| National Weather Service Forecast for:
Clearlake CA Issued by: National Weather Service Eureka, CA |
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| Updated: 2:10 am PDT Jun 22, 2026 | ||||||||||||||||||
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| Overnight |
Mostly clear, with a low around 57. Calm wind. |
| Monday |
Sunny, with a high near 93. Calm wind becoming east southeast around 6 mph in the afternoon. |
| Monday Night |
Mostly clear, with a low around 57. West wind 5 to 9 mph becoming calm in the evening. |
| Tuesday |
Sunny, with a high near 94. Calm wind becoming south southwest around 6 mph in the afternoon. |
| Tuesday Night |
Clear, with a low around 58. West southwest wind 5 to 7 mph becoming calm in the evening. |
| Wednesday |
Sunny, with a high near 95. Calm wind becoming south southwest around 5 mph in the afternoon. |
| Wednesday Night |
Clear, with a low around 57. |
| Thursday |
Sunny, with a high near 92. |
| Thursday Night |
Mostly clear, with a low around 54. |
| Friday |
Sunny, with a high near 83. |
| Friday Night |
Mostly clear, with a low around 52. Breezy. |
| Saturday |
Sunny, with a high near 82. |
| Saturday Night |
Clear, with a low around 52. |
| Sunday |
Sunny, with a high near 87. |
Forecast from NOAA-NWS for Clearlake CA.
