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Peterson Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Mostly Cloudy | Clearing | Clear | Sunny | Clear | Sunny | Clear | Clear | Clear | Partly Cloudy | Partly Cloudy | Chance of Showers |
| Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 56°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 56°FLo: 13°C | Hi: 90°FHi: 32°C | Lo: 57°FLo: 14°C | Hi: 88°FHi: 31°C Lo: 56°FLo: 13°C | Hi: 88°FHi: 31°C Lo: 56°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 54°FLo: 12°C | Hi: 79°FHi: 26°C Lo: 54°FLo: 12°C | Hi: 68°FHi: 20°C Lo: 47°FLo: 8°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 231 PM PDT Sun Oct 04 2026 
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Issued: 1257 AM PDT Mon Oct 5 2026
Key Messages
- A weak low-pressure system brings isolated light shower chances into Monday afternoon.
- Above-normal temperatures are expected to persist through late week, with daily record highs possible throughout the area.
- A cooling trend with low precipitation chances arrive this weekend, but confidence is low.
Discussion
...
A weak upper low pressure moves through the area today. This will bring a low 10-20% chance for showers and a lower <10% chance for thunderstorms. Main areas to watch out for precipitation today are the eastern Sierra stretching from Lassen County south through the Tahoe Basin and into Mono County. There is also a low 15% chance for precipitation this afternoon along the Sierra Front, including the greater Reno area. Because we have a dry airmass in place, any liquid amounts will be low, generally less than 0.10". The most any storms may do today is produce gusty winds up to 35 mph and virga.
Even with the upper low moving through the region, our temp...