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Big Run, Pennsylvania Weather Forecast
Big Run, Pennsylvania Weather
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Weather Forecast for Big Run, Pennsylvania : Dauphin County
Issued: 7:34 am EST Jan 9, 2026 Latitude: 40.5706411 Longitude: -76.7438566 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
70% chance of rain on Today Cloudy on Tonight 90% chance of rain on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Thursday
High: 50°F Low: 37°F High: 42°F High: 39°F High: 37°F High: 43°F High: 43°F High: 34°F
Low: 35°F Low: 26°F Low: 27°F Low: 31°F Low: 26°F  
Rain Cloudy Rain Mostly Sunny Mostly Sunny Partly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
MUIR AAF - (KMUI)
41°
Cloudy
as of 9:55 AM EST
Rel. Humidity: 100%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 900ft
Current Conditions at
SELINSGROVE - (KSEG)
45°
Feels like 38°F
Cloudy
as of 9:53 AM EST
Rel. Humidity: 75%
Dew Point: 37°F
Visibility: 9 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 22 MPH
180° South
Cloud Level(s): Solid Overcast at 3800ft
Current Conditions at
HARRISBURG - (KCXY)
43°
Cloudy
Mist
as of 9:56 AM EST
Rel. Humidity: 86%
Dew Point: 39°F
Visibility: 2 Miles
Pressure: 30.19 in.
Flight Rule: IFR
Wind Data
7 MPH
090° East
Cloud Level(s): Solid Overcast at 1200ft
Current Conditions at
LANCASTER - (KLNS)
45°
Feels like 39°F
Mostly Cloudy
as of 9:53 AM EST
Rel. Humidity: 75%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
9 MPH
160° South
Cloud Level(s): Broken at 3800ft
70% chance of rain Today Today... Rain likely, mainly between noon and 5pm. Mostly cloudy, with a high near 50. South wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Cloudy on Tonight Tonight... Cloudy, with a low around 37. South wind 5 to 7 mph becoming north after midnight.

90% chance of rain Saturday Saturday... Rain, mainly after 1pm. High near 42. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

60% chance of rain Saturday Night Saturday Night... Rain likely before 1am, then a slight chance of showers after 1am. Cloudy, with a low around 35. Light and variable wind becoming west 5 to 8 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 39. West wind 9 to 17 mph, with gusts as high as 41 mph.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 26.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 37.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 27.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 43.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 31.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 43.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 26.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 34.

Current Radar Image


Sun Almanac for Big Run, Pennsylvania
Sunrise: 07:30 AM
Sunset: 4:58 PM
Civil Sunrise:07:00 AM
Civil Sunset: 5:29 PM
Nautical Sunrise: 06:26 AM
Nautical Sunset: 6:02 PM
Astro Sunrise: 05:53 AM
Astro Sunset: 6:35 PM
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