Hills Reservoir, OR Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Hills Reservoir Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
| Chance of T-Storm | Mostly Cloudy | Patchy Fog | Mostly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear |
| Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C | Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 501 AM PDT Sat Aug 15 2026 

Hills Reservoir Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Hills Reservoir Weather Map
Hills Reservoir Quick Facts
Hills Reservoir Forecast Discussion
Issued: 448 AM PDT Sat Aug 15 2026
Discussion
...Today through Friday...Radar imagery as of early Saturday afternoon depicts isolated showers across the Cascades due to an unstable layer in the mid-levels of the atmosphere. This instability remains above an inversion present around 3000-5000 ft. Mesoanalysis suggests MUCAPE values are currently 100-250 J/kg across interior valleys and the Cascades, which is supporting convection. Vorticity from an upper level trough as well as monsoonal moisture from ...
Weather World