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      Flood Watch
      until 12:00 PM EDT
      Elev 59 ft, 39.864 °N 75.434 °W

      Aston, PA

      Chester Plaza Station81°
      Updated: 1:43 PM EDT on September 12, 2026 (GMT -4)
      4 minutes ago
      81°
      59°
      81
      Feels Like 83
      Mostly Cloudy
      N
      9
      Same 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
        Sat 09/12
        High 81°f
         1% Precip. / 0 in
        Cloudy. High 81F. Winds SSE at 10 to 15 mph.
        Tonight
        Sat 09/12
        Low 71°f
         81% Precip. / 0.36 in
        Cloudy skies early, then thunderstorms developing late. Low 71F. Winds SE at 5 to 10 mph. Chance of rain 80%. Locally heavy rainfall possible.
        Tomorrow
        Sun 09/13
        High 85°f70°f
         61% Precip. / 0.04 in
        Rain showers early with some sunshine later in the day. High near 85F. Winds WNW at 5 to 10 mph. Chance of rain 60%.
        Hourly Forecast
        Now
        81°
        2PM
        81°
        3PM
        81°
        4PM
        81°
        5PM
        80°
        6PM
        79°
        7PM
        77°
        7:15PM
        Sunset
        8PM
        76°
        9PM
        74°
        10PM
        74°
        11PM
        73°
        12AM
        73°
        1AM
        55%
        73°
        2AM
        70%
        73°
        3AM
        47%
        73°
        4AM
        50%
        73°
        5AM
        83%
        73°
        6AM
        79%
        73°
        6:40AM
        Sunrise
        7AM
        61%
        73°
        8AM
        31%
        74°
        9AM
        39%
        75°
        10AM
        32%
        76°
        11AM
        77°
        12PM
        80°
        1PM
        81°
        Precipitation
        83%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        52
        Moderate
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 30.06 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point63°F
        5. Humidity 54%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KPHL Station History
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 82°F 99°F 1931
        4. Low 59°F 63°F 50°F 1967
        5. Rain/Snow Depth
        6. Precipitation 0.36 in - in -
        7. Snow 0 in - in -
        Almanac for September 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 86°F 81°F 95°F
        4. Low 59°F 63°F 49°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:40 AM 7:15 PM
        3. Civil Twilight 6:12 AM 7:42 PM
        4. Nautical Twilight 5:40 AM 8:14PM
        5. Astronomical Twilight 5:07 AM 8:47 PM
        1. Length of Visible Light 13h 29m
        2. Length of Day 12h 35m
        3. Tomorrow will be 2 minutes 36 seconds shorter
        1. Moon 8:15 AM 7:47 PM
        2. Waxing Crescent2% 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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