My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Small Craft Advisory
      until 3:00 AM PDT
      Elev 577 ft, 37.833 °N 122.124 °W

      Moraga, CA

      Rheem Valley Station56°
      Updated: 5:38 AM PDT on September 27, 2026 (GMT -7)
      6 minutes ago
      68°
      53°
      56
      Feels Like 56
      Showers in Vicinity
      N
      10
      Gusts 16 mph
      Lower temperature is expected today
      Wundermap
      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
        Mon 09/28
        High 68°f
         16% Precip. / 0 in
        Cloudy early with peeks of sunshine expected late. High 68F. Winds SW at 10 to 20 mph.
        Tonight
        Mon 09/28
        Low 53°f
         22% Precip. / 0 in
        Partly cloudy skies this evening will become overcast overnight. Low 53F. Winds SW at 10 to 15 mph.
        Tomorrow
        Tue 09/29
        High 74°f52°f
         17% Precip. / 0 in
        Partly cloudy skies. High 74F. Winds WSW at 10 to 15 mph.
        Hourly Forecast
        Now
        56°
        6AM
        56°
        7AM
        56°
        7:00AM
        Sunrise
        8AM
        57°
        9AM
        57°
        10AM
        58°
        11AM
        60°
        12PM
        62°
        1PM
        65°
        2PM
        66°
        3PM
        67°
        4PM
        66°
        5PM
        64°
        6PM
        62°
        6:57PM
        Sunset
        7PM
        59°
        8PM
        58°
        9PM
        56°
        10PM
        56°
        11PM
        55°
        12AM
        54°
        1AM
        55°
        2AM
        55°
        3AM
        55°
        4AM
        54°
        5AM
        54°
        Precipitation
        22%
        Rain ending around 6:00 AM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        23
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.88 in
        2. Visibility 5 miles
        3. Clouds Cloudy
        4. Dew Point52°F
        5. Humidity 87%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KOAK Station History
        Almanac for September 27, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 68°F 74°F 95°F 1973
        4. Low 53°F 57°F 52°F 1986
        5. Rain/Snow Depth
        6. Precipitation 0 in 2.9 in -
        7. Snow 0 in 0 in -
        Almanac for September 28, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 74°F 97°F
        4. Low 53°F 57°F 48°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:00 AM 6:57 PM
        3. Civil Twilight 6:34 AM 7:23 PM
        4. Nautical Twilight 6:04 AM 7:54PM
        5. Astronomical Twilight 5:33 AM 8:24 PM
        1. Length of Visible Light 12h 48m
        2. Length of Day 11h 56m
        3. Tomorrow will be 2 minutes 25 seconds shorter
        1. Moon 7:19 PM 8:07 AM
        2. Waning Gibbous97% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
        Nearby Weather Stations
        Station Location
        Temp
        Windchill
        Heat Index
        Dew Point
        Humidity
        Wind
        Precip.
        Elev.
        Updated
        Loading nearby stations…
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareers
        PWS NetworkWunderMap
        Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
        Level Access
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary