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

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

42°F

6°C

Humidity 62%
Wind Speed SE 3 mph
Barometer 30.13 in (1020.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 18 Nov 6:56 pm EST
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

    Tonight: Rain. Patchy fog after 11pm. Low around 38. Light east wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of rain before 7am. Patchy fog before 9am. Otherwise, cloudy, with a high near 48. Northeast wind around 5 mph becoming light and variable. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 49. Calm wind becoming southeast around 5 mph.

    High: 49 °F

    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Cloudy

  • Friday

    Friday: A slight chance of showers before 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 20%.

    High: 56 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.

    Low: 40 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 51. Chance of precipitation is 30%.

    High: 51 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain. Patchy fog after 11pm. Low around 38. Light east wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain before 7am. Patchy fog before 9am. Otherwise, cloudy, with a high near 48. Northeast wind around 5 mph becoming light and variable. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 33. Calm wind.
Thursday
Cloudy, with a high near 49. Calm wind becoming southeast around 5 mph.
Thursday Night
Cloudy, with a low around 41. Calm wind.
Friday
A slight chance of showers before 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 20%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 51. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.22°N 76.76°W (Elev. 446 ft)
Last Update:
7:05 pm EST Nov 18, 2025
Forecast Valid:
7pm EST Nov 18, 2025-6pm EST Nov 25, 2025
 
Forecast Discussion
 
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Additional Resources

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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