Arnold, Pennsylvania Weather
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Weather Forecast for Arnold, Pennsylvania : Westmoreland County
Issued: 12:32 pm EDT Oct 15, 2025 Latitude: 40.5800669 Longitude: -79.7667152 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Mostly Sunny on This Afternoon Clear on Tonight Sunny on Thursday Sunny on Friday Mostly Sunny on Saturday 80% chance of rain on Sunday 40% chance of on Monday Mostly Sunny on Tuesday
High: 68°F Low: 36°F High: 64°F High: 65°F High: 74°F High: 74°F High: 61°F High: 65°F
Low: 33°F Low: 41°F Low: 53°F Low: 46°F Low: 43°F  
Mostly Sunny Clear Sunny Sunny Mostly Sunny Rain Partly Sunny Mostly Sunny
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Current Conditions at
BUTLER COUNTY - (KBTP)
63°
Mostly Cloudy
as of 1:56 PM EDST
Rel. Humidity: 55%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 17 MPH
330° Northwest
Cloud Level(s): Few at 3200ft, Broken at 7500ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
64°
Mostly Clear
as of 1:53 PM EDST
Rel. Humidity: 48%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
9 MPH
300° Northwest
Cloud Level(s): Few at 11000ft
Current Conditions at
PITTSBURGH - (KPIT)
63°
Partly Cloudy
as of 1:51 PM EDST
Rel. Humidity: 51%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
8 MPH
Gust: 18 MPH
300° Northwest
Cloud Level(s): Few at 3600ft, Scattered at 11000ft, Scattered at 20000ft
Current Conditions at
LATROBE - (KLBE)
64°
Mostly Clear
as of 1:48 PM EDST
Rel. Humidity: 59%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
7 MPH
250° West
Cloud Level(s): Few at 6000ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 68. Northwest wind around 10 mph.
Clear on Tonight Tonight... Clear, with a low around 36. North wind 5 to 9 mph becoming calm after midnight.
Sunny on Thursday Thursday... Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 64. Light northwest wind increasing to 5 to 10 mph in the morning.
Clear on Thursday Night Thursday Night... Areas of frost after 4am. Otherwise, clear, with a low around 33. North wind around 6 mph becoming calm in the evening.
Sunny on Friday Friday... Areas of frost before 9am. Otherwise, sunny, with a high near 65. Calm wind.
20% chance of rain Friday Night Friday Night... A slight chance of showers after 2am. Partly cloudy, with a low around 41. Chance of precipitation is 20%.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 74.
40% chance of rain Saturday Night Saturday Night... A chance of showers after 2am. Partly cloudy, with a low around 53. Chance of precipitation is 40%.
80% chance of rain Sunday Sunday... Showers, mainly after 2pm. High near 74. Chance of precipitation is 80%.
80% chance of rain Sunday Night Sunday Night... Showers. Low around 46. Chance of precipitation is 80%.
40% chance of Monday Monday... A chance of showers. Partly sunny, with a high near 61. Chance of precipitation is 40%.
30% chance of rain Monday Night Monday Night... A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 65.
Current Radar Image


Sun Almanac for Arnold, Pennsylvania
Sunrise: 07:31 AM
Sunset: 6:39 PM
Civil Sunrise:07:03 AM
Civil Sunset: 7:06 PM
Nautical Sunrise: 06:32 AM
Nautical Sunset: 7:38 PM
Astro Sunrise: 06:00 AM
Astro Sunset: 8:10 PM
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