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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 am EST Jan 12, 2026 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Clearing on Today Mostly Clear on Tonight Increasing Clouds on Tuesday 90% chance of rain on Wednesday 60% chance of snow on Thursday 30% chance of snow on Friday 70% chance of snow on Saturday 40% chance of snow on Sunday
High: 39°F Low: 28°F High: 47°F High: 44°F High: 29°F High: 29°F High: 35°F High: 25°F
Low: 39°F Low: 24°F Low: 16°F Low: 21°F Low: 16°F  
Clearing Mostly Clear Increasing Clouds Rain Snow Snow Snow Snow
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Current Conditions at
BUTLER COUNTY - (KBTP)
Clear
as of 4:56 AM EST
Wind Data
Calm
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
28°
Feels like 19°F
Cloudy
as of 4:53 AM EST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: MVFR
Wind Data
10 MPH
250° West
Cloud Level(s): Solid Overcast at 2100ft
Current Conditions at
PITTSBURGH - (KPIT)
28°
Cloudy
as of 4:51 AM EST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.24 in.
Flight Rule: MVFR
Wind Data
6 MPH
240° Southwest
Cloud Level(s): Scattered at 1400ft, Solid Overcast at 2100ft
Current Conditions at
LATROBE - (KLBE)
28°
Feels like 19°F
Cloudy
as of 4:55 AM EST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: MVFR
Wind Data
10 MPH
Gust: 21 MPH
240° Southwest
Cloud Level(s): Solid Overcast at 2400ft
Clearing on Today Today... Cloudy through mid morning, then gradual clearing, with a high near 39. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 28. Southwest wind 6 to 8 mph.
Increasing Clouds on Tuesday Tuesday... Increasing clouds, with a high near 47. South wind 8 to 14 mph.
60% chance of rain Tuesday Night Tuesday Night... Rain likely, mainly after 1am. Mostly cloudy, with a low around 39. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
90% chance of rain Wednesday Wednesday... Rain. High near 44. Southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
90% chance of rain & snow Wednesday Night Wednesday Night... Rain and snow, becoming all snow after 1am. Low around 24. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
60% chance of snow Thursday Thursday... Snow likely, mainly before 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 60%.
30% chance of snow Thursday Night Thursday Night... A chance of snow before 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.
30% chance of snow Friday Friday... A chance of snow after 1pm. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
50% chance of snow Friday Night Friday Night... A chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 50%.
70% chance of snow Saturday Saturday... Snow likely. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.
40% chance of snow Saturday Night Saturday Night... A chance of snow. Mostly cloudy, with a low around 16. Chance of precipitation is 40%.
40% chance of snow Sunday Sunday... A chance of snow. Partly sunny, with a high near 25. Chance of precipitation is 40%.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:42 AM
Sunset: 5:13 PM
Civil Sunrise:07:11 AM
Civil Sunset: 5:44 PM
Nautical Sunrise: 06:38 AM
Nautical Sunset: 6:17 PM
Astro Sunrise: 06:05 AM
Astro Sunset: 6:50 PM
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