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

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Light Rain

62°F

17°C

Humidity 96%
Wind Speed Calm
Barometer 29.88 in (1011.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 5 Nov 3:53 am EST
Extended Forecast for

Mechanicsville PA

  • Overnight

    Overnight: Rain. Low around 61. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Rain

  • Thursday

    Thursday: Rain, mainly before 9am. High near 72. South wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 72 °F

    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 66. Light and variable wind.

    High: 66 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Calm wind becoming west around 5 mph after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain, mainly after 1pm. Partly sunny, with a high near 53. Chance of precipitation is 30%.

    High: 53 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain. Low around 61. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, mainly before 9am. High near 72. South wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 52. Light and variable wind.
Friday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 66. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 44. Calm wind becoming west around 5 mph after midnight.
Saturday
A chance of rain, mainly after 1pm. Partly sunny, with a high near 53. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 35.
Veterans Day
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsville PA
 40.98°N 76.6°W (Elev. 968 ft)
Last Update:
1:21 am EST Nov 5, 2026
Forecast Valid:
4am EST Nov 5, 2026-6pm EST Nov 11, 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