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McMillan, Pennsylvania Weather Forecast
McMillan, Pennsylvania Weather
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Weather Forecast for McMillan, Pennsylvania : Washington County
Issued: 8:49 pm EST Dec 15, 2025 Latitude: 40.1328504 Longitude: -80.4464561 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Mostly Cloudy on Tonight Increasing Clouds on Tuesday Mostly Cloudy on Wednesday 50% chance of rain on Thursday Mostly Cloudy on Friday Partly Sunny on Saturday Partly Sunny on Sunday 30% chance of rain on Monday
Low: 12°F High: 34°F High: 42°F High: 52°F High: 31°F High: 45°F High: 42°F High: 43°F
Low: 28°F Low: 28°F Low: 25°F Low: 20°F Low: 33°F Low: 27°F  
Mostly Cloudy Increasing Clouds Mostly Cloudy Rain Mostly Cloudy Partly Sunny Partly Sunny Rain
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Current Conditions at
WASHINGTON - (KAFJ)
19°
Cloudy
as of 9:56 PM EST
Rel. Humidity: 62%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
3 MPH
230° Southwest
Cloud Level(s): Solid Overcast at 6000ft
Current Conditions at
WHEELING - (KHLG)
18°
Mostly Cloudy
as of 9:53 PM EST
Rel. Humidity: 67%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
5 MPH
240° Southwest
Cloud Level(s): Broken at 5500ft
Current Conditions at
PITTSBURGH - (KPIT)
18°
Cloudy
as of 9:51 PM EST
Rel. Humidity: 61%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
5 MPH
240° Southwest
Cloud Level(s): Solid Overcast at 6000ft
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
18°
Cloudy
as of 9:53 PM EST
Rel. Humidity: 67%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
3 MPH
240° Southwest
Cloud Level(s): Solid Overcast at 6000ft
Mostly Cloudy on Tonight Tonight... Mostly cloudy, then gradually becoming clear, with a low around 12. Southwest wind 5 to 7 mph.
Increasing Clouds on Tuesday Tuesday... Increasing clouds, with a high near 34. South wind 6 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 28. Southwest wind 8 to 14 mph, with gusts as high as 26 mph.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 42. Southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 28. Southwest wind 5 to 7 mph becoming south after midnight.
50% chance of rain Thursday Thursday... A chance of rain after 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
100% chance of rain & snow Thursday Night Thursday Night... Rain before 1am, then a chance of rain and snow. Low around 25. Chance of precipitation is 100%.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 31.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 20.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 45.
30% chance of rain Saturday Night Saturday Night... A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 42.
30% chance of freezing rain Sunday Night Sunday Night... A chance of rain or freezing rain. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
30% chance of rain Monday Monday... A chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Current Radar Image


Sun Almanac for McMillan, Pennsylvania
Sunrise: 07:37 AM
Sunset: 4:57 PM
Civil Sunrise:07:07 AM
Civil Sunset: 5:28 PM
Nautical Sunrise: 06:32 AM
Nautical Sunset: 6:02 PM
Astro Sunrise: 05:59 AM
Astro Sunset: 6:35 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.