J Oliver Reservoir, MT Weather Forecast
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J Oliver Reservoir Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Mostly Sunny | Chance of T-Storm | Clouds | Smoke | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Chance of T-Storm | Mostly Sunny | Chance of T-Storm |
| Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 55°FLo: 13°C | Hi: 91°FHi: 33°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C |
| POP: 30% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1252 AM MDT Tue Aug 18 2026 

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Issued: 1230 AM MDT Tue Aug 18 2026
Key Messages
- Scattered showers and thunderstorms expected again today. A few storms could be strong to severe.
- Drier conditions Wednesday and Thursday.
- Seasonal temps in the 80s through midweek, pushing into the lower 90s by late week. Increasing chance of precipitation Friday through the weekend.
Discussion
...
Today through Monday...
The lingering showers and storms around now will gradually decrease by sunrise this morning. Another round of storms is forecast this aft...
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