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Arnold, Pennsylvania Weather Forecast
Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 12:23 am EST Dec 10, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
70% chance of rain & snow on Overnight 100% chance of rain & snow on Wednesday 50% chance of snow on Thursday 40% chance of snow on Friday 50% chance of snow on Saturday 40% chance of snow on Sunday Mostly Cloudy on Monday Partly Sunny on Tuesday
Low: 31°F High: 41°F High: 30°F High: 33°F High: 34°F High: 25°F High: 27°F High: 31°F
Low: 22°F Low: 20°F Low: 22°F Low: 18°F Low: 10°F Low: 14°F  
Rain & Snow Rain & Snow Snow Snow Snow Snow Mostly Cloudy Partly Sunny
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Current Conditions at
BUTLER COUNTY - (KBTP)
34°
Cloudy
as of 11:56 PM EST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: VFR
Wind Data
8 MPH
200° South
Cloud Level(s): Solid Overcast at 9500ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
36°
Feels like 28°F
Cloudy
as of 11:53 PM EST
Rel. Humidity: 64%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: VFR
Wind Data
10 MPH
200° South
Cloud Level(s): Solid Overcast at 11000ft
Current Conditions at
PITTSBURGH - (KPIT)
37°
Feels like 30°F
Cloudy
as of 11:51 PM EST
Rel. Humidity: 60%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: VFR
Wind Data
9 MPH
210° Southwest
Cloud Level(s): Few at 6000ft, Solid Overcast at 10000ft
Current Conditions at
LATROBE - (KLBE)
37°
Feels like 29°F
Clear
as of 12:15 AM EST
Rel. Humidity: 60%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.76 in.
Flight Rule: VFR
Wind Data
13 MPH
210° Southwest
Cloud Level(s): Clear
70% chance of rain & snow Overnight Overnight... A chance of snow before 4am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 31. South wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
100% chance of rain & snow Wednesday Wednesday... Rain and snow, becoming all rain after 1pm. High near 41. Southwest wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
90% chance of rain & snow Wednesday Night Wednesday Night... Rain and snow showers before 9pm, then a chance of snow showers. Low around 22. West wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
50% chance of snow Thursday Thursday... A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 30. West wind 14 to 16 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
30% chance of snow Thursday Night Thursday Night... A chance of snow, mainly after 1am. Mostly cloudy, with a low around 20. Southwest wind 6 to 9 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
40% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 33. Chance of precipitation is 40%.
60% chance of snow Friday Night Friday Night... Snow likely, mainly before 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
50% chance of snow Saturday Saturday... A chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 50%.
70% chance of snow Saturday Night Saturday Night... Snow likely. Cloudy, with a low around 18. Chance of precipitation is 70%.
40% chance of snow Sunday Sunday... A chance of snow before 1pm. Mostly cloudy, with a high near 25. Chance of precipitation is 40%.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 10.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 27.
30% chance of snow Monday Night Monday Night... A chance of snow. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 31.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:32 AM
Sunset: 4:52 PM
Civil Sunrise:07:01 AM
Civil Sunset: 5:23 PM
Nautical Sunrise: 06:27 AM
Nautical Sunset: 5:57 PM
Astro Sunrise: 05:54 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.