Weather WorldAlta Loma, CA 7-Day Weather Forecast
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Alta Loma Weather Forecast
Alta Loma, CA Weather Forecast Date: 1216 PM PDT Wed Oct 21 2026
Weather forecast for Alta Loma, CA
Tonight Lo: 57°F Lo: 14°C |
Tonight... Showers likely and a slight chance of thunderstorms this evening, then showers and scattered thunderstorms overnight. Locally heavy rainfall possible overnight. Lows 54 to 59. Areas of winds south 10 to 15 mph this evening becoming light. |
Thu Hi: 67°FHi: 19°C Lo: 52°F Lo: 11°C |
Thursday... Scattered thunderstorms. Showers. Highs 64 to 68. Areas of winds south to 10 mph. |
Fri Hi: 69°FHi: 21°C Lo: 52°F Lo: 11°C |
Friday... Partly cloudy in the morning...Becoming mostly sunny. Highs 66 to 71. Light winds becoming west to 10 mph in the afternoon. |
Sat Hi: 76°FHi: 24°C Lo: 55°F Lo: 13°C |
Saturday... Mostly sunny. Highs 73 to 77. |
| Sun Hi: 79°FHi: 26°C Lo: 56°F Lo: 13°C |
Sunday... Mostly sunny in the morning...Becoming partly cloudy. Highs 76 to 80. |
| Mon Hi: 80°FHi: 27°C Lo: 56°F Lo: 13°C |
Monday... Mostly sunny. Highs 77 to 81. |
| Tue Hi: 79°FHi: 26°C Lo: 56°F Lo: 13°C |
Tuesday... Partly cloudy. Highs 76 to 81. |
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