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City of Rupert, IDRupert, ID Weather Forecast
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Rupert Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  |  |  | | |  | | | | |
| Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Sunny | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Sunny | Mostly Clear | Mostly Clear | Partly Cloudy |
| Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 72°FHi: 22°C | Lo: 48°FLo: 9°C | Hi: 78°FHi: 26°C | Hi: 78°FHi: 26°C Lo: 52°FLo: 11°C | Hi: 78°FHi: 26°C Lo: 52°FLo: 11°C | Hi: 80°FHi: 27°C | Hi: 82°FHi: 28°C Lo: 51°FLo: 11°C | Hi: 82°FHi: 28°C Lo: 51°FLo: 11°C | Lo: 53°FLo: 12°C |
| POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 PM MDT Fri Sep 18 2026 
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Issued: 201 PM MDT Fri Sep 18 2026
Key Messages
- Heavy rainfall is possible across most of central and eastern Idaho is expected through tonight, and to a lesser extent Saturday
- Strong to severe storms possible with hail and gusty winds into this evening
- Mostly dry conditions expected through next week, with a few showers and storms possible
Discussion
... Issued at 1116 AM MDT Fri Sep 18 2026
The strong upper low to our west continues to slowly shift east and will moves across the state tonight and tomorrow. The airmass contains a lo...