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      Elev 226 ft, 40.253 °N 75.654 °W

      Pottstown, PA

      Heritage Field Station58°
      Updated: 4:25 AM EDT on September 22, 2026 (GMT -4)
      3 minutes ago
      63°
      55°
      58
      Feels Like 58
      Rain
      N
      9
      Gusts 18 mph
      Lower temperature is expected today
      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
        Today
        Tue 09/22
        High 63°f
         99% Precip. / 0.35 in
        Cloudy with occasional rain...mainly in the morning. High 63F. Winds NE at 5 to 10 mph. Chance of rain 100%. Rainfall around a quarter of an inch.
        Tonight
        Tue 09/22
        Low 52°f
         14% Precip. / 0 in
        Cloudy. Low 52F. Winds NE at 5 to 10 mph.
        Tomorrow
        Wed 09/23
        High 66°f48°f
         15% Precip. / 0 in
        Cloudy skies early, followed by partial clearing. Slight chance of a rain shower. High 66F. Winds NE at 10 to 15 mph.
        Hourly Forecast
        Now
        58°
        5AM
        97%
        57°
        6AM
        92%
        57°
        6:50AM
        Sunrise
        7AM
        96%
        56°
        8AM
        90%
        57°
        9AM
        74%
        57°
        10AM
        51%
        57°
        11AM
        33%
        58°
        12PM
        59°
        1PM
        60°
        2PM
        60°
        3PM
        61°
        4PM
        61°
        5PM
        63°
        6PM
        62°
        6:59PM
        Sunset
        7PM
        61°
        8PM
        60°
        9PM
        60°
        10PM
        59°
        11PM
        59°
        12AM
        58°
        1AM
        58°
        2AM
        57°
        3AM
        55°
        4AM
        55°
        Precipitation
        97%
        Rain continuing through 11 AM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        22
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.19 in
        2. Visibility 5 miles
        3. Clouds Cloudy
        4. Dew Point56°F
        5. Humidity 95%
        6. Rainfall 0.16 in
        7. Snow Depth 0 in
         KPTW Station History
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 63°F 74°F 93°F 1970
        4. Low 55°F 56°F 34°F 1962
        5. Rain/Snow Depth
        6. Precipitation 0.35 in 0.14 in -
        7. Snow 0 in - in -
        Almanac for September 23, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 66°F 74°F 93°F
        4. Low 55°F 55°F 36°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:50 AM 6:59 PM
        3. Civil Twilight 6:23 AM 7:26 PM
        4. Nautical Twilight 5:51 AM 7:58PM
        5. Astronomical Twilight 5:18 AM 8:30 PM
        1. Length of Visible Light 13h 3m
        2. Length of Day 12h 9m
        3. Tomorrow will be 2 minutes 39 seconds shorter
        1. Moon 5:08 PM 2:21 AM
        2. Waxing Gibbous84% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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