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

74°F

23°C

Humidity 69%
Wind Speed NW 3 mph
Barometer 30.09 in (1018.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 25 May 2:56 pm EDT
Extended Forecast for

Mechanicsburg PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Patchy fog between 1am and 2am. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 56. Calm wind.
Tuesday
Partly sunny, with a high near 79. Light and variable wind.
Tuesday Night
A chance of showers after 2am. Patchy fog between 1am and 2am. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, with a low around 60. Calm wind.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsburg PA
 40.22°N 77°W (Elev. 440 ft)
Last Update:
2:36 pm EDT May 25, 2026
Forecast Valid:
3pm EDT May 25, 2026-6pm EDT Jun 1, 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