| National Weather Service Forecast for:
Clearlake CA Issued by: National Weather Service Eureka, CA |
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| Updated: 2:10 am PDT Jun 30, 2026 | ||||||||||||||||||
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| Overnight |
Clear, with a low around 55. Calm wind. |
| Tuesday |
Sunny, with a high near 89. Calm wind becoming west around 6 mph in the afternoon. |
| Tuesday Night |
Mostly clear, with a low around 55. West wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph. |
| Wednesday |
Sunny, with a high near 88. Calm wind becoming east northeast around 5 mph in the afternoon. |
| Wednesday Night |
Mostly clear, with a low around 54. Southwest wind around 6 mph becoming calm in the evening. |
| Thursday |
Sunny, with a high near 86. Calm wind becoming east southeast around 6 mph in the afternoon. |
| Thursday Night |
Mostly clear, with a low around 55. |
| Friday |
Sunny, with a high near 90. |
| Friday Night |
Clear, with a low around 58. |
| Independence Day |
Sunny, with a high near 94. |
| Saturday Night |
Mostly clear, with a low around 58. |
| Sunday |
Sunny, with a high near 92. |
| Sunday Night |
Partly cloudy, with a low around 57. |
| Monday |
Sunny, with a high near 91. |
Forecast from NOAA-NWS for Clearlake CA.
