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Arnold, Pennsylvania Weather Forecast
Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 5:17 pm EST Dec 31, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
Tonight New Year's Day Friday Saturday Sunday Monday Tuesday Wednesday
100% chance of snow on Tonight Mostly Sunny on New Year's Day Partly Sunny on Friday Mostly Cloudy on Saturday Mostly Cloudy on Sunday Mostly Cloudy on Monday Mostly Cloudy on Tuesday 30% chance of rain on Wednesday
Low: 14°F High: 23°F High: 30°F High: 31°F High: 30°F High: 37°F High: 42°F High: 47°F
Low: 14°F Low: 13°F Low: 15°F Low: 16°F Low: 26°F Low: 33°F  
Snow Mostly Sunny Partly Sunny Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Rain
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Current Conditions at
BUTLER COUNTY - (KBTP)
27°
Feels like 15°F
Cloudy
Light Snow Mist
as of 6:03 PM EST
Rel. Humidity: 100%
Dew Point: 27°F
Visibility: 1 1/2 Miles
Pressure: 29.67 in.
Flight Rule: IFR
Wind Data
13 MPH
220° Southwest
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
27°
Feels like 16°F
Cloudy
Light Snow Mist
as of 5:53 PM EST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 1 Miles
Pressure: 29.68 in.
Flight Rule: IFR
Wind Data
12 MPH
210° Southwest
Cloud Level(s): Solid Overcast at 1200ft
Current Conditions at
PITTSBURGH - (KPIT)
28°
Feels like 17°F
Cloudy
Light Snow Mist
as of 5:51 PM EST
Rel. Humidity: 86%
Dew Point: 25°F
Visibility: 1 1/2 Miles
Pressure: 29.67 in.
Flight Rule: IFR
Wind Data
13 MPH
210° Southwest
Cloud Level(s): Broken at 800ft, Solid Overcast at 1400ft
Current Conditions at
LATROBE - (KLBE)
27°
Feels like 13°F
Cloudy
Light Snow Mist
as of 5:47 PM EST
Rel. Humidity: 100%
Dew Point: 27°F
Visibility: 2 Miles
Pressure: 29.72 in.
Flight Rule: IFR
Wind Data
17 MPH
Gust: 29 MPH
210° Southwest
Cloud Level(s): Scattered at 200ft, Solid Overcast at 800ft
100% chance of snow Tonight Tonight... Snow, mainly before 2am. Low around 14. Northwest wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 23. West wind 8 to 11 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 14. Southwest wind around 6 mph.

Partly Sunny on Friday Friday... Partly sunny, with a high near 30. Southwest wind 6 to 9 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 13. West wind around 5 mph becoming calm in the evening.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 31.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 15.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 30.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 16.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 37.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 26.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 42.

40% chance of rain Tuesday Night Tuesday Night... A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.

30% chance of rain Wednesday Wednesday... A chance of rain. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.

Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:43 AM
Sunset: 5:02 PM
Civil Sunrise:07:12 AM
Civil Sunset: 5:33 PM
Nautical Sunrise: 06:38 AM
Nautical Sunset: 6:07 PM
Astro Sunrise: 06:04 AM
Astro Sunset: 6:40 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.