Weather WorldTri, WA Weather Forecast
314 N Underwood St, Kennewick, WA 99336 (509)783-6014 Golf Course Type: Semi-Private Holes: 18Quick Weather Clicks
Settings
Sun & Moon
Tri Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  | |  | | |  | | | | |
| Mostly Clear | Chance of Showers | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Partly Cloudy |
| Lo: 46°FLo: 8°C | Hi: 73°FHi: 23°C | Lo: 50°FLo: 10°C | Hi: 77°FHi: 25°C | Lo: 50°FLo: 10°C | Hi: 76°FHi: 24°C | Hi: 76°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 76°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C Lo: 55°FLo: 13°C | Lo: 57°FLo: 14°C | Hi: 80°FHi: 27°C |
| POP: 40% | POP: 20% | POP: 50% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Fri Sep 04 2026 
Tri Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Tri Weather Map
Tri Quick Facts
Tri Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 314 PM PDT Fri Sep 4 2026
Key Messages
- Much cooler than average temperatures persist into the weekend as much as 8-12 degrees with a warming trend beginning Monday into mid-week.
- Unsettled weather with low chances of thunderstorms (15-25%) persisting into early next week.
- Little to low fire weather concerns owing to elevated afternoon humidity and showery weather.
Discussion
... Latest water vapor imagery shows a complex mid- level closed low over northwest OR with a shortwave trough moving into southeast BC. Additional emb...