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Arnold, Pennsylvania Weather Forecast
Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 12:18 am EST Nov 25, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thanksgiving Day Friday Saturday Sunday Monday
100% chance of rain on Today 70% chance of rain on Tonight 90% chance of rain on Wednesday Mostly Cloudy on Thanksgiving Day 30% chance of snow on Friday Mostly Cloudy on Saturday 40% chance of rain on Sunday 50% chance of rain on Monday
High: 57°F Low: 50°F High: 55 °F High: 36°F High: 35°F High: 36°F High: 44°F High: 45°F
Low: 28°F Low: 24°F Low: 22°F Low: 26°F Low: 28°F  
Rain Rain Rain Mostly Cloudy Snow Mostly Cloudy Rain Rain
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Current Conditions at
BUTLER COUNTY - (KBTP)
48°
Cloudy
Light Rain
as of 5:56 AM EST
Rel. Humidity: 53%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
6 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 7000ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
45°
Cloudy
as of 5:53 AM EST
Rel. Humidity: 61%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
8 MPH
160° South
Cloud Level(s): Solid Overcast at 8500ft
Current Conditions at
PITTSBURGH - (KPIT)
46°
Cloudy
Light Rain
as of 5:51 AM EST
Rel. Humidity: 61%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
5 MPH
160° South
Cloud Level(s): Solid Overcast at 8000ft
Current Conditions at
LATROBE - (KLBE)
48°
Mostly Cloudy
as of 6:15 AM EST
Rel. Humidity: 61%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 5500ft, Broken at 6500ft, Broken at 8500ft
100% chance of rain Today Today... Rain, mainly before 5pm. High near 57. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
70% chance of rain Tonight Tonight... Rain likely. Cloudy, with a low around 50. South wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
90% chance of rain Wednesday Wednesday... Rain, mainly between 7am and 1pm. Temperature rising to near 55 by 10am, then falling to around 44 during the remainder of the day. Breezy, with a southwest wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
20% chance of snow Wednesday Night Wednesday Night... Isolated snow showers. Mostly cloudy, with a low around 28. West wind 16 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Mostly Cloudy on Thanksgiving Day Thanksgiving Day... Mostly cloudy, with a high near 36. Breezy, with a west wind 18 to 21 mph, with gusts as high as 31 mph.
40% chance of snow Thursday Night Thursday Night... Scattered snow showers. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
30% chance of snow Friday Friday... Scattered snow showers before 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 22.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 36.
40% chance of snow Saturday Night Saturday Night... A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
40% chance of rain Sunday Sunday... A chance of rain. Cloudy, with a high near 44. Chance of precipitation is 40%.
50% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
50% chance of rain Monday Monday... A chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:18 AM
Sunset: 4:55 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:25 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:58 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:31 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.