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Gresham Weather Forecast
| THIS AFTERNOON | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 |  |  | | |  | | | | |  |  |
| Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers |
| Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C |
| POP: 40% | POP: 70% | POP: 70% | POP: 20% | POP: 30% | POP: 40% | POP: 60% | POP: 60% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 147 PM EDT Fri Sep 18 2026 
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Issued: 127 PM EDT Fri Sep 18 2026
Key Messages
1)Lower rain chances for the weekend.
2) A cold front brings an unsettled Tuesday followed by more seasonable temperatures.
Discussion
... KEY MESSAGE 1...Lower rain chances for the weeendd.
KEY MESSAGE 1 DESCRIPTION...An area of showers and thunderstrorms should move across the area this evening associated with a front/trough. The northeast flow in the wake of the front lingers well into Sunday thus now limiting rain chances with lower instability. The best chances reside along the coas...