Cheatgrass Reservoir, ID Weather Forecast
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Cheatgrass Reservoir Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Mostly Sunny | Cloudy | Chance of Showers | Chance of Showers | Rain Showers | Chance of T-Storm | Rain Showers | Rain Showers | Sunny | Increasing Clouds | Patchy Fog | Patchy Fog |
| Hi: 60°FHi: 16°C | Lo: 42°FLo: 6°C | Hi: 59°FHi: 15°C | Lo: 40°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 40°FLo: 4°C | Hi: 48°FHi: 9°C | Lo: 32°FLo: 0°C | Hi: 49°FHi: 9°C | Lo: 31°FLo: -1°C | Hi: 54°FHi: 12°C Lo: 33°FLo: 1°C | Hi: 54°FHi: 12°C Lo: 33°FLo: 1°C |
| POP: 30% | POP: 30% | POP: 30% | POP: 90% | POP: 80% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 AM MDT Thu Oct 29 2026 

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Issued: 120 AM MDT Thu Oct 29 2026
Key Messages
- Dry Today, with near normal temperatures.
- Precipitation chances increasing across higher terrain Friday afternoon. Becoming widespread Saturday afternoon into Sunday.
- A drying and warming trend will set in Monday, through at least midweek.
Aviation
/06Z Thursday through Friday/... Issued 1123 PM MDT WED OCT 28 2026
Generally VFR. Localized LIFR/IFR conditions with patchy freezing fog and low stratus in high elevation valleys in southeast Oregon. Mountains obscured in fog and low stratus...
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