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

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

76°F

24°C

Humidity 82%
Wind Speed W 5 mph
Barometer 29.95 in (1013.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 10 Sep 8:56 am EDT
Extended Forecast for

Lower Allen PA

  • Today

    Today: Mostly sunny, with a high near 86. West wind 6 to 9 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Isolated showers before midnight, then isolated showers after 3am. Mostly cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 20%.

    Low: 66 °F

    Isolated
    Showers

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 80. North wind 3 to 5 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers

  • Sunday

    Sunday: Showers likely before 8am. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 86. West wind 6 to 9 mph.
Tonight
Isolated showers before midnight, then isolated showers after 3am. Mostly cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 20%.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 80. North wind 3 to 5 mph.
Friday Night
Partly cloudy, with a low around 61. Calm wind.
Saturday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely before 8am. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lower Allen PA
 40.23°N 76.91°W (Elev. 400 ft)
Last Update:
8:06 am EDT Sep 10, 2026
Forecast Valid:
9am EDT Sep 10, 2026-6pm EDT Sep 16, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation