Seattle, WA – Washington drivers should brace for slick roads and reduced visibility as a strong stretch of fall rain builds Monday morning. The wet pattern could cause backups along I-5 and other King County routes during peak commuting hours.
According to the National Weather Service, Seattle faces a 60% chance of rain late Sunday before the system strengthens Monday with an 80% likelihood. South winds up to 8 mph will add to difficult driving, while steady rainfall continues into Tuesday. New rainfall amounts could exceed a quarter inch by Monday evening.
Monday’s high will stay near 66°F before temperatures dip to the mid-50s overnight. Rain is expected to remain widespread Tuesday, with precipitation chances at 70%. Those traveling across Puget Sound and through Snohomish and Pierce counties should allow extra time and watch for ponding on highways.
The unsettled stretch will linger through Wednesday as October begins, keeping clouds and cooler air in place. This shift marks the region’s first prolonged fall weather pattern of the season, a signal that drier September days are ending.
Residents are urged to keep storm drains clear, use headlights during heavy showers, and plan for slower commutes through midweek. More advisories could be issued if rainfall rates increase or localized flooding develops.
Five Day Forecast for Seattle, WA
- Saturday: Becoming sunny, high near 74°F.
- Sunday: Mostly cloudy, high near 73°F.
- Monday: Rain likely, high 66°F, low 54°F.
- Tuesday: Rain likely, high near 68°F.
- Wednesday: Rain, high near 65°F, cloudy into evening.
