| National Weather Service Forecast for:
Hercules CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: 1:26 am PDT Jun 30, 2026 | ||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 55. South southwest wind around 9 mph. |
| Tuesday |
Sunny, with a high near 72. South southwest wind 9 to 14 mph, with gusts as high as 21 mph. |
| Tuesday Night |
Increasing clouds, with a low around 53. South southwest wind 9 to 14 mph, with gusts as high as 21 mph. |
| Wednesday |
Mostly sunny, with a high near 72. Southwest wind 8 to 13 mph, with gusts as high as 21 mph. |
| Wednesday Night |
Partly cloudy, with a low around 53. South southwest wind 14 to 16 mph, with gusts as high as 25 mph. |
| Thursday |
Mostly sunny, with a high near 68. |
| Thursday Night |
Partly cloudy, with a low around 53. |
| Friday |
Mostly sunny, with a high near 73. |
| Friday Night |
Mostly clear, with a low around 54. |
| Independence Day |
Mostly sunny, with a high near 72. |
| Saturday Night |
Partly cloudy, with a low around 54. |
| Sunday |
Partly sunny, with a high near 70. |
| Sunday Night |
Partly cloudy, with a low around 54. |
| Monday |
Mostly sunny, with a high near 70. |
Forecast from NOAA-NWS for Hercules CA.
