Seattle, WA – Western Washington will see a dramatic shift in weather this weekend, as heavy rain and possible thunderstorms target the Seattle area by Monday. Drivers along I-5 should prepare for slick pavement and reduced visibility during the Monday morning and evening commutes.
According to the National Weather Service, widespread showers will develop Sunday into Monday, with the heaviest rain falling between late morning and mid-afternoon Monday. Some storms could produce brief downpours, making travel challenging in King, Snohomish, and Pierce counties. Rainfall amounts will generally stay below half an inch, but isolated thunderstorms could deliver higher totals in short bursts.
Seattle’s Monday high will reach near 70 degrees before a drying trend begins Tuesday. By early next week, a stretch of calmer, sunnier weather will take hold across the region, though low clouds and patchy fog may linger overnight.
Residents are encouraged to allow extra travel time Monday, especially along I-5 and Highway 520, where traffic is expected to slow under wet conditions. With cooler nights settling in, temperatures will dip into the low 50s, a reminder that fall has fully arrived.
Showers could return late next week, but forecasters expect mostly dry days Tuesday through Thursday. Any rainfall should remain light until another storm system approaches by Friday.
Warnings remain in place for wet roads and reduced visibility Monday, and additional advisories could be issued if storms intensify.
Five-Day Forecast for Seattle, WA:
- Sunday: Showers and possible thunderstorms. High near 66. Low 52.
- Monday: Rain and storms likely midday. High near 70. Low 53.
- Tuesday: Sunny skies. High near 73. Low 54.
- Wednesday: Mostly sunny. High near 72. Low 53.
- Thursday: Slight chance of rain. High near 69. Low 54.
