Big Run, Pennsylvania Weather
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Weather Forecast for Big Run, Pennsylvania : Jefferson County
Issued: 1:20 am EDT Sep 5, 2025 Latitude: 40.9670078 Longitude: -78.8783657 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Fog on Overnight Morning Fog on Friday 70% chance of rain on Saturday Mostly Sunny on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday
Low: 52°F High: 80°F High: 66°F High: 67°F High: 69°F High: 73°F High: 76°F High: 74°F
Low: 54°F Low: 46°F Low: 41°F Low: 44°F Low: 48°F Low: 51°F  
Fog Morning Fog Rain Mostly Sunny Sunny Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
DUBOIS - (KDUJ)
54°
Mostly Cloudy
Fog
as of 2:53 AM EDST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 1/4 Miles
Pressure: 29.88 in.
Flight Rule: IFR
Wind Data
5 MPH
110° East
Current Conditions at
CLEARFIELD - (KFIG)
52°
Clear
Fog
as of 2:54 AM EDST
Rel. Humidity: 100%
Dew Point: 52°F
Visibility: 1/4 Miles
Pressure: 29.90 in.
Flight Rule: IFR
Wind Data
Calm
Current Conditions at
STEWART FIELD - (KIDI)
52°
Cloudy
Fog
as of 3:15 AM EDST
Rel. Humidity: 100%
Dew Point: 52°F
Visibility: Less than 1/4 Miles
Pressure: 29.88 in.
Flight Rule: LIFR
Wind Data
3 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
JOHNSTOWN - (KJST)
55°
Cloudy
Mist
as of 3:14 AM EDST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 2 Miles
Pressure: 29.90 in.
Flight Rule: LIFR
Wind Data
7 MPH
170° South
Cloud Level(s): Solid Overcast at 200ft
Fog on Overnight Overnight... Widespread dense fog. Otherwise, mostly cloudy, with a low around 52. Calm wind.
Morning Fog on Friday Friday... Areas of dense fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 6 to 14 mph, with gusts as high as 25 mph.
70% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall. Increasing clouds, with a low around 54. South wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
70% chance of rain Saturday Saturday... Showers likely, mainly between 8am and 2pm. Cloudy, with a high near 66. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
30% chance of rain Saturday Night Saturday Night... A chance of showers before 8pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 46. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 67.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 41.
Sunny on Monday Monday... Sunny, with a high near 69.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 44.
Sunny on Tuesday Tuesday... Sunny, with a high near 73.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 48.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 76.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 51.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 74.
Current Radar Image


Sun Almanac for Big Run, Pennsylvania
Sunrise: 06:47 AM
Sunset: 7:41 PM
Civil Sunrise:06:19 AM
Civil Sunset: 8:09 PM
Nautical Sunrise: 05:46 AM
Nautical Sunset: 8:43 PM
Astro Sunrise: 05:11 AM
Astro Sunset: 9:17 PM
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