Seattle weather: Sunny, warm start to the week

Published June 22, 2026 3:16 PM PDT

Temperatures are already running about 10 degrees warmer Monday than compared to Sunday. The offshore flow will continue to take over and the winds shift throughout the day. We will see a few high clouds around the Puget Sound lowlands, slightly more along the coast, but not enough to help shield us from the warm summer sun.

A few highs clouds around the region tonight.

A few high clouds expected overnight with offshore flow keeping us mild.

A Heat Advisory went into effect at 11 a.m. Monday, and we aren't expecting too much relief during the overnight hours. Temperatures will remain mild near 60 degrees by early Tuesday morning.

Forecast lows around Western Washington.

Mild overnight lows will make for uncomfortable sleeping weather tonight. 

A strong ridge will be overhead the next few days, keeping us hot and dry through Wednesday. The offshore flow will be the strongest with the ridge directly overhead on Tuesday, making that day the warmest of the week.

High pressure ridge keeping us hot and dry.

A strong ridge will be overhead the next few days, keeping us hot and dry through Wednesday. 

Hot temperatures in Seattle this week

The FOX 13 Weather Team has issued a weather alert day for Tuesday and Wednesday as the days will be the hottest of the stretch during this time with mild overnight lows. We finally see some much-needed rain by the end of the week!

The extended forecast for the Seattle Metro area.

A toasty start to the week with much-needed rain on the way by the end of the week.  (FOX13 Seattle)

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The Source: Information in this story comes from weather models interpreted by the FOX 13 Seattle weather team.

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