Local Forecast for Riverside, CA Currently 53.0°F HI: 58.0°F LO: 47.0°F Extended Forecast Overnight Showers likely. Mostly cloudy, with a low around 47. West wind around 5 mph becoming calm. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible. Wednesday Showers, with thunderstorms also possible after noon. High near 58. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday Night Showers likely. Mostly cloudy, with a low around 47. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible. Thursday Showers likely. Mostly cloudy, with a high near 58. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible. Thursday Night A chance of showers, mainly before midnight. Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible. Friday A slight chance of showers. Mostly sunny, with a high near 65. Chance of precipitation is 20%. Friday Night Partly cloudy, with a low around 49. Saturday Mostly sunny, with a high near 69. Saturday Night Partly cloudy, with a low around 52. Sunday Partly sunny, with a high near 69. Sunday Night Partly cloudy, with a low around 53. Monday Mostly sunny, with a high near 73. Monday Night Partly cloudy, with a low around 52.