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Arnold, Pennsylvania Weather Forecast
Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 12:22 pm EST Nov 30, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy on This Afternoon Mostly Cloudy on Tonight Mostly Cloudy on Monday 80% chance of rain & snow on Tuesday Partly Sunny on Wednesday 40% chance of snow on Thursday Partly Sunny on Friday 40% chance of rain & snow on Saturday
High: 45°F Low: 26°F High: 36°F High: 37°F High: 36°F High: 34°F High: 33°F High: 37°F
Low: 26°F Low: 21°F Low: 25°F Low: 11°F Low: 23°F  
Mostly Cloudy Mostly Cloudy Mostly Cloudy Rain & Snow Partly Sunny Snow Partly Sunny Rain & Snow
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Current Conditions at
BUTLER COUNTY - (KBTP)
36°
Feels like 26°F
Cloudy
as of 2:56 PM EST
Rel. Humidity: 64%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 26 MPH
270° West
Cloud Level(s): Solid Overcast at 3300ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
37°
Feels like 25°F
Mostly Cloudy
as of 2:53 PM EST
Rel. Humidity: 69%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
26 MPH
Gust: 40 MPH
250° West
Cloud Level(s): Few at 2600ft, Broken at 3800ft
Current Conditions at
PITTSBURGH - (KPIT)
36°
Feels like 24°F
Mostly Cloudy
as of 2:51 PM EST
Rel. Humidity: 59%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 36 MPH
240° Southwest
Cloud Level(s): Scattered at 2800ft, Broken at 3500ft, Broken at 22000ft
Current Conditions at
LATROBE - (KLBE)
41°
Feels like 30°F
Cloudy
Light Rain
as of 2:53 PM EST
Rel. Humidity: 80%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: MVFR
Wind Data
29 MPH
Gust: 44 MPH
270° West
Cloud Level(s): Broken at 2100ft, Broken at 2700ft, Solid Overcast at 8000ft
Mostly Cloudy on This Afternoon This Afternoon... Mostly cloudy, with a high near 45. Breezy, with a west wind 18 to 20 mph, with gusts as high as 31 mph.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 26. West wind 8 to 14 mph, with gusts as high as 28 mph.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 36. Northwest wind around 5 mph becoming calm in the morning.
80% chance of snow Monday Night Monday Night... Snow, mainly after 1am. Low around 26. Calm wind. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
80% chance of rain & snow Tuesday Tuesday... Snow before 4pm, then a chance of rain and snow. High near 37. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
30% chance of rain & snow Tuesday Night Tuesday Night... A chance of rain and snow before 7pm, then a slight chance of snow between 7pm and 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 36.
30% chance of snow Wednesday Night Wednesday Night... A chance of snow after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
40% chance of snow Thursday Thursday... A chance of snow before 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 11.
Partly Sunny on Friday Friday... Partly sunny, with a high near 33.
50% chance of snow Friday Night Friday Night... A chance of snow. Mostly cloudy, with a low around 23. Chance of precipitation is 50%.
40% chance of rain & snow Saturday Saturday... A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:23 AM
Sunset: 4:53 PM
Civil Sunrise:06:53 AM
Civil Sunset: 5:23 PM
Nautical Sunrise: 06:19 AM
Nautical Sunset: 5:57 PM
Astro Sunrise: 05:46 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.