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.

Light Rain Fog/Mist

4°C

40°F

Humidity 89%
Wind Speed S 9 km/h
Barometer 1020.0 mb (30.11 in)
Dewpoint 3°C (37°F)
Visibility 8 km
Wind Chill2°C (36°F)
Last update 18 Nov 11:56 pm EST
Extended Forecast for

2 Miles SE Hummelstown PA

  • Overnight

    Overnight: Rain. Patchy fog. Low around 3. Calm wind. Chance of precipitation is 90%. New precipitation amounts between 2.5 and 5 mm possible.

    Low: 3 °C

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of rain before 7am. Patchy fog before 9am. Otherwise, cloudy, with a high near 9. Northeast wind around 8 km/h becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.

    High: 9 °C

    Chance Rain
    and Patchy
    Fog then
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 1. Calm wind.

    Low: 1 °C

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 9. Southeast wind 3 to 8 km/h.

    High: 9 °C

    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, with a low around 6. Calm wind.

    Low: 6 °C

    Cloudy

  • Friday

    Friday: A slight chance of showers before 1pm. Cloudy, with a high near 14. Chance of precipitation is 20%.

    High: 14 °C

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 4. Chance of precipitation is 40%.

    Low: 4 °C

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 11. Chance of precipitation is 30%.

    High: 11 °C

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 1.

    Low: 1 °C

    Partly Cloudy

Detailed Forecast

Overnight
Rain. Patchy fog. Low around 3. Calm wind. Chance of precipitation is 90%. New precipitation amounts between 2.5 and 5 mm possible.
Wednesday
A chance of rain before 7am. Patchy fog before 9am. Otherwise, cloudy, with a high near 9. Northeast wind around 8 km/h becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.
Wednesday Night
Mostly cloudy, with a low around 1. Calm wind.
Thursday
Cloudy, with a high near 9. Southeast wind 3 to 8 km/h.
Thursday Night
Cloudy, with a low around 6. Calm wind.
Friday
A slight chance of showers before 1pm. Cloudy, with a high near 14. Chance of precipitation is 20%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 4. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 11. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 1.
Sunday
Mostly sunny, with a high near 12.
Sunday Night
Partly cloudy, with a low around 2.
Monday
Mostly sunny, with a high near 14.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
Mostly sunny, with a high near 13.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Hummelstown PA
 40.26°N 76.7°W (Elev. 427 m)
Last Update:
9:46 pm EST Nov 18, 2025
Forecast Valid:
12am EST Nov 19, 2025-6pm EST Nov 25, 2025
 
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