National Weather Service Forecast for:
Rialto CA Issued by: National Weather Service San Diego, CA |
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Updated: 2:09 am PDT Jul 25, 2025 | ||||||||||||||||||
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Overnight |
Mostly clear, with a low around 58. Southwest wind around 5 mph becoming calm. |
Friday |
Sunny, with a high near 85. Light southwest wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph. |
Friday Night |
Patchy fog after 2am. Otherwise, mostly clear, with a low around 57. Southwest wind 5 to 10 mph becoming light south after midnight. Winds could gust as high as 20 mph. |
Saturday |
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Light south wind becoming southwest 5 to 10 mph in the afternoon. |
Saturday Night |
Mostly clear, with a low around 58. Southwest wind 5 to 15 mph. |
Sunday |
Sunny, with a high near 88. |
Sunday Night |
Mostly clear, with a low around 61. |
Monday |
Sunny, with a high near 92. |
Monday Night |
Mostly clear, with a low around 64. |
Tuesday |
Sunny, with a high near 95. |
Tuesday Night |
Mostly clear, with a low around 65. |
Wednesday |
Sunny, with a high near 95. |
Wednesday Night |
Mostly clear, with a low around 66. |
Thursday |
Sunny, with a high near 94. |
Forecast from NOAA-NWS for Rialto CA.