Alta Loma, California Weather
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Weather Forecast for Alta Loma, California : San Bernardino County
Issued: 12:08 pm PDT Jul 2, 2025 Latitude: 34.1222317 Longitude: -117.5981086 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Independence Day Saturday Sunday Monday Tuesday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Thursday Sunny on Independence Day Sunny on Saturday Sunny on Sunday Sunny on Monday Sunny on Tuesday
High: 87°F Low: 59°F High: 86°F High: 88°F High: 90°F High: 91°F High: 93°F High: 96°F
Low: 61°F Low: 61°F Low: 62°F Low: 63°F Low: 66°F  
Sunny Mostly Clear Sunny Sunny Sunny Sunny Sunny Sunny
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Current Conditions at
ONTARIO - (KONT)
82°
Mostly Clear
as of 12:53 PM PDST
Rel. Humidity: 39%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
9 MPH
240° Southwest
Cloud Level(s): Few at 12000ft
Current Conditions at
CHINO - (KCNO)
82°
Mostly Clear
as of 12:53 PM PDST
Rel. Humidity: 39%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
9 MPH
Gust: 20 MPH
280° West
Cloud Level(s): Few at 15000ft
Current Conditions at
RIVERSIDE - (KRAL)
84°
Clear
as of 12:53 PM PDST
Rel. Humidity: 39%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 20 MPH
270° West
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny, with a high near 87. West wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. Southwest wind 5 to 10 mph becoming light after midnight.
Sunny on Thursday Thursday... Sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 61. Southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Sunny on Independence Day Independence Day... Sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 61.
Sunny on Saturday Saturday... Sunny, with a high near 90.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 62.
Sunny on Sunday Sunday... Sunny, with a high near 91.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 63.
Sunny on Monday Monday... Sunny, with a high near 93.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 66.
Sunny on Tuesday Tuesday... Sunny, with a high near 96.
Sun Almanac for Alta Loma, California
Sunrise: 05:43 AM
Sunset: 8:06 PM
Civil Sunrise:05:14 AM
Civil Sunset: 8:35 PM
Nautical Sunrise: 04:38 AM
Nautical Sunset: 9:11 PM
Astro Sunrise: 03:59 AM
Astro Sunset: 9:50 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.