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Alcoa Center, Pennsylvania Weather Forecast
Alcoa Center, Pennsylvania Weather
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Weather Forecast for Alcoa Center, Pennsylvania : Westmoreland County
Issued: 6:28 pm EST Dec 18, 2025 Latitude: 40.5384 Longitude: -79.6450454 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Christmas Day
100% chance of rain on Tonight 70% chance of rain & snow on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday 50% chance of rain on Tuesday Mostly Cloudy on Wednesday 50% chance of rain on Christmas Day
Low: 37°F High: 24 °F High: 44°F High: 33°F High: 33°F High: 43°F High: 44°F High: 52°F
Low: 18°F Low: 29°F Low: 18°F Low: 25°F Low: 33°F Low: 36°F  
Rain Rain & Snow Partly Sunny Mostly Sunny Mostly Sunny Rain Mostly Cloudy Rain
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Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
54°
Cloudy
Light Rain
as of 5:53 PM EST
Rel. Humidity: 50%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
15 MPH
160° South
Cloud Level(s): Few at 6000ft, Broken at 8500ft, Solid Overcast at 11000ft
Current Conditions at
LATROBE - (KLBE)
54°
Mostly Cloudy
Light Rain
as of 5:47 PM EST
Rel. Humidity: 54%
Dew Point: 37°F
Visibility: 7 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
20 MPH
140° Southeast
Cloud Level(s): Broken at 4400ft, Broken at 6000ft
Current Conditions at
BUTLER COUNTY - (KBTP)
52°
Cloudy
Light Rain
as of 5:56 PM EST
Rel. Humidity: 50%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
8 MPH
130° Southeast
Cloud Level(s): Broken at 7000ft, Solid Overcast at 9000ft
Current Conditions at
STEWART FIELD - (KIDI)
48°
Feels like 42°F
Cloudy
as of 6:15 PM EST
Rel. Humidity: 66%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 24 MPH
140° Southeast
Cloud Level(s): Few at 4800ft, Scattered at 5500ft, Solid Overcast at 7000ft
100% chance of rain Tonight Tonight... Rain. Low around 37. Southeast wind 13 to 18 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

70% chance of rain & snow Friday Friday... Rain likely before 9am, then a chance of snow showers. Mostly cloudy, with a temperature falling to around 24 by 4pm. Breezy, with a west wind 18 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Partly Cloudy on Friday Night Friday Night... Cloudy, then gradually becoming partly cloudy, with a low around 18. Breezy, with a west wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 33 mph.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 44. South wind 7 to 10 mph.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 29. South wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 33.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 18.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 33.

40% chance of rain & snow Monday Night Monday Night... A chance of rain and snow after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.

50% chance of rain Tuesday Tuesday... A chance of rain. Cloudy, with a high near 43. Chance of precipitation is 50%.

30% chance of rain Tuesday Night Tuesday Night... A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 44.

50% chance of rain Wednesday Night Wednesday Night... A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.

50% chance of rain Christmas Day Christmas Day... A chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 50%.

Current Radar Image


Sun Almanac for Alcoa Center, Pennsylvania
Sunrise: 07:37 AM
Sunset: 4:54 PM
Civil Sunrise:07:06 AM
Civil Sunset: 5:24 PM
Nautical Sunrise: 06:32 AM
Nautical Sunset: 5:59 PM
Astro Sunrise: 05:59 AM
Astro Sunset: 6:32 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.