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/Mist

49°F

9°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.78 in (1008.5 mb)
Dewpoint 49°F (9°C)
Visibility 4.00 mi
Wind Chill47°F (8°C)
Last update 8 Mar 6:53 am EDT
Extended Forecast for

Millersburg PA

Dense Fog Advisory March 8, 07:29am until March 8, 08:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory March 8, 07:29am until March 8, 08:00am

    NOW until 8:00am Sun

    Dense Fog Advisory

  • Today

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. Light south wind.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 42. Calm wind.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers, mainly after 2am. Low around 47. Chance of precipitation is 80%.

    Low: 47 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 63. South wind 5 to 9 mph becoming west in the morning. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 40. Light south wind.
Monday
Sunny, with a high near 67. Calm wind becoming south 5 to 8 mph in the afternoon.
Monday Night
Clear, with a low around 42. Calm wind.
Tuesday
Sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Wednesday Night
Showers, mainly after 2am. Low around 47. Chance of precipitation is 80%.
Thursday
Rain, possibly mixed with snow showers, mainly before 8am. High near 50. Breezy. Chance of precipitation is 80%.
Thursday Night
Mostly clear, with a low around 28.
Friday
A chance of showers. Partly sunny, with a high near 49. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Millersburg PA
 40.55°N 76.94°W (Elev. 525 ft)
Last Update:
6:11 am EDT Mar 8, 2026
Forecast Valid:
7am EDT Mar 8, 2026-6pm EDT Mar 14, 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