Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 1:46 pm EDT May 17, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday Monday Tuesday Wednesday Thursday Friday
50% chance of thunderstorms on This Afternoon 20% chance of rain on Tonight Partly Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday 90% chance of thunderstorms on Wednesday 70% chance of rain on Thursday 60% chance of rain on Friday
High: 75°F Low: 53°F High: 68°F High: 70°F High: 71°F High: 66°F High: 59°F High: 62°F
Low: 48°F Low: 43°F Low: 54°F Low: 49°F Low: 45°F  
Thunderstorms Rain Partly Sunny Mostly Sunny Partly Sunny Thunderstorms Rain Rain
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Current Conditions at
BUTLER COUNTY - (KBTP)
66°
Cloudy
Light Rain
as of 2:56 PM EDST
Rel. Humidity: 68%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.56 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 28 MPH
260° West
Cloud Level(s): Broken at 4800ft, Broken at 6000ft, Solid Overcast at 7500ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
73°
Mostly Cloudy
as of 2:53 PM EDST
Rel. Humidity: 43%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.56 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 32 MPH
250° West
Cloud Level(s): Broken at 4000ft, Broken at 7500ft
Current Conditions at
PITTSBURGH - (KPIT)
75°
Mostly Cloudy
as of 2:51 PM EDST
Rel. Humidity: 47%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.55 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 28 MPH
240° Southwest
Cloud Level(s): Scattered at 4200ft, Broken at 6500ft, Broken at 9500ft
Current Conditions at
LATROBE - (KLBE)
75°
Mostly Cloudy
as of 2:47 PM EDST
Rel. Humidity: 47%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.57 in.
Flight Rule: VFR
Wind Data
33 MPH
Gust: 44 MPH
220° Southwest
Cloud Level(s): Scattered at 5500ft, Broken at 7000ft, Broken at 9000ft
50% chance of thunderstorms This Afternoon This Afternoon... A chance of showers and thunderstorms. Partly sunny, with a high near 75. West wind around 18 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
20% chance of rain Tonight Tonight... A slight chance of showers before 11pm. Mostly cloudy, with a low around 53. West wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 68. West wind 11 to 15 mph, with gusts as high as 25 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 48. Northwest wind 5 to 8 mph becoming calm after midnight.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 70. Light northwest wind increasing to 5 to 9 mph in the morning.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 43.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 71.
80% chance of thunderstorms Tuesday Night Tuesday Night... A chance of thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 54. Chance of precipitation is 80%.
90% chance of thunderstorms Wednesday Wednesday... Showers, with thunderstorms also possible after 2pm. High near 66. Chance of precipitation is 90%.
80% chance of thunderstorms Wednesday Night Wednesday Night... Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 80%.
70% chance of rain Thursday Thursday... Showers likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
50% chance of rain Thursday Night Thursday Night... A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.
60% chance of rain Friday Friday... Showers likely. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 06:00 AM
Sunset: 8:31 PM
Civil Sunrise:05:29 AM
Civil Sunset: 9:02 PM
Nautical Sunrise: 04:50 AM
Nautical Sunset: 9:41 PM
Astro Sunrise: 04:06 AM
Astro Sunset: 10:25 PM
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