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Arnold, Pennsylvania Weather Forecast
Arnold, Pennsylvania Weather
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Click for Special Weather Statement for Arnold, Pennsylvania
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 4:47 am EST Nov 28, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
20% chance of snow on Today 20% chance of snow on Tonight Increasing Clouds on Saturday 80% chance of rain & snow on Sunday Mostly Cloudy on Monday 50% chance of snow on Tuesday Partly Sunny on Wednesday Mostly Cloudy on Thursday
High: 36°F Low: 20°F High: 37°F High: 43°F High: 35°F High: 36°F High: 36°F High: 37°F
Low: 28°F Low: 25°F Low: 24°F Low: 20°F Low: 22°F  
Snow Snow Increasing Clouds Rain & Snow Mostly Cloudy Snow Partly Sunny Mostly Cloudy
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Current Conditions at
BUTLER COUNTY - (KBTP)
Clear
as of 6:56 AM EST
Wind Data
Calm
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
28°
Feels like 18°F
Cloudy
as of 6:53 AM EST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 23 MPH
270° West
Cloud Level(s): Scattered at 2900ft, Solid Overcast at 3600ft
Current Conditions at
PITTSBURGH - (KPIT)
28°
Feels like 18°F
Mostly Cloudy
as of 6:51 AM EST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 24 MPH
260° West
Cloud Level(s): Scattered at 2800ft, Broken at 3500ft
Current Conditions at
LATROBE - (KLBE)
28°
Feels like 16°F
Cloudy
as of 6:50 AM EST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
16 MPH
240° Southwest
Cloud Level(s): Scattered at 2800ft, Broken at 3400ft, Solid Overcast at 4300ft
20% chance of snow Today Today... A slight chance of snow showers before 11am, then a chance of flurries between 11am and 1pm. Mostly cloudy, with a high near 36. Breezy, with a west wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
20% chance of snow Tonight Tonight... A chance of flurries between 8pm and 9pm. Mostly cloudy, with a low around 20. West wind 6 to 10 mph, with gusts as high as 21 mph.
Increasing Clouds on Saturday Saturday... Increasing clouds, with a high near 37. Calm wind becoming east around 5 mph in the afternoon.
90% chance of rain & snow Saturday Night Saturday Night... Snow before 4am, then snow, possibly mixed with rain. Low around 28. South wind 6 to 9 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
80% chance of rain & snow Sunday Sunday... Rain, possibly mixed with snow, becoming all rain after 10am. High near 43. South wind 10 to 16 mph becoming southwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
30% chance of snow Sunday Night Sunday Night... A chance of snow, mainly before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 35.
40% chance of snow Monday Night Monday Night... A chance of snow after 1am. Cloudy, with a low around 24. Chance of precipitation is 40%.
50% chance of snow Tuesday Tuesday... A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 50%.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 20.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 36.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 22.
Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 37.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:21 AM
Sunset: 4:54 PM
Civil Sunrise:06:51 AM
Civil Sunset: 5:24 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 5:58 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:30 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.