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      Elev 322 ft, 40.270 °N 76.703 °W

      Hummelstown, PA

      Updated: 10:17 PM EDT on September 16, 2026 (GMT -4)
      2 minutes ago
      84°
      54°
      74
      Feels Like 75
      Partly Cloudy
      N
      4
      Same temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Tonight
        Wed 09/16
        Low 66°f
        11% Precip. / 0 in
        Partly to mostly cloudy. Low 66F. Winds light and variable.
        Tomorrow
        Thu 09/17
        High 83°f
        67% Precip. / 0.16 in
        Rain showers in the morning with numerous thunderstorms developing in the afternoon. Storms may contain strong gusty winds. High 83F. Winds SSW at 5 to 10 mph. Chance of rain 70%.
        Tomorrow night
        Thu 09/17
        Low 66°f
        59% Precip. / 0.13 in
        Showers likely along with a possible rumble of thunder during the evening, then partly cloudy overnight. Low 66F. Winds WNW at 5 to 10 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        74°
        11PM
        73°
        12AM
        73°
        1AM
        72°
        2AM
        70°
        3AM
        70°
        4AM
        70°
        5AM
        69°
        6AM
        67°
        6:49AM
        Sunrise
        7AM
        67°
        8AM
        33%
        69°
        9AM
        47%
        70°
        10AM
        44%
        72°
        11AM
        74°
        12PM
        76°
        1PM
        79°
        2PM
        81°
        3PM
        37%
        82°
        4PM
        82°
        5PM
        68%
        81°
        6PM
        48%
        79°
        7PM
        34%
        77°
        7:12PM
        Sunset
        8PM
        56%
        75°
        9PM
        60%
        73°
        10PM
        72°
        Additional Conditions
        1. Pressure 30.27 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point67°F
        5. Humidity 79%
        6. Rainfall 0 in
        7. Snow Depth 0 in
        KMDT Station History
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 84°F 78°F 93°F 1972
        4. Low 54°F 58°F 41°F 1959
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 83°F 78°F 92°F
        4. Low 54°F 58°F 40°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:49 AM 7:12 PM
        3. Civil Twilight 6:22 AM 7:39 PM
        4. Nautical Twilight 5:50 AM 8:11PM
        5. Astronomical Twilight 5:17 AM 8:43 PM
        1. Length of Visible Light 13h 16m
        2. Length of Day 12h 22m
        3. Tomorrow will be 2 minutes 38 seconds shorter
        1. Moon 1:46 PM 10:33 PM
        2. Waxing Crescent39% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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