Weather WorldLake Mathews, CA 7-Day Night Weather Forecast
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Lake Mathews, CA Weather Forecast
Lake Mathews, CA Weather Forecast Date: 1203 AM PDT Tue Oct 20 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... Partly cloudy this morning...Becoming mostly sunny. Highs 80 to 85. Light winds becoming southwest 10 to 15 mph with gusts to 25 mph this afternoon.
Tonight... Partly cloudy. Patchy fog overnight. Lows 55 to 60. Areas of winds west 10 mph in the evening becoming light.
Wednesday... Partly cloudy. A chance of showers in the afternoon. Highs 75 to 79. Areas of winds south to 10 mph. Chance of measurable precipitation 50%.
Wednesday Night... Showers likely in the evening, then showers and a slight chance of thunderstorms overnight. Locally heavy rainfall possible overnight. Lows 54 to 61. Areas of winds south to 10 mph.
Thursday... Showers and a slight chance of thunderstorms. Locally heavy rainfall possible in the morning. Highs 64 to 70. Areas of winds south 10 mph.
Thursday Night... Partly cloudy. A slight chance of showers in the evening. Lows 48 to 54.
Friday... Partly cloudy in the morning...Becoming mostly sunny. Highs 69 to 74.
Friday Night... Clear. Lows 51 to 55.
Saturday... Sunny. Highs 75 to 80.
Saturday Night... Mostly clear. Lows 53 to 57.
Sunday... Mostly sunny in the morning...Becoming partly cloudy. Highs 75 to 81.
Sunday Night... Partly cloudy. Lows 54 to 58.
POP = Probability of Precipitation
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