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Arnold, Pennsylvania Weather Forecast
Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 12:31 pm EST Nov 17, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Sunny on This Afternoon Mostly Clear on Tonight 70% chance of rain & snow on Tuesday 30% chance of snow on Wednesday Cloudy on Thursday 60% chance of rain on Friday 40% chance of on Saturday Mostly Sunny on Sunday
High: 45°F Low: 25°F High: 41°F High: 51°F High: 54°F High: 59°F High: 52°F High: 53°F
Low: 33°F Low: 35°F Low: 43°F Low: 37°F Low: 32°F  
Mostly Sunny Mostly Clear Rain & Snow Snow Cloudy Rain Partly Sunny Mostly Sunny
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Current Conditions at
BUTLER COUNTY - (KBTP)
41°
Feels like 33°F
Mostly Cloudy
as of 2:56 PM EST
Rel. Humidity: 44%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 21 MPH
280° West
Cloud Level(s): Broken at 4800ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
41°
Feels like 34°F
Clear
as of 2:53 PM EST
Rel. Humidity: 41%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 21 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
PITTSBURGH - (KPIT)
43°
Feels like 34°F
Partly Cloudy
as of 2:51 PM EST
Rel. Humidity: 38%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 24 MPH
310° Northwest
Cloud Level(s): Scattered at 5000ft
Current Conditions at
LATROBE - (KLBE)
43°
Feels like 36°F
Mostly Clear
as of 2:47 PM EST
Rel. Humidity: 41%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 23 MPH
270° West
Cloud Level(s): Few at 5000ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 45. Northwest wind around 14 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 25. Northwest wind 5 to 7 mph becoming calm in the evening.
70% chance of rain & snow Tuesday Tuesday... A chance of snow between 9am and noon, then rain likely. Increasing clouds, with a high near 41. Light and variable wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
80% chance of rain & snow Tuesday Night Tuesday Night... Rain before 4am, then a chance of rain and snow. Low around 33. Calm wind. Chance of precipitation is 80%. Little or no snow accumulation expected.
30% chance of snow Wednesday Wednesday... A chance of snow before 7am. Partly sunny, with a high near 51. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 35.
Cloudy on Thursday Thursday... Cloudy, with a high near 54.
70% chance of rain Thursday Night Thursday Night... Rain likely, mainly after 1am. Cloudy, with a low around 43. Chance of precipitation is 70%.
60% chance of rain Friday Friday... Rain likely before 10am, then showers likely after 10am. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
60% chance of rain Friday Night Friday Night... Showers likely before 1am, then rain likely after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
40% chance of Saturday Saturday... A chance of showers. Partly sunny, with a high near 52. Chance of precipitation is 40%.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 32.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 53.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:09 AM
Sunset: 5:00 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:29 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 6:02 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:35 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.