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

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Mostly Cloudy

33°F

1°C

Humidity 42%
Wind Speed S 18 G 30 mph
Barometer 30.24 in (1024.7 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 21 Jan 1:56 pm EST
Extended Forecast for

Harrisburg International Airport PA

  • This Afternoon

    This Afternoon: A slight chance of snow after 3pm. Cloudy, with a high near 33. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 33 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: A slight chance of snow before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 31. South wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 43. West wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 43 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22. West wind around 6 mph.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 34. West wind 5 to 15 mph, with gusts as high as 26 mph.

    High: 34 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 17.

    High: 17 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Snow, mainly after 1am. Low around 11. Chance of precipitation is 80%.

    Low: 11 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: Snow. High near 18. Chance of precipitation is 90%.

    High: 18 °F

    Snow

Detailed Forecast

This Afternoon
A slight chance of snow after 3pm. Cloudy, with a high near 33. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tonight
A slight chance of snow before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 31. South wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 43. West wind 7 to 15 mph, with gusts as high as 26 mph.
Thursday Night
Partly cloudy, with a low around 22. West wind around 6 mph.
Friday
Partly sunny, with a high near 34. West wind 5 to 15 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 8.
Saturday
Mostly cloudy, with a high near 17.
Saturday Night
Snow, mainly after 1am. Low around 11. Chance of precipitation is 80%.
Sunday
Snow. High near 18. Chance of precipitation is 90%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 13. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 22.
Monday Night
Partly cloudy, with a low around 4.
Tuesday
Sunny, with a high near 22.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.22°N 76.76°W (Elev. 446 ft)
Last Update:
1:16 pm EST Jan 21, 2026
Forecast Valid:
2pm EST Jan 21, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation