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Ontario Park, CA 7-Day Night Weather Forecast
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Ontario Park, CA Weather Forecast
Ontario Park, CA Weather Forecast Date: 125 AM PDT Sat Aug 22 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.
Today... Sunny. Highs 99 to 105. Light winds becoming west 10 to 15 mph this afternoon.
Tonight... Clear. Lows 66 to 72. Areas of winds west to 10 mph in the evening becoming light.
Sunday... Mostly sunny. Highs 99 to 105. Light winds becoming west 10 to 15 mph in the afternoon.
Sunday Night... Mostly clear. Lows 67 to 72. Areas of winds west to 10 mph in the evening becoming light.
Monday... Mostly sunny. Highs 99 to 105. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
Monday Night... Mostly clear. Lows 67 to 72.
Tuesday... Sunny. Highs 100 to 107.
Tuesday Night... Clear. Lows 69 to 73.
Wednesday... Mostly sunny. Highs 101 to 107.
Wednesday Night... Mostly clear. Lows 70 to 73.
Thursday... Mostly sunny. Highs 101 to 107.
Thursday Night... Partly cloudy. Lows 69 to 73.
POP = Probability of Precipitation
Ontario Park Radar Loop
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