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Williamsburg, Pennsylvania Weather Forecast
Williamsburg, Pennsylvania Weather
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Weather Forecast for Williamsburg, Pennsylvania : Armstrong County
Issued: 11:56 am EST Dec 7, 2025 Latitude: 40.8100642 Longitude: -79.5231005 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of snow on This Afternoon Partly Cloudy on Tonight Mostly Sunny on Monday 30% chance of snow on Tuesday 100% chance of rain on Wednesday 50% chance of snow on Thursday 50% chance of snow on Friday 60% chance of snow on Saturday
High: 37°F Low: 14°F High: 27°F High: 37°F High: 43°F High: 33°F High: 31°F High: 25°F
Low: 10°F Low: 30°F Low: 25°F Low: 18°F Low: 12°F  
Snow Partly Cloudy Mostly Sunny Snow Rain Snow Snow Snow
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Current Conditions at
BUTLER COUNTY - (KBTP)
36°
Cloudy
as of 11:56 AM EST
Rel. Humidity: 74%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: MVFR
Wind Data
6 MPH
200° South
Cloud Level(s): Solid Overcast at 2900ft
Current Conditions at
STEWART FIELD - (KIDI)
34°
Feels like 26°F
Cloudy
as of 12:15 PM EST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: MVFR
Wind Data
9 MPH
230° Southwest
Cloud Level(s): Solid Overcast at 2700ft
Current Conditions at
LATROBE - (KLBE)
36°
Feels like 28°F
Cloudy
as of 11:47 AM EST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: MVFR
Wind Data
9 MPH
220° Southwest
Cloud Level(s): Solid Overcast at 2900ft
Current Conditions at
JOHNSTOWN - (KJST)
30°
Cloudy
as of 11:54 AM EST
Rel. Humidity: 80%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: MVFR
Wind Data
8 MPH
240° Southwest
Cloud Level(s): Solid Overcast at 1800ft
20% chance of snow This Afternoon This Afternoon... A slight chance of snow before 2pm, then a slight chance of snow after 3pm. Cloudy, with a high near 37. Southwest wind around 7 mph. Chance of precipitation is 20%.
Partly Cloudy on Tonight Tonight... Cloudy, then gradually becoming partly cloudy, with a low around 14. Light and variable wind becoming north around 5 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 27. Northeast wind 3 to 6 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 10. Calm wind.
30% chance of snow Tuesday Tuesday... A chance of snow after 1pm. Mostly cloudy, with a high near 37. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
60% chance of rain & snow Tuesday Night Tuesday Night... Rain likely, possibly mixed with snow, mainly after 1am. Cloudy, with a low around 30. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
100% chance of rain Wednesday Wednesday... Rain. High near 43. Chance of precipitation is 100%.
80% chance of snow Wednesday Night Wednesday Night... Snow, mainly before 1am. Low around 25. Chance of precipitation is 80%.
50% chance of snow Thursday Thursday... A chance of snow. Mostly cloudy, with a high near 33. Chance of precipitation is 50%.
60% chance of snow Thursday Night Thursday Night... Snow likely, mainly before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
50% chance of snow Friday Friday... A chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 50%.
60% chance of snow Friday Night Friday Night... Snow likely. Mostly cloudy, with a low around 12. Chance of precipitation is 60%.
60% chance of snow Saturday Saturday... Snow likely. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.
Current Radar Image


Sun Almanac for Williamsburg, Pennsylvania
Sunrise: 07:29 AM
Sunset: 4:50 PM
Civil Sunrise:06:59 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:24 AM
Nautical Sunset: 5:55 PM
Astro Sunrise: 05:51 AM
Astro Sunset: 6:28 PM
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