Jack Lake, OR Weather Forecast
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Jack Lake Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Mostly Cloudy | Sunny | Mostly Clear | Sunny | Clear | Clear | Clear | Sunny | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Sunny |
| Lo: 50°FLo: 10°C | Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C Lo: 46°FLo: 8°C | Lo: 40°FLo: 4°C | |||||
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 PM PDT Sun Oct 04 2026 

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Issued: 346 AM PDT Mon Oct 5 2026
Key Messages
- Upper level high pressure over the region will continue to bring dry conditions and above normal temperatures through Thursday
- Locally breezy winds through the Cascade Gaps Monday afternoon
- Growing potential for mountain showers Friday into next weekend
Discussion
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A broad flat upper ridge was positioned across the western US with a tighter upper level height gradient and zonal flow from northern WA into the western Canada. This is a warm pattern for the Interior NW and Today is the ...
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