Local Forecast for Riverside, CA Currently 48.0°F HI: 67.0°F LO: 45.0°F Extended Forecast Overnight Mostly clear, with a low around 45. Southeast wind around 5 mph. Tuesday Increasing clouds, with a high near 67. Southeast wind around 5 mph becoming calm in the morning. Tuesday Night Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind becoming southeast around 5 mph. Wednesday Sunny, with a high near 68. Calm wind becoming west around 5 mph in the afternoon. Wednesday Night Mostly clear, with a low around 49. Calm wind becoming east around 5 mph in the evening. Thursday Mostly sunny, with a high near 76. Thursday Night Mostly clear, with a low around 53. Friday Sunny, with a high near 75. Friday Night Mostly clear, with a low around 51. Saturday Mostly sunny, with a high near 70. Saturday Night Partly cloudy, with a low around 46. Sunday Sunny, with a high near 64. Sunday Night Mostly clear, with a low around 46.