Fountains, ID Weather Forecast
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Fountains Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
| Windy | Hazy | Clearing | Mostly Clear | Sunny | Mostly Clear | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 73°FHi: 23°C | Lo: 40°FLo: 4°C | Hi: 85°FHi: 29°C | Lo: 46°FLo: 8°C | Hi: 83°FHi: 28°C | Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Hi: 70°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 40°FLo: 4°C |
| POP: 40% | POP: 30% | POP: 50% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 350 AM PDT Sat Aug 29 2026 

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Issued: 359 AM PDT Sat Aug 29 2026
Key Messages
- Cooler temperatures and potential for mountain showers and thunderstorms on Saturday.
- Temperatures warm briefly Monday and Tuesday, then return to below seasonal normals by the middle of next week.
Discussion
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Saturday through Sunday: A deep low pressure system right on the coast of British Columbia will move southward and into the PNW in the early hours of Saturday, bringing a chance for precipitation in the mountains. The northern mountains and northern Cascade crest have a 40 perc...
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