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

67°F

19°C

Humidity 91%
Wind Speed Calm
Barometer 29.98 in (1015.2 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 27 May 1:56 am EDT
Extended Forecast for

2 Miles NNW Hummelstown PA

  • Overnight

    Overnight: A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 65. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers before 9am. Patchy fog before 8am. Otherwise, cloudy, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Northwest wind around 6 mph.

    Low: 59 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 76. North wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. North wind 5 to 9 mph becoming light northwest after midnight.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 65. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A slight chance of showers before 9am. Patchy fog before 8am. Otherwise, cloudy, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 76. North wind 7 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 52. North wind 5 to 9 mph becoming light northwest after midnight.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Hummelstown PA
 40.28°N 76.72°W (Elev. 400 ft)
Last Update:
2:20 am EDT May 27, 2026
Forecast Valid:
2am EDT May 27, 2026-6pm EDT Jun 2, 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