| National Weather Service Forecast for:
Rialto CA Issued by: National Weather Service San Diego, CA |
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| Updated: 5:33 am PDT Oct 6, 2026 | ||||||||||||||||||
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| Today |
Sunny, with a high near 100. North wind around 5 mph becoming calm in the afternoon. |
| Tonight |
Clear, with a low around 72. West wind 5 to 10 mph becoming east in the evening. |
| Wednesday |
Sunny, with a high near 100. Light and variable wind becoming west 5 to 10 mph in the afternoon. |
| Wednesday Night |
Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm in the evening. |
| Thursday |
Sunny, with a high near 100. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. |
| Thursday Night |
Mostly clear, with a low around 70. |
| Friday |
Sunny, with a high near 97. |
| Friday Night |
Mostly clear, with a low around 68. |
| Saturday |
Sunny, with a high near 89. |
| Saturday Night |
Mostly clear, with a low around 63. |
| Sunday |
A slight chance of showers. Mostly sunny, with a high near 81. |
| Sunday Night |
A chance of showers. Partly cloudy, with a low around 57. |
| Columbus Day |
A chance of showers. Mostly sunny, with a high near 76. |
Forecast from NOAA-NWS for Rialto CA.
