My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Flood Watch
      until 12:00 PM EDT
      Elev 12 ft, 39.863 °N 75.379 °W

      Chester, PA

      Brookhaven Station77°
      Updated: 6:39 PM EDT on September 12, 2026 (GMT -4)
      3 minutes ago
      83°
      60°
      77
      Feels Like 78
      Cloudy
      N
      9
      Similar 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
        Sat 09/12
        Low 72°f
         74% Precip. / 0.38 in
        Cloudy skies early, then thunderstorms developing late. Low 72F. Winds SE at 5 to 10 mph. Chance of rain 70%. Locally heavy rainfall possible.
        Tomorrow
        Sun 09/13
        High 85°f
         71% Precip. / 0.04 in
        Rain ending early. Breaks of sun in the afternoon. High around 85F. Winds WNW at 5 to 10 mph. Chance of rain 70%.
        Tomorrow night
        Sun 09/13
        Low 70°f
         15% Precip. / 0 in
        Clear skies with a few passing clouds. Slight chance of a rain shower. Low near 70F. Winds W at 5 to 10 mph.
        Hourly Forecast
        Now
        76°
        7PM
        76°
        7:15PM
        Sunset
        8PM
        75°
        9PM
        74°
        10PM
        74°
        11PM
        74°
        12AM
        74°
        1AM
        31%
        74°
        2AM
        65%
        73°
        3AM
        74%
        73°
        4AM
        75%
        73°
        5AM
        61%
        73°
        6AM
        68%
        73°
        6:40AM
        Sunrise
        7AM
        70%
        73°
        8AM
        71%
        74°
        9AM
        75°
        10AM
        76°
        11AM
        77°
        12PM
        79°
        1PM
        81°
        2PM
        83°
        3PM
        83°
        4PM
        84°
        5PM
        84°
        6PM
        83°
        Precipitation
        75%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        41
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.02 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point63°F
        5. Humidity 63%
        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 83°F 82°F 99°F 1931
        4. Low 60°F 63°F 50°F 1967
        5. Rain/Snow Depth
        6. Precipitation 0.38 in - in -
        7. Snow 0 in - in -
        Almanac for September 13, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 85°F 81°F 95°F
        4. Low 60°F 63°F 49°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:39 AM 7:14 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 35 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
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareersWeather Data APIs
        PWS NetworkWundermap
        Terms of UsePrivacy PolicyCookie NoticeAccessibility StatementAdChoicesData Vendors
        essentialaccessibility.com
        We recognize our responsibility to use data and technology for good. We may use or share your data with our data vendors. Take control of your data.
        Review All Privacy and Ad Settings
        Choose how my information is shared
        Data Rights
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary