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Lightning Lake Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY |
 |  |  | | | | | | | | | |
| Mostly Clear | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 40°FLo: 4°C | Hi: 71°FHi: 22°C | Lo: 39°FLo: 4°C | Hi: 72°FHi: 22°C | Lo: 42°FLo: 6°C | Hi: 76°FHi: 24°C Lo: 44°FLo: 7°C | Hi: 76°FHi: 24°C Lo: 44°FLo: 7°C | Hi: 74°FHi: 23°C | Hi: 71°FHi: 22°C Lo: 40°FLo: 4°C | Hi: 71°FHi: 22°C Lo: 40°FLo: 4°C | Hi: 71°FHi: 22°C Lo: 40°FLo: 4°C | Hi: 71°FHi: 22°C Lo: 40°FLo: 4°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 PM MDT Thu Oct 01 2026 
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Issued: 551 PM MDT Thu Oct 1 2026
Key Messages
- Prolonged Quiet Weather Period: High pressure and dry air will keep eastern Idaho completely dry with minimal cloud cover through the workweek, upcoming weekend, and into early October.
- Unseasonable Late-Week Warmth: An amplifying Great Basin ridge will boost lower-elevation temperatures into the upper 70s and lower 80s starting today and continuing through the weekend.
- No Fall-Like Weather in Sight: High confidence exists for above-normal temperatures and suppressed precipitation ex...