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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: 5:26 am EST Dec 6, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Cloudy on Today Cloudy on Tonight 40% chance of rain & snow on Sunday Mostly Sunny on Monday 30% chance of snow on Tuesday 80% chance of rain on Wednesday 60% chance of snow on Thursday 50% chance of snow on Friday
High: 38°F Low: 26°F High: 38°F High: 28°F High: 36°F High: 42°F High: 34°F High: 31°F
Low: 18°F Low: 11°F Low: 30°F Low: 26°F Low: 21°F  
Mostly Cloudy Cloudy Rain & Snow Mostly Sunny Snow Rain Snow Snow
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Current Conditions at
BUTLER COUNTY - (KBTP)
25°
Clear
as of 5:56 AM EST
Rel. Humidity: 85%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
6 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
28°
Cloudy
as of 5:53 AM EST
Rel. Humidity: 79%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: MVFR
Wind Data
7 MPH
220° Southwest
Cloud Level(s): Broken at 1900ft, Solid Overcast at 6500ft
Current Conditions at
PITTSBURGH - (KPIT)
28°
Mostly Cloudy
as of 6:30 AM EST
Rel. Humidity: 79%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
7 MPH
210° Southwest
Cloud Level(s): Scattered at 1600ft, Broken at 14000ft
Current Conditions at
LATROBE - (KLBE)
30°
Mostly Cloudy
as of 6:35 AM EST
Rel. Humidity: 86%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: MVFR
Wind Data
7 MPH
210° Southwest
Cloud Level(s): Broken at 2400ft, Broken at 6500ft
Mostly Cloudy on Today Today... Mostly cloudy, with a high near 38. Southwest wind 6 to 11 mph.
Cloudy on Tonight Tonight... Cloudy, with a low around 26. Southwest wind around 5 mph becoming calm in the evening.
40% chance of rain & snow Sunday Sunday... A chance of rain and snow after 1pm. Cloudy, with a high near 38. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
20% chance of rain & snow Sunday Night Sunday Night... A slight chance of rain and snow before 10pm, then a slight chance of snow between 10pm and 1am. Mostly cloudy, with a low around 18. Northwest wind around 6 mph. Chance of precipitation is 20%.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 28. North wind around 7 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 11.
30% chance of snow Tuesday Tuesday... A chance of snow after 1pm. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
40% chance of rain & snow Tuesday Night Tuesday Night... A chance of rain and snow after 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
80% chance of rain Wednesday Wednesday... Rain. High near 42. Chance of precipitation is 80%.
80% chance of rain & snow Wednesday Night Wednesday Night... Rain and snow, becoming all snow after 1am. Low around 26. Chance of precipitation is 80%.
60% chance of snow Thursday Thursday... Snow likely. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.
60% chance of snow Thursday Night Thursday Night... Snow likely. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
50% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:29 AM
Sunset: 4:52 PM
Civil Sunrise:06:58 AM
Civil Sunset: 5:22 PM
Nautical Sunrise: 06:24 AM
Nautical Sunset: 5:57 PM
Astro Sunrise: 05:51 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.