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Johnstonville Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY |
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| Partly Cloudy | Clearing | Chance of Showers | Chance of Showers | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 81°FHi: 27°C | Lo: 47°FLo: 8°C | Hi: 82°FHi: 28°C | Lo: 46°FLo: 8°C | Hi: 85°FHi: 29°C | Lo: 47°FLo: 8°C | Hi: 83°FHi: 28°C Lo: 46°FLo: 8°C | Hi: 83°FHi: 28°C Lo: 46°FLo: 8°C | Hi: 78°FHi: 26°C Lo: 42°FLo: 6°C | Hi: 78°FHi: 26°C Lo: 42°FLo: 6°C | Hi: 78°FHi: 26°C Lo: 42°FLo: 6°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 231 AM PDT Mon Sep 21 2026 
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Issued: 1214 AM PDT Mon Sep 21 2026
Key Messages
- Precipitation potential returns today, especially for the Sierra and south of US-50.
- Warming up and generally dry conditions are expected mid-week with temperatures 5 to 10 degrees above average.
- Increased winds and cooler temperatures return towards the end of the work week.
Discussion
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Upper level low observed in satellite imagery just off the West Coast is expected to move towards the Great Basin today. This system brings a 20-40% chance for showers mainly in areas south of US-50 ...