Weather WorldG P Reservoir, OR Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
G P Reservoir Weather Forecast
| THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  |  | | | | | | | | |
| Partly Sunny | Clearing | Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Sunny | Mostly Clear |
| Hi: 85°FHi: 29°C | Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C | Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C | Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 202 PM PDT Mon Aug 17 2026 
G P Reservoir Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
G P Reservoir Weather Map
G P Reservoir Quick Facts
G P Reservoir Forecast Discussion
Issued: 218 PM PDT Mon Aug 17 2026
Discussion
...Tonight through Saturday...Minimal changes to the forecast as dry and warm conditions continue through the week with minimal weather impacts. The large-scale pattern remains stagnant through the period as a cul looks to persist off of the OR/WA coast within the upper levels of the atmosphere. This is resulting in relatively calm winds and stagnant conditions. However, this pattern is at least maintaining northerly surface winds which will keep daytime h...