Local Forecast for Riverside, CA Currently 64.0°F HI: 78.0°F LO: 56.0°F Extended Forecast Overnight Increasing clouds, with a low around 56. Calm wind. Tuesday Mostly cloudy through mid morning, then gradual clearing, with a high near 78. Light southwest wind becoming west 5 to 10 mph in the afternoon. Tuesday Night Mostly clear, with a low around 56. West wind 5 to 10 mph becoming light and variable in the evening. Wednesday Mostly sunny, with a high near 80. Light and variable wind becoming west 5 to 10 mph in the afternoon. Wednesday Night Increasing clouds, with a low around 55. West wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Thursday Mostly cloudy, then gradually becoming sunny, with a high near 75. Thursday Night Partly cloudy, with a low around 52. Friday Mostly sunny, with a high near 73. Friday Night Partly cloudy, with a low around 51. Saturday Partly sunny, then gradually becoming sunny, with a high near 74. Saturday Night Mostly clear, with a low around 52. Sunday Sunny, with a high near 80. Sunday Night Clear, with a low around 55.