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      Extreme Heat Watch
      until 8:00 PM PDT
      +1 more alert
      Elev 755 ft, 34.005 °N 117.591 °W

      Ontario, CA

      Archibald Ranch Station
      Updated: 4:12 PM PDT on August 23, 2026 (GMT -7)
      5 minutes ago
      106°
      69°
      104
      Feels Like 102
      Fair
      N
      14
      Gusts 21 mph
      Similar temperature is expected tomorrow
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Tonight
      Mon 08/24
      Low 73°f
      1% Precip. / 0 in
      Partly cloudy skies. Low 73F. W winds at 10 to 20 mph, decreasing to less than 5 mph.
      Tomorrow
      Tue 08/25
      High 105°f
      0% Precip. / 0 in
      Sunny skies. Hot. High near 105F. Winds WSW at 10 to 20 mph.
      Tomorrow night
      Tue 08/25
      Low 72°f
      2% Precip. / 0 in
      Clear. Low 72F. W winds at 10 to 15 mph, decreasing to less than 5 mph.
      Hourly Forecast
      Now
      104°
      5PM
      102°
      6PM
      99°
      7PM
      95°
      7:27PM
      Sunset
      8PM
      89°
      9PM
      85°
      10PM
      82°
      11PM
      80°
      12AM
      78°
      1AM
      77°
      2AM
      76°
      3AM
      76°
      4AM
      75°
      5AM
      75°
      6AM
      74°
      6:18AM
      Sunrise
      7AM
      74°
      8AM
      79°
      9AM
      84°
      10AM
      89°
      11AM
      94°
      12PM
      98°
      1PM
      101°
      2PM
      102°
      3PM
      103°
      4PM
      103°
      Precipitation
      1%
      Pollen
      Ragweed Pollen
      Moderate
      Air Quality
      51
      Moderate
      UV Index
      4
      Moderate
      Additional Conditions
      1. Pressure 29.79 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point51°F
      5. Humidity 18%
      6. Rainfall 0 in
      7. Snow Depth 0 in
       KCNO Station History
      Almanac for August 23, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 106°F 94°F 109°F 1956
      4. Low 69°F 63°F 51°F 1978
      5. Rain/Snow Depth
      6. Precipitation 0 in 0.01 in -
      7. Snow 0 in - in -
      Almanac for August 24, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 105°F 94°F 106°F
      4. Low 69°F 63°F 50°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:17 AM 7:27 PM
      3. Civil Twilight 5:51 AM 7:53 PM
      4. Nautical Twilight 5:20 AM 8:24PM
      5. Astronomical Twilight 4:48 AM 8:56 PM
      1. Length of Visible Light 14h 1m
      2. Length of Day 13h 9m
      3. Tomorrow will be 1 minute 57 seconds shorter
      1. Moon 5:00 PM 1:47 AM
      2. Waxing Gibbous83% 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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