Local Forecast for Riverside, CA Currently 48.0°F HI: 62.0°F LO: 46.0°F Extended Forecast Overnight Showers likely. Mostly cloudy, with a low around 46. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible. Friday Mostly cloudy, then gradually becoming sunny, with a high near 62. Southeast wind around 5 mph becoming calm in the morning. Friday Night Partly cloudy, with a low around 43. Calm wind. Saturday Mostly sunny, with a high near 69. Light and variable wind becoming north 5 to 10 mph in the morning. Saturday Night Partly cloudy, with a low around 46. North wind around 5 mph becoming calm in the evening. Sunday Mostly sunny, with a high near 74. Sunday Night Partly cloudy, with a low around 48. M.L.King Day Mostly sunny, with a high near 70. Monday Night Partly cloudy, with a low around 46. Tuesday A slight chance of showers. Partly sunny, with a high near 67. Tuesday Night Mostly cloudy, with a low around 46. Wednesday Mostly sunny, with a high near 67. Wednesday Night Mostly clear, with a low around 46.