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

77°F

25°C

Humidity 56%
Wind Speed SW 9 G 23 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 13 Oct 8:56 pm EDT
Extended Forecast for

Mechanicsburg PA

  • Tonight

    Tonight: Mostly clear, with a low around 64. West wind 5 to 8 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers. Partly sunny, with a high near 82. West wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56. North wind around 6 mph.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 67. North wind around 5 mph becoming light and variable in the morning. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly after 8pm. Cloudy, with a low around 59. South wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely before 8pm. Partly cloudy, with a low around 42. Breezy. Chance of precipitation is 60%.

    Low: 42 °F

    Breezy.
    Showers
    Likely then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 52. Breezy.

    High: 52 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Areas of frost after 2am. Otherwise, clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

Detailed Forecast

Tonight
Mostly clear, with a low around 64. West wind 5 to 8 mph.
Wednesday
A slight chance of showers. Partly sunny, with a high near 82. West wind 3 to 7 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 56. North wind around 6 mph.
Thursday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 67. North wind around 5 mph becoming light and variable in the morning. Chance of precipitation is 30%.
Thursday Night
Showers likely, mainly after 8pm. Cloudy, with a low around 59. South wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely before 8pm. Partly cloudy, with a low around 42. Breezy. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 52. Breezy.
Saturday Night
Areas of frost after 2am. Otherwise, clear, with a low around 34.
Sunday
Areas of frost before 9am. Otherwise, sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 39.
Monday
Mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mechanicsburg PA
 40.2°N 77°W (Elev. 476 ft)
Last Update:
8:05 pm EDT Oct 13, 2026
Forecast Valid:
9pm EDT Oct 13, 2026-6pm EDT Oct 20, 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