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      Heat Advisory
      until 8:00 PM PDT
      Elev 879 ft, 33.993 °N 117.755 °W

      Chino Hills, CA

      Sleepy Hollow Station
      Updated: 6:43 PM PDT on August 20, 2026 (GMT -7)
      6 minutes ago
      97°
      66°
      85
      Feels Like 89
      Partly Cloudy
      N
      12
      Gusts 18 mph
      Similar temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Fri 08/21
      Low 71°f
      4% Precip. / 0 in
      Cloudy skies this evening will become partly cloudy after midnight. Low 71F. Winds W at 10 to 15 mph.
      Tomorrow
      Sat 08/22
      High 98°f
      3% Precip. / 0 in
      Partly cloudy skies. Hot. High 98F. Winds WSW at 10 to 15 mph.
      Tomorrow night
      Sat 08/22
      Low 70°f
      3% Precip. / 0 in
      Partly cloudy skies. Low around 70F. Winds W at 10 to 15 mph.
      Hourly Forecast
      Now
      84°
      7PM
      83°
      7:31PM
      Sunset
      8PM
      81°
      9PM
      79°
      10PM
      77°
      11PM
      76°
      12AM
      75°
      1AM
      74°
      2AM
      75°
      3AM
      74°
      4AM
      73°
      5AM
      72°
      6AM
      72°
      6:17AM
      Sunrise
      7AM
      73°
      8AM
      77°
      9AM
      81°
      10AM
      86°
      11AM
      90°
      12PM
      93°
      1PM
      95°
      2PM
      96°
      3PM
      96°
      4PM
      96°
      5PM
      94°
      6PM
      91°
      Precipitation
      4%
      Pollen
      Ragweed Pollen
      Moderate
      Air Quality
      105
      Unhealthy for Sensitive Groups
      UV Index
      0
      Low
      Additional Conditions
      1. Pressure 29.91 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point61°F
      5. Humidity 47%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KCNO Station History
      Almanac for August 21, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 97°F 93°F 107°F 1969
      4. Low 66°F 63°F 47°F 1936
      5. Rain/Snow Depth
      6. Precipitation 0 in 4 in -
      7. Snow 0 in 0 in -
      Almanac for August 22, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 98°F 93°F 106°F
      4. Low 66°F 63°F 45°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:17 AM 7:30 PM
      3. Civil Twilight 5:51 AM 7:56 PM
      4. Nautical Twilight 5:19 AM 8:27PM
      5. Astronomical Twilight 4:47 AM 8:59 PM
      1. Length of Visible Light 14h 5m
      2. Length of Day 13h 13m
      3. Tomorrow will be 1 minute 56 seconds shorter
      1. Moon 3:23 PM 12:06 AM
      2. Waxing Gibbous67% of the Moon is Illuminated
      Aug 27
      Full Moon
      Sep 4
      Waning Half Last Qtr
      Sep 10
      New Moon
      Sep 18
      Waxing Half First Qtr
      Precipitation
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