Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Mostly Cloudy

78°F

26°C

Humidity 82%
Wind Speed SE 9 mph
Barometer 29.87 in (1011.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 9 Jul 2:56 pm EDT
Extended Forecast for

3 Miles SSW Hummelstown PA

Flood Watch July 9, 03:55pm until July 10, 12:00am
Flash Flood Warning until July 9, 06:15pm
Click here for hazard details and duration
Flood Watch
Flash Flood Warning
  •  
    Flood Watch July 9, 03:55pm until July 10, 12:00am
    Flash Flood Warning until July 9, 06:15pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 85 °F

    Heavy Rain

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 8pm. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 70. Light and variable wind.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Heavy Rain
    then Partly
    Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms, mainly after 1pm.  Increasing clouds, with a high near 89. West wind 3 to 7 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 5am, then a chance of showers.  Mostly cloudy, with a low around 68. North wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 85. North wind 3 to 6 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 85. Southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 8pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, mainly after 1pm. Increasing clouds, with a high near 89. West wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 68. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. North wind 3 to 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
Mostly sunny and hot, with a high near 94.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Hummelstown PA
 40.24°N 76.73°W (Elev. 305 ft)
2:21 pm EDT Jul 9, 2026
3pm EDT Jul 9, 2026-6pm EDT Jul 16, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database