On Tuesday, Seattle residents can expect truly summer-like weather: thermometers could climb to 28°C, matching or even breaking the record set in May 2023. According to the National Weather Service forecast, the warming is caused by a ridge of high pressure that brought dry, sunny air to the region. Mostly clear skies are expected, but the situation will change overnight Tuesday into Wednesday: an approaching low pressure system will bring rain.
After the brief warm spell, more typical cool conditions will return to the region. Wednesday and Thursday temperatures will drop to about 17°C, and on Friday to 15°C. Thursday will likely be the only day without precipitation, but rain will resume by evening. Forecasters promise improvement by the weekend: conditions should become drier and more settled.
Based on: Seattle weather: Highs in the 80s on Tuesday could break daily record