Weather WorldAppendix Lake, ID Weather Forecast
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Appendix Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  | | | | |  | | |  |  |  |
| Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Partly Cloudy | Chance of Rain | Chance of Rain |
| Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 46°FLo: 8°C | Hi: 77°FHi: 25°C | Lo: 50°FLo: 10°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 46°FLo: 8°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C |
| POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1122 AM PDT Wed Oct 14 2026 
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Issued: 1210 PM MDT Wed Oct 14 2026
Discussion
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KEY MESSAGES:- Cold mornings and pleasant afternoons the rest of the week.
- Gusty winds and choppy lakes on Saturday, especially northwest MT.
-Pattern shift early next week, gradually cooling and a chance of showers.
Today through Friday: A weak passing disturbance will produce transient mid- to high-level cloud cover across the Northern Rockies through this evening. Expect significant clearing by this evening, paving the way for strong radiational cooling and a chilly, seasonable nigh...