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Waterman Percolation Basins, CA Weather Forecast
Waterman Percolation Basins, CA Weather Forecast Date: 1209 PM PDT Sat Oct 24 2026
The area/counties/county of: San Bernardino And Riverside County Valleys, including the cities of: Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, and Corona.or toggle through each period.
Tonight... Clear. Lows 52 to 56. Areas of winds west to 10 mph this evening becoming light.
Sunday... Mostly sunny. Highs 76 to 80. Light winds becoming west to 10 mph in the afternoon.
Sunday Night... Mostly clear. Lows 53 to 57. Light winds.
Monday... Mostly sunny. Highs 77 to 81. Light winds becoming west to 10 mph in the afternoon.
Monday Night... Clear. Lows 51 to 55. Light winds.
Tuesday... Mostly sunny. Highs 75 to 79.
Tuesday Night... Mostly clear in the evening...Becoming partly cloudy. Lows 51 to 56.
Wednesday... Partly cloudy. Highs 74 to 78.
Wednesday Night... Partly cloudy. Lows 52 to 57.
Thursday... Mostly cloudy in the morning...Becoming partly cloudy. Highs 70 to 75.
Thursday Night... Partly cloudy. A slight chance of showers overnight. Lows 52 to 57.
Friday... Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a chance of showers in the afternoon. Highs 66 to 71.
Friday Night... Partly cloudy with a chance of showers. Lows 50 to 55.
POP = Probability of Precipitation
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