McWilliams, Pennsylvania Weather
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Weather Forecast for McWilliams, Pennsylvania : Armstrong County
Issued: 10:03 am EDT Sep 3, 2025 Latitude: 40.9658991 Longitude: -79.2519833 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
Sunny on Today Mostly Clear on Tonight 100% chance of thunderstorms on Thursday Mostly Sunny on Friday 40% chance of rain on Saturday Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday
High: 80°F Low: 58°F High: 70°F High: 78°F High: 68°F High: 68°F High: 71°F High: 73°F
Low: 53°F Low: 54°F Low: 45°F Low: 43°F Low: 47°F  
Sunny Mostly Clear Thunderstorms Mostly Sunny Rain Sunny Sunny Mostly Sunny
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Current Conditions at
DUBOIS - (KDUJ)
64°
Clear
as of 9:53 AM EDST
Rel. Humidity: 59%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
5 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
STEWART FIELD - (KIDI)
68°
Clear
as of 9:55 AM EDST
Rel. Humidity: 60%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
5 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
BUTLER COUNTY - (KBTP)
66°
Clear
as of 9:56 AM EDST
Rel. Humidity: 63%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
8 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
FRANKLIN - (KFKL)
66°
Mostly Clear
as of 9:56 AM EDST
Rel. Humidity: 59%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
6 MPH
190° South
Cloud Level(s): Few at 7000ft
Sunny on Today Today... Sunny, with a high near 80. Southwest wind 3 to 7 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 58. South wind around 6 mph.
100% chance of thunderstorms Thursday Thursday... Showers, with thunderstorms also possible after 11am. High near 70. South wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
30% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 78. Southwest wind 6 to 13 mph, with gusts as high as 25 mph.
40% chance of thunderstorms Friday Night Friday Night... A slight chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 54. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
40% chance of rain Saturday Saturday... A chance of showers before 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 45.
Sunny on Sunday Sunday... Sunny, with a high near 68.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 43.
Sunny on Monday Monday... Sunny, with a high near 71.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 47.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 73.
Current Radar Image


Sun Almanac for McWilliams, Pennsylvania
Sunrise: 06:46 AM
Sunset: 7:46 PM
Civil Sunrise:06:18 AM
Civil Sunset: 8:14 PM
Nautical Sunrise: 05:45 AM
Nautical Sunset: 8:48 PM
Astro Sunrise: 05:10 AM
Astro Sunset: 9:22 PM
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