Big Run, Pennsylvania Weather
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Weather Forecast for Big Run, Pennsylvania : Dauphin County
Issued: 2:47 am EDT Sep 5, 2025 Latitude: 40.5706411 Longitude: -76.7438566 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Fog on Overnight Morning Fog on Friday 80% chance of thunderstorms on Saturday Mostly Sunny on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday
Low: 60°F High: 84°F High: 77°F High: 73°F High: 71°F High: 73°F High: 74°F High: 77°F
Low: 63°F Low: 53°F Low: 46°F Low: 46°F Low: 48°F Low: 51°F  
Fog Morning Fog Thunderstorms Mostly Sunny Sunny Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
MUIR AAF - (KMUI)
63°
Partly Cloudy
Mist
as of 3:11 AM EDST
Rel. Humidity: 93%
Dew Point: 61°F
Visibility: 3 Miles
Pressure: 29.84 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Scattered at 8000ft
Current Conditions at
SELINSGROVE - (KSEG)
61°
Mostly Cloudy
Mist
as of 3:18 AM EDST
Rel. Humidity: 100%
Dew Point: 61°F
Visibility: 1 1/4 Miles
Pressure: 29.87 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Few at 100ft, Scattered at 7000ft, Broken at 9000ft
Current Conditions at
HARRISBURG - (KCXY)
63°
Clear
as of 2:56 AM EDST
Rel. Humidity: 100%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
LANCASTER - (KLNS)
66°
Mostly Cloudy
Mist
as of 2:53 AM EDST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 3 Miles
Pressure: 29.85 in.
Flight Rule: MVFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Broken at 1600ft
Fog on Overnight Overnight... Areas of fog. Otherwise, mostly cloudy, with a low around 60. Calm wind.
Morning Fog on Friday Friday... Areas of fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 84. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
20% chance of rain Friday Night Friday Night... A slight chance of showers between 2am and 3am. Partly cloudy, with a low around 63. South wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.
80% chance of thunderstorms Saturday Saturday... A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 77. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
80% chance of thunderstorms Saturday Night Saturday Night... Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 53. Northwest wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 73.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 46.
Sunny on Monday Monday... Sunny, with a high near 71.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 46.
Sunny on Tuesday Tuesday... Sunny, with a high near 73.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 48.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 74.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 51.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 77.
Current Radar Image


Sun Almanac for Big Run, Pennsylvania
Sunrise: 06:39 AM
Sunset: 7:32 PM
Civil Sunrise:06:11 AM
Civil Sunset: 8:00 PM
Nautical Sunrise: 05:38 AM
Nautical Sunset: 8:33 PM
Astro Sunrise: 05:04 AM
Astro Sunset: 9:07 PM
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