Jimmy Spring Reservoir, OR Weather Forecast
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Jimmy Spring Reservoir Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | MONDAY NIGHT |
| Mostly Clear | Mostly Sunny | Mostly Clear | Sunny | Increasing Clouds | Mostly Cloudy | Mostly Cloudy | Clearing | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy |
| Lo: 61°FLo: 16°C | Hi: 95°FHi: 35°C | Lo: 62°FLo: 17°C | Hi: 98°FHi: 37°C | Lo: 65°FLo: 18°C | Hi: 96°FHi: 36°C Lo: 64°FLo: 18°C | Hi: 96°FHi: 36°C Lo: 64°FLo: 18°C | Hi: 92°FHi: 33°C | Hi: 89°FHi: 32°C Lo: 58°FLo: 14°C | Hi: 89°FHi: 32°C Lo: 58°FLo: 14°C | Hi: 91°FHi: 33°C Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C Lo: 61°FLo: 16°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 PM MDT Tue Aug 18 2026 

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Issued: 232 PM MDT Tue Aug 18 2026
Key Messages
- Temperatures warming through the end of the week with lower elevations around 100 degrees Thursday and Friday.
- Increased chance of showers and thunderstorms over higher terrain this weekend and into next week.
Aviation
/18Z Tuesday through Wednesday/... Issued 1120 AM MDT TUE AUG 18 2026
VFR with mid-high clouds across far SE Oregon and southern Idaho. Scattered afternoon cumulus in mtns with isolated showers/thunderstorms north and east of KMYL and higher ...
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