National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fog

55°F

13°C

Humidity 96%
Wind Speed Calm
Barometer 30.16 in (1021.0 mb)
Dewpoint 54°F (12°C)
Visibility 0.25 mi
Last update 26 May 6:53 am EDT
Extended Forecast for

Sunbury PA

Dense Fog Advisory until May 26, 08:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until May 26, 08:00am

    NOW until 8:00am Tue

    Dense Fog Advisory

  • Today

    High: 81 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: Scattered showers after 3am. Cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly before 7am. Mostly cloudy, with a high near 82. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 82 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 75. North wind 7 to 11 mph, with gusts as high as 24 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Today
Areas of dense fog before 10am. Otherwise, partly sunny, with a high near 81. Calm wind.
Tonight
Scattered showers after 3am. Cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Scattered showers, mainly before 7am. Mostly cloudy, with a high near 82. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 59. Calm wind.
Thursday
Sunny, with a high near 75. North wind 7 to 11 mph, with gusts as high as 24 mph.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sunbury PA
 40.87°N 76.79°W (Elev. 482 ft)
Last Update:
3:31 am EDT May 26, 2026
Forecast Valid:
7am EDT May 26, 2026-6pm EDT Jun 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation