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Boston, Pennsylvania Weather Forecast
Boston, Pennsylvania Weather
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Weather Forecast for Boston, Pennsylvania : Allegheny County
Issued: 2:23 pm EST Jan 8, 2026 Latitude: 40.3120141 Longitude: -79.8231024 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Partly Sunny on This Afternoon Partly Cloudy on Tonight 80% chance of rain on Friday 90% chance of rain on Saturday 70% chance of snow on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday 60% chance of rain on Wednesday
High: 56°F Low: 45°F High: 63°F High: 55°F High: 38°F High: 38°F High: 45°F High: 43°F
Low: 41°F Low: 32°F Low: 25°F Low: 29°F Low: 33°F  
Partly Sunny Partly Cloudy Rain Rain Snow Partly Sunny Mostly Sunny Rain
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Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
54°
Clear
as of 3:53 PM EST
Rel. Humidity: 46%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
5 MPH
140° Southeast
Cloud Level(s): Clear
Current Conditions at
LATROBE - (KLBE)
55°
Mostly Cloudy
as of 3:47 PM EST
Rel. Humidity: 54%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
5 MPH
Cloud Level(s): Broken at 7000ft
Current Conditions at
PITTSBURGH - (KPIT)
54°
Mostly Cloudy
as of 3:51 PM EST
Rel. Humidity: 46%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
6 MPH
140° Southeast
Cloud Level(s): Scattered at 14000ft, Broken at 25000ft
Current Conditions at
BUTLER COUNTY - (KBTP)
Mostly Cloudy
as of 3:56 PM EST
Wind Data
Calm
Partly Sunny on This Afternoon This Afternoon... Partly sunny, with a high near 56. Southeast wind around 5 mph.
Partly Cloudy on Tonight Tonight... Cloudy, then gradually becoming partly cloudy, with a low around 45. Southeast wind 7 to 9 mph.
80% chance of rain Friday Friday... Rain, mainly after 8am. High near 63. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
40% chance of rain Friday Night Friday Night... A chance of rain. Cloudy, with a low around 41. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
90% chance of rain Saturday Saturday... Rain. High near 55. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
70% chance of rain & snow Saturday Night Saturday Night... Rain showers likely before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Mostly cloudy, with a low around 32. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
70% chance of snow Sunday Sunday... Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.
30% chance of snow Sunday Night Sunday Night... A chance of snow showers before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Partly Sunny on Monday Monday... Partly sunny, with a high near 38.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 29.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 45.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 33.
60% chance of rain Wednesday Wednesday... Showers likely. Mostly cloudy, with a high near 43. Chance of precipitation is 60%.
Current Radar Image


Sun Almanac for Boston, Pennsylvania
Sunrise: 07:42 AM
Sunset: 5:10 PM
Civil Sunrise:07:12 AM
Civil Sunset: 5:40 PM
Nautical Sunrise: 06:38 AM
Nautical Sunset: 6:14 PM
Astro Sunrise: 06:05 AM
Astro Sunset: 6:47 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.