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.

Fog/Mist

36°F

2°C

Humidity 100%
Wind Speed NW 3 mph
Barometer 30.18 in (1022.4 mb)
Dewpoint 36°F (2°C)
Visibility 6.00 mi
Last update 10 Jan 4:56 am EST
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Rain, mainly after 11am. Patchy fog before 9am. High near 41. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 41 °F

    Rain Likely
    and Patchy
    Fog then Rain

  • Tonight

    Tonight: A chance of showers, mainly before midnight. Patchy fog between 10pm and 1am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 33. Light and variable wind becoming west 5 to 10 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Mostly sunny, with a high near 42. Breezy, with a west wind 13 to 23 mph, with gusts as high as 40 mph.

    High: 42 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. Breezy, with a west wind 16 to 21 mph, with gusts as high as 34 mph.

    Low: 28 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

Detailed Forecast

Today
Rain, mainly after 11am. Patchy fog before 9am. High near 41. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
A chance of showers, mainly before midnight. Patchy fog between 10pm and 1am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 33. Light and variable wind becoming west 5 to 10 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Mostly sunny, with a high near 42. Breezy, with a west wind 13 to 23 mph, with gusts as high as 40 mph.
Sunday Night
Partly cloudy, with a low around 28. Breezy, with a west wind 16 to 21 mph, with gusts as high as 34 mph.
Monday
Mostly sunny, with a high near 41. West wind 10 to 13 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.2°N 76.77°W (Elev. 299 ft)
Last Update:
1:06 am EST Jan 10, 2026
Forecast Valid:
5am EST Jan 10, 2026-6pm EST Jan 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation