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Upper Mattole School Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY | MONDAY |
 |  | | | |  | |  | | |
| Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 80°FHi: 27°C | Lo: 54°FLo: 12°C | Hi: 74°FHi: 23°C | Lo: 54°FLo: 12°C | Hi: 75°FHi: 24°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C Lo: 55°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 136 AM PDT Tue Sep 15 2026 
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Issued: 1205 AM PDT Tue Sep 15 2026
Key Messages
- Slightly warmer temperatures and northerly breezes are expected today.
- A weak frontal system arriving Wednesday will likely lead to cooler temperatures and generally unsettled weather with an increased chance for thunderstorm development
- Warmer temperatures and dry conditions return end of the week.
Discussion
...Warm temperatures remain inland as high pressure and weak upper level ridging remains over the areas today. This will result in strong winds for the coast and valleys inland w...