Weather forecast for: Rialto CA
Last Update: 11:27 am PDT Sep 13, 2026
This Afternoon: Sunny, with a high near 91. Southwest wind 5 to 10 mph.
Tonight: Mostly clear, with a low around 66. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Monday: Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night: Mostly clear, with a low around 64. Southwest wind 5 to 10 mph becoming light south in the evening.
Tuesday: Sunny, with a high near 86. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night: Mostly clear, with a low around 62.
Wednesday: Sunny, with a high near 85.
Wednesday Night: Mostly clear, with a low around 62.
Thursday: Sunny, with a high near 87.
Thursday Night: Clear, with a low around 62.
Friday: Sunny, with a high near 90.
Friday Night: Clear, with a low around 64.
Saturday: Sunny, with a high near 92.