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

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
90% chance of snow on Tonight 90% chance of snow on Tuesday Partly Sunny on Wednesday 40% chance of snow on Thursday Mostly Sunny on Friday Mostly Cloudy on Saturday 30% chance of rain & snow on Sunday Partly Sunny on Monday
Low: 27°F High: 37°F High: 35°F High: 33°F High: 33°F High: 38°F High: 36°F High: 32°F
Low: 21°F Low: 25°F Low: 10°F Low: 20°F Low: 26°F Low: 19°F  
Snow Snow Partly Sunny Snow Mostly Sunny Mostly Cloudy Rain & Snow Partly Sunny
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90% chance of snow Tonight Tonight... Snow, mainly after 3am. Low around 27. East wind 3 to 5 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
90% chance of snow Tuesday Tuesday... Snow before 1pm, then a slight chance of snow showers between 1pm and 2pm. The snow could be heavy at times. High near 37. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 21. Northwest wind around 6 mph becoming calm in the evening.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 35. Southwest wind 5 to 9 mph.
30% chance of snow Wednesday Night Wednesday Night... A chance of snow after 1am. Mostly cloudy, with a low around 25. Southwest wind around 7 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
40% chance of snow Thursday Thursday... A chance of snow before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 40%.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 10.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 33.
30% chance of snow Friday Night Friday Night... A chance of snow after 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 38.
30% chance of snow Saturday Night Saturday Night... A chance of snow. Cloudy, with a low around 26. Chance of precipitation is 30%.
30% chance of rain & snow Sunday Sunday... A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
30% chance of snow Sunday Night Sunday Night... A chance of snow. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Partly Sunny on Monday Monday... Partly sunny, with a high near 32.
Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:24 AM
Sunset: 4:53 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:23 PM
Nautical Sunrise: 06:20 AM
Nautical Sunset: 5:57 PM
Astro Sunrise: 05:47 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.