F High: 69°F High: 75°F High: 78°F High: 77°F
Low: 58°F Low: 49°F Low: 44°F Low: 45°F Low: 49°F Low: 51°F  
Rain Mostly Cloudy Thunderstorms Mostly Sunny Morning Fog Sunny Sunny Sunny
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Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
63°
Cloudy
as of 6:53 PM EDST
Rel. Humidity: 88%
Dew Point: 59°F
Visibility: 9 Miles
Pressure: 29.78 in.
Flight Rule: VFR
Wind Data
3 MPH
240° Southwest
Cloud Level(s): Few at 3800ft, Solid Overcast at 5500ft
Current Conditions at
JOHNSTOWN - (KJST)
57°
Cloudy
Heavy Rain Mist
as of 7:40 PM EDST
Rel. Humidity: 93%
Dew Point: 55°F
Visibility: 1 3/4 Miles
Pressure: 29.84 in.
Flight Rule: IFR
Wind Data
9 MPH
270° West
Cloud Level(s): Broken at 600ft, Broken at 1300ft, Solid Overcast at 2200ft
Current Conditions at
MORGANTOWN - (KMGW)
70°
Partly Cloudy
as of 6:53 PM EDST
Rel. Humidity: 64%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.81 in.
Flight Rule: VFR
Wind Data
7 MPH
Gust: 20 MPH
210° Southwest
Cloud Level(s): Scattered at 5500ft
50% chance of rain Tonight Tonight... A chance of showers, mainly before 9pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 57. South wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Cloudy on Friday Friday... Mostly cloudy, then gradually becoming sunny, with a high near 81. Southwest wind 7 to 14 mph.
70% chance of thunderstorms Friday Night Friday Night... Showers and thunderstorms likely. Increasing clouds, with a low around 58. South wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
70% chance of thunderstorms Saturday Saturday... Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 66. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
30% chance of rain Saturday Night Saturday Night... A chance of showers or sprinkles before 8pm, then a chance of sprinkles between 8pm and 2am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 49. Light west wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 68.
Morning Fog on Sunday Night Sunday Night... Patchy fog after 1am. Otherwise, mostly clear, with a low around 44.
Morning Fog on Monday Monday... Areas of fog before 9am. Otherwise, sunny, with a high near 69.
Morning Fog on Monday Night Monday Night... Patchy fog after 3am. Otherwise, mostly clear, with a low around 45.
Sunny on Tuesday Tuesday... Sunny, with a high near 75.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 49.
Sunny on Wednesday Wednesday... Sunny, with a high near 78.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 51.
Sunny on Thursday Thursday... Sunny, with a high near 77.
Current Radar Image


Sun Almanac for Mount Pleasant, Pennsylvania
Sunrise: 06:49 AM
Sunset: 7:45 PM
Civil Sunrise:06:22 AM
Civil Sunset: 8:13 PM
Nautical Sunrise: 05:49 AM
Nautical Sunset: 8:45 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 9:19 PM
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