Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

47°F

8°C

Humidity 80%
Wind Speed Calm
Barometer 29.95 in (1014.4 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 15 May 6:53 am EDT
Extended Forecast for

Mechanicsville PA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 69. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.

    High: 69 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 80. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly before 2am.  Mostly cloudy, with a low around 60. Light southwest wind.  Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers.  Mostly sunny, with a high near 85. Light west wind.  Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 69. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind.
Saturday
Sunny, with a high near 80. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Saturday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 60. Light southwest wind. Chance of precipitation is 40%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 85. Light west wind. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Showers likely. Partly sunny, with a high near 86. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsville PA
 40.96°N 76.6°W (Elev. 499 ft)
2:39 am EDT May 15, 2026
7am EDT May 15, 2026-6pm EDT May 21, 2026
 
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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