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Arnold, Pennsylvania Weather Forecast
Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 4:53 am EST Dec 30, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

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Today Tonight Wednesday New Year's Day Friday Saturday Sunday Monday
30% chance of snow on Today 60% chance of snow on Tonight 90% chance of snow on Wednesday 20% chance of snow on New Year's Day Mostly Cloudy on Friday Mostly Cloudy on Saturday Partly Sunny on Sunday 30% chance of rain & snow on Monday
High: 29°F Low: 20°F High: 32°F High: 24°F High: 33°F High: 31°F High: 33°F High: 38°F
Low: 15°F Low: 13°F Low: 16°F Low: 14°F Low: 22°F  
Snow Snow Snow Snow Mostly Cloudy Mostly Cloudy Partly Sunny Rain & Snow
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Current Conditions at
BUTLER COUNTY - (KBTP)
21°
Feels like 7°F
Cloudy
Light Snow
as of 8:56 AM EST
Rel. Humidity: 67%
Dew Point: 12°F
Visibility: 9 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 30 MPH
270° West
Cloud Level(s): Scattered at 2600ft, Broken at 3600ft, Solid Overcast at 4500ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
21°
Feels like 7°F
Cloudy
Light Snow
as of 8:53 AM EST
Rel. Humidity: 67%
Dew Point: 12°F
Visibility: 7 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 28 MPH
290° West
Cloud Level(s): Few at 2500ft, Solid Overcast at 4000ft
Current Conditions at
PITTSBURGH - (KPIT)
21°
Feels like 6°F
Cloudy
Light Snow
as of 9:12 AM EST
Rel. Humidity: 79%
Dew Point: 16°F
Visibility: 3 Miles
Pressure: 29.96 in.
Flight Rule: MVFR
Wind Data
17 MPH
Gust: 26 MPH
280° West
Cloud Level(s): Few at 1200ft, Broken at 2300ft, Solid Overcast at 3700ft
Current Conditions at
LATROBE - (KLBE)
23°
Feels like 8°F
Cloudy
Light Snow
as of 8:53 AM EST
Rel. Humidity: 73%
Dew Point: 16°F
Visibility: 9 Miles
Pressure: 29.97 in.
Flight Rule: MVFR
Wind Data
18 MPH
Gust: 24 MPH
270° West
Cloud Level(s): Solid Overcast at 2500ft, Broken at 3100ft, Solid Overcast at 3700ft
30% chance of snow Today Today... A chance of snow showers, mainly after 5pm. Cloudy, with a high near 29. West wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Total daytime snow accumulation of less than a half inch possible.
60% chance of snow Tonight Tonight... A chance of snow showers before midnight, then snow likely, mainly between midnight and 2am. Mostly cloudy, with a low around 20. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
90% chance of snow Wednesday Wednesday... Snow, mainly after 7am. High near 32. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
90% chance of snow Wednesday Night Wednesday Night... Snow, mainly before 1am. Low around 15. West wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
20% chance of snow New Year's Day New Year's Day... A slight chance of snow before 1pm. Partly sunny, with a high near 24. West wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 13.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 33.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 16.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 31.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 14.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 33.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 22.
30% chance of rain & snow Monday Monday... A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:42 AM
Sunset: 5:01 PM
Civil Sunrise:07:12 AM
Civil Sunset: 5:32 PM
Nautical Sunrise: 06:37 AM
Nautical Sunset: 6:06 PM
Astro Sunrise: 06:04 AM
Astro Sunset: 6:39 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.