Harry A Merlo State Recreation Area, CA Weather Forecast
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Harry A Merlo State Recreation Area Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
| Patchy Fog | Chance of Rain | Patchy Fog | Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Cloudy | Patchy Fog | Chance of T-Storm | Patchy Fog | Chance of Rain | Chance of Rain |
| Hi: 67°FHi: 19°C | Lo: 54°FLo: 12°C | Hi: 67°FHi: 19°C | Lo: 52°FLo: 11°C | Hi: 68°FHi: 20°C | Lo: 53°FLo: 12°C | Hi: 66°FHi: 19°C | Lo: 53°FLo: 12°C | Hi: 66°FHi: 19°C | Lo: 53°FLo: 12°C | Hi: 66°FHi: 19°C | Lo: 55°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 136 AM PDT Fri Aug 28 2026 

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Issued: 425 AM PDT Fri Aug 28 2026
Key Messages
- Tropical moisture has arrived and cause a light shower or two for Mendocino & Lake Counties through early Friday afternoon.
- Interior areas continue to experience near or slightly below normal temperatures through this weekend.
- Coastal areas continue to see overnight stratus with afternoon clearing.
Discussion
...Water Vapor IR satellite imagery shows a stream of moisture flowing over the region this morning as the remnants of Tropical Storm Iselle move downstream along the upper level ...
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