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Flat Lake Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
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| Rain and Snow | Rain and Snow | Partly Cloudy | Rain and Snow | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Rain and Snow | Rain and Snow | Partly Cloudy |
| Lo: 30°FLo: -1°C | Hi: 46°FHi: 8°C | Lo: 26°FLo: -3°C | Hi: 46°FHi: 8°C | Lo: 26°FLo: -3°C | Hi: 46°FHi: 8°C Lo: 26°FLo: -3°C | Hi: 46°FHi: 8°C Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C Lo: 26°FLo: -3°C | Hi: 45°FHi: 7°C Lo: 26°FLo: -3°C | Hi: 46°FHi: 8°C |
| POP: 40% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1217 AM PDT Mon Oct 26 2026 
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Issued: 1025 PM PDT Sun Oct 25 2026
Key Messages
- Persistent low pressure this week brings active/beneficial weather with mainly low impacts.
- Beneficial rainfall along/west of Cascades today through Tuesday. Snow levels lower to around 5000-5500 ft tonight, bringing 2-4" of snow around Diamond/Crater Lake area.
- Temperatures trend cooler Monday, remaining steady through the week and hovering around 10-15 degrees below normal.
- Low pressure for the latter half of the week into the weekend brings continued shower chances mainly west of ...