My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Extreme Heat Warning
      until 8:00 PM PDT
      Elev 935 ft, 34.108 °N 117.816 °W

      San Dimas, CA

      Diamond Ridge Station87°

      Summary

      Temperature (°F) Actual Historic Avg. Record
      High Temp9990113
      Low Temp796243
      Day Average Temp91.77--
      Precipitation (in) Actual Historic Avg. Record
      Precipitation03.4-
      Dew Point (°F) Actual Historic Avg. Record
      Dew Point63.08--
      High66--
      Low61--
      Average63.08--
      Wind (mph) Actual Historic Avg. Record
      Max Wind Speed14--
      Visibility10--
      Sea Level Pressure (in) Actual Historic Avg. Record
      Sea Level Pressure28.85--
      Astronomy Day Length Rise Set
      Actual Time12h 33m6:31 AM7:04 PM
      Civil Twilight6:05 AM7:29 PM
      Nautical Twilight5:36 AM7:59 PM
      Astronomical Twilight5:05 AM8:29 PM
      Moon: New6:00 AM6:51 PM

      Daily Observations

      TimeTemperatureDew PointHumidityWindWind SpeedWind GustPressurePrecip.Condition
      6:47 AM 90 °F 61 °F 38 % W 3 mph - 28.88 in - Fair
      7:47 AM 79 °F 66 °F 65 % CALM 0 mph - 28.9 in - Fair
      8:47 AM 82 °F 64 °F 54 % W 5 mph - 28.91 in - Fair
      9:47 AM 88 °F 64 °F 46 % W 3 mph - 28.91 in - Fair
      10:47 AM 91 °F 64 °F 41 % WNW 3 mph - 28.91 in - Fair
      11:47 AM 93 °F 64 °F 38 % WSW 7 mph - 28.89 in - Fair
      12:47 PM 97 °F 64 °F 34 % WSW 9 mph - 28.86 in - Fair
      1:47 PM 99 °F 63 °F 30 % W 13 mph - 28.83 in - Fair
      2:47 PM 97 °F 64 °F 34 % WSW 14 mph - 28.82 in - Fair
      3:47 PM 97 °F 61 °F 30 % WSW 9 mph - 28.8 in - Fair
      4:47 PM 97 °F 63 °F 32 % WSW 10 mph - 28.8 in - Fair
      5:47 PM 93 °F 61 °F 34 % SW 12 mph - 28.8 in - Fair
      6:47 PM 90 °F 61 °F 38 % SW 12 mph - 28.8 in - Fair
      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