Mount Joy, Pennsylvania Weather
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Weather Forecast for Mount Joy, Pennsylvania : Westmoreland County
Issued: 1:04 pm EDT Jun 21, 2025 Latitude: 40.1450717 Longitude: -79.5019822 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Sunny on This Afternoon Mostly Clear on Tonight Sunny on Sunday Sunny on Monday Sunny on Tuesday 30% chance of thunderstorms on Wednesday 50% chance of thunderstorms on Thursday 50% chance of thunderstorms on Friday
High: 88°F Low: 68°F High: 92°F High: 94°F High: 93°F High: 92°F High: 90°F High: 89°F
Low: 72°F Low: 73°F Low: 72°F Low: 72°F Low: 72°F  
Mostly Sunny Mostly Clear Sunny Sunny Sunny Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
LATROBE - (KLBE)
84°
Partly Cloudy
as of 1:45 PM EDST
Rel. Humidity: 54%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
9 MPH
170° South
Cloud Level(s): Few at 4500ft, Few at 6000ft, Scattered at 7500ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
82°
Partly Cloudy
as of 1:53 PM EDST
Rel. Humidity: 54%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
8 MPH
190° South
Cloud Level(s): Scattered at 4500ft
Current Conditions at
JOHNSTOWN - (KJST)
81°
Mostly Clear
as of 1:54 PM EDST
Rel. Humidity: 51%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
6 MPH
Cloud Level(s): Few at 4700ft
Current Conditions at
STEWART FIELD - (KIDI)
84°
Partly Cloudy
as of 2:15 PM EDST
Rel. Humidity: 51%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
9 MPH
230° Southwest
Cloud Level(s): Scattered at 4800ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 88. Southwest wind around 7 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 68. South wind around 6 mph.
Sunny on Sunday Sunday... Sunny and hot, with a high near 92. Heat index values as high as 100. West wind 6 to 9 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 72. Light south wind.
Sunny on Monday Monday... Sunny and hot, with a high near 94. Calm wind becoming west around 6 mph in the afternoon.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 73.
Sunny on Tuesday Tuesday... Sunny and hot, with a high near 93.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 72.
30% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
30% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
50% chance of thunderstorms Thursday Thursday... A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90. Chance of precipitation is 50%.
30% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
50% chance of thunderstorms Friday Friday... A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Mount Joy, Pennsylvania
Sunrise: 05:49 AM
Sunset: 8:51 PM
Civil Sunrise:05:16 AM
Civil Sunset: 9:24 PM
Nautical Sunrise: 04:34 AM
Nautical Sunset: 10:06 PM
Astro Sunrise: 03:45 AM
Astro Sunset: 10:55 PM
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