Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Severe Thunderstorms over the Plains, Heavy Rain Threat Continues over Portions of the Mississippi Valley

Heavy rainfall with localized flooding will remain possible over portions of the Mississippi Valley and the Plains through midweek. In addition, severe thunderstorms will be possible over the southern and central Plains. Some of the storms could contain damaging winds and large hail. Read More >

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

69°F

21°C

Humidity 78%
Wind Speed Calm
Barometer 30.03 in (1016.8 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 16 Aug 10:56 pm EDT
Extended Forecast for

Duncannon PA

  • Overnight

    Overnight: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 62. Calm wind.

    Patchy Fog

    Low: 62 °F

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 11am.  Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.  Chance of precipitation is 20%.

    Slight Chance
    T-storms and
    Patchy Fog

    High: 84 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. South wind around 6 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    Low: 69 °F

  • Friday

    Friday: Showers and thunderstorms likely.  Partly sunny, with a high near 87. Southwest wind around 6 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely

    High: 87 °F

  • Friday
    Night

    Friday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 65. Light southwest wind.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 65 °F

  • Saturday

    Saturday: Sunny, with a high near 85.

    Sunny

    High: 85 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 62.

    Partly Cloudy

    Low: 62 °F

  • Sunday

    Sunday: Sunny, with a high near 85.

    Sunny

    High: 85 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 62.

    Mostly Clear

    Low: 62 °F

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 62. Calm wind.
Thursday
A slight chance of showers and thunderstorms after 11am. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 87. Southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Light southwest wind. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Click Map For Forecast
Point Forecast:
Duncannon PA
 40.4°N 77.02°W (Elev. 413 ft)
10:05 pm EDT Aug 16, 2017
12am EDT Aug 17, 2017-6pm EDT Aug 22, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database