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Arnold, Pennsylvania Weather Forecast
Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 7:11 pm EST Nov 29, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
30% chance of snow on Tonight 50% chance of rain & snow on Sunday Mostly Cloudy on Monday 80% chance of snow on Tuesday Mostly Cloudy on Wednesday Mostly Cloudy on Thursday 40% chance of rain & snow on Friday 50% chance of rain & snow on Saturday
Low: 30°F High: 45°F High: 37°F High: 37°F High: 35°F High: 34°F High: 34°F High: 38°F
Low: 25°F Low: 26°F Low: 21°F Low: 23°F Low: 16°F Low: 21°F  
Snow Rain & Snow Mostly Cloudy Snow Mostly Cloudy Mostly Cloudy Rain & Snow Rain & Snow
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Current Conditions at
BUTLER COUNTY - (KBTP)
32°
Feels like 23°F
Cloudy
as of 6:56 PM EST
Rel. Humidity: 59%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
10 MPH
090° East
Cloud Level(s): Solid Overcast at 11000ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
32°
Feels like 23°F
Cloudy
as of 6:53 PM EST
Rel. Humidity: 54%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
12 MPH
100° East
Cloud Level(s): Solid Overcast at 9000ft
Current Conditions at
PITTSBURGH - (KPIT)
34°
Cloudy
as of 6:51 PM EST
Rel. Humidity: 50%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
7 MPH
100° East
Cloud Level(s): Few at 5000ft, Solid Overcast at 8500ft
Current Conditions at
LATROBE - (KLBE)
36°
Clear
as of 6:47 PM EST
Rel. Humidity: 51%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.34 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
30% chance of snow Tonight Tonight... A chance of snow, mainly after 2am. Cloudy, with a low around 30. South wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
50% chance of rain & snow Sunday Sunday... A chance of rain and snow before 9am, then a chance of rain between 9am and 2pm. Mostly cloudy, with a high near 45. Breezy, with a south wind 11 to 20 mph becoming west in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
30% chance of snow Sunday Night Sunday Night... A chance of snow after 1am. Mostly cloudy, with a low around 25. West wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 37. Northwest wind around 5 mph becoming calm in the morning.
60% chance of snow Monday Night Monday Night... Snow likely, mainly after 1am. Cloudy, with a low around 26. Calm wind. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
80% chance of snow Tuesday Tuesday... Snow, mainly before 1pm. High near 37. Chance of precipitation is 80%.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 21.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 35.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 23.
Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 34.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 16.
40% chance of rain & snow Friday Friday... A chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
50% chance of snow Friday Night Friday Night... A chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 50%.
50% chance of rain & snow Saturday Saturday... A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:22 AM
Sunset: 4:53 PM
Civil Sunrise:06:52 AM
Civil Sunset: 5:23 PM
Nautical Sunrise: 06:18 AM
Nautical Sunset: 5:57 PM
Astro Sunrise: 05:45 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.