url:
Big Mountain, Pennsylvania Weather Forecast
Big Mountain, Pennsylvania Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

No Watches or Warnings for Big Mountain
Change location by the zip code or city,state: or search for other weather forecast locations in Pennsylvania by name.
Weather Forecast for Big Mountain, Pennsylvania : Northumberland County
Issued: 1:05 pm EST Jan 7, 2026 Latitude: 40.7706413 Longitude: -76.5335692 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Mostly Cloudy on This Afternoon Mostly Cloudy on Tonight Mostly Sunny on Thursday 60% chance of rain on Friday 90% chance of rain on Saturday Partly Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday
High: 43°F Low: 33°F High: 44°F High: 50°F High: 54°F High: 41°F High: 35°F High: 39°F
Low: 34°F Low: 45°F Low: 37°F Low: 25°F Low: 25°F  
Mostly Cloudy Mostly Cloudy Mostly Sunny Rain Rain Partly Sunny Sunny Partly Sunny
-
Current Conditions at
SELINSGROVE - (KSEG)
48°
Feels like 44°F
Cloudy
as of 1:22 PM EST
Rel. Humidity: 66%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: MVFR
Wind Data
9 MPH
310° Northwest
Cloud Level(s): Broken at 3000ft, Solid Overcast at 6000ft
Current Conditions at
MUIR AAF - (KMUI)
52°
Cloudy
as of 12:55 PM EST
Rel. Humidity: 71%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: MVFR
Wind Data
7 MPH
250° West
Cloud Level(s): Solid Overcast at 3000ft
Current Conditions at
WILLIAMSPORT - (KIPT)
45°
Cloudy
as of 12:54 PM EST
Rel. Humidity: 75%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: MVFR
Wind Data
6 MPH
280° West
Cloud Level(s): Solid Overcast at 2600ft
Current Conditions at
READING - (KRDG)
52°
Cloudy
as of 12:54 PM EST
Rel. Humidity: 57%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
10 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 3400ft
Mostly Cloudy on This Afternoon This Afternoon... Mostly cloudy, with a high near 43. Northwest wind around 9 mph, with gusts as high as 20 mph.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 33. Northwest wind 3 to 5 mph.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 44. Calm wind.

Increasing Clouds on Thursday Night Thursday Night... Increasing clouds, with a low around 34. Calm wind becoming southeast around 5 mph after midnight.

60% chance of rain Friday Friday... Rain likely, mainly after 1pm. Mostly cloudy, with a high near 50. South wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

40% chance of rain Friday Night Friday Night... A chance of rain. Cloudy, with a low around 45. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

90% chance of rain Saturday Saturday... Rain. High near 54. Chance of precipitation is 90%.

50% chance of rain Saturday Night Saturday Night... A chance of rain before 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 41.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 25.

Sunny on Monday Monday... Sunny, with a high near 35.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 25.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 39.

Current Radar Image


Sun Almanac for Big Mountain, Pennsylvania
Sunrise: 07:30 AM
Sunset: 4:55 PM
Civil Sunrise:07:00 AM
Civil Sunset: 5:25 PM
Nautical Sunrise: 06:26 AM
Nautical Sunset: 5:59 PM
Astro Sunrise: 05:52 AM
Astro Sunset: 6:33 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.