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

40°F

4°C

Humidity 79%
Wind Speed E 3 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 20 Mar 8:56 am EDT
Extended Forecast for

Lower Allen PA

  • Today

    Today: Rain, mainly after 5pm. High near 64. Light southeast wind becoming south 9 to 14 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Partly Sunny
    then Rain

  • Tonight

    Tonight: Rain and thunderstorms likely before 11pm, then a slight chance of rain between 11pm and 1am. Cloudy during the early evening, then gradual clearing, with a low around 45. Southwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 56. North wind around 7 mph.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 71. Southwest wind 5 to 10 mph.

    High: 71 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
Rain, mainly after 5pm. High near 64. Light southeast wind becoming south 9 to 14 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain and thunderstorms likely before 11pm, then a slight chance of rain between 11pm and 1am. Cloudy during the early evening, then gradual clearing, with a low around 45. Southwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 56. North wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 42. Calm wind.
Sunday
Mostly cloudy, with a high near 71. Southwest wind 5 to 10 mph.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain likely, mainly before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Lower Allen PA
 40.23°N 76.91°W (Elev. 400 ft)
Last Update:
8:05 am EDT Mar 20, 2026
Forecast Valid:
9am EDT Mar 20, 2026-6pm EDT Mar 26, 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