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

59°F

15°C

Humidity 100%
Wind Speed E 5 mph
Barometer 29.59 in (1002.1 mb)
Dewpoint 59°F (15°C)
Visibility 2.00 mi
Last update 12 Mar 1:56 am EDT
Extended Forecast for

3 Miles SE Hummelstown PA

  • Overnight

    Overnight: Showers. Low around 38. West wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers

  • Thursday

    Thursday: Rain and snow showers before 11am, then a slight chance of snow showers between 11am and 2pm. Temperature falling to around 39 by 9am. Breezy, with a northwest wind 18 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 43 °F⇓

    Rain/Snow and
    Breezy then
    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 49. Breezy, with a south wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 49 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. West wind 13 to 15 mph, with gusts as high as 31 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 52.

    High: 52 °F

    Cloudy

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 48. Breezy. Chance of precipitation is 80%.

    Low: 48 °F

    Breezy.
    Chance
    Showers then
    Showers

Detailed Forecast

Overnight
Showers. Low around 38. West wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain and snow showers before 11am, then a slight chance of snow showers between 11am and 2pm. Temperature falling to around 39 by 9am. Breezy, with a northwest wind 18 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 29. Northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Friday
Partly sunny, with a high near 49. Breezy, with a south wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 43 mph.
Friday Night
Partly cloudy, with a low around 36. West wind 13 to 15 mph, with gusts as high as 31 mph.
Saturday
Sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Cloudy, with a high near 52.
Sunday Night
Showers, mainly after 2am. Low around 48. Breezy. Chance of precipitation is 80%.
Monday
Showers. High near 56. Breezy. Chance of precipitation is 80%.
Monday Night
Showers likely. Partly cloudy, with a low around 26. Breezy. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Hummelstown PA
 40.23°N 76.67°W (Elev. 594 ft)
Last Update:
2:06 am EDT Mar 12, 2026
Forecast Valid:
2am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation