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City of Rio Dell, CARio Dell, CA Weather Forecast
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Rio Dell Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 | | | | | |  |  |  |  | | |
| Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Mostly Cloudy | Mostly Cloudy | Chance of Rain | Chance of Rain | Mostly Cloudy | Mostly Cloudy |
| Lo: 53°FLo: 12°C | Hi: 67°FHi: 19°C | Lo: 53°FLo: 12°C | Hi: 67°FHi: 19°C | Hi: 68°FHi: 20°C Lo: 52°FLo: 11°C | Hi: 68°FHi: 20°C Lo: 52°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 52°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 52°FLo: 11°C | Lo: 53°FLo: 12°C | Hi: 65°FHi: 18°C | Hi: 65°FHi: 18°C Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C Lo: 50°FLo: 10°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 136 PM PDT Sun Sep 20 2026 
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Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 248 PM PDT Sun Sep 20 2026
Key Messages
- Warmer and drier interior temperatures begin to slowly ease on Monday.
- A shallow but strong marine layer along shore will weaken with some clearing by possible by Tuesday.
- Cold front late in the week with a 20% chance of light wetting rain along the North Coast.
Discussion
...High pressure peaked across the area today. Many interior valleys reach into the upper 80s, though some passing upper level clouds took the edge off heat, especially for the southern half of the area. A persistent...