Severe Thunderstorms with Tornadoes and Heavy Rain Threat shifts East for Tuesday

Severe thunderstorms are forecast to develop from the mid-Mississippi River Valley south into the ArkLaTex on Tuesday. These storms can bring large hail, damaging winds, a few tornadoes and flash flooding. Residents should heed any warnings issued and follow local forecast office social media pages for updates. Read More >

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Overcast

63°F

17°C

Humidity 54%
Wind Speed NW 9 G 26 mph
Barometer 29.94 in (1013.4 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 May 11:53 pm EDT
Extended Forecast for

Herndon PA

  • Overnight

    Overnight: Partly cloudy, with a low around 50. Northwest wind around 8 mph.

    Partly Cloudy

    Low: 50 °F

  • Tuesday

    Tuesday: Sunny, with a high near 70. Northwest wind around 11 mph, with gusts as high as 20 mph.

    Sunny

    High: 70 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 47. North wind 3 to 7 mph.

    Mostly Clear

    Low: 47 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Light and variable wind.

    Mostly Sunny

    High: 73 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers.  Mostly cloudy, with a low around 56. Calm wind.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    Low: 56 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms.  Partly sunny, with a high near 79. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 79 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

    Chance
    T-storms

    Low: 63 °F

  • Friday

    Friday: Mostly sunny, with a high near 80.

    Mostly Sunny

    High: 80 °F

  • Friday
    Night

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

    Partly Cloudy

    Low: 60 °F

Detailed Forecast

Overnight
Partly cloudy, with a low around 50. Northwest wind around 8 mph.
Tuesday
Sunny, with a high near 70. Northwest wind around 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 47. North wind 3 to 7 mph.
Wednesday
Mostly sunny, with a high near 73. Light and variable wind.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 60.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Click Map For Forecast
Point Forecast:
Herndon PA
 40.72°N 76.85°W (Elev. 397 ft)
10:18 pm EDT May 20, 2019
12am EDT May 21, 2019-6pm EDT May 26, 2019
 
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Additional Resources

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National Digital Forecast Database