Heat Advisory

* WHAT...Hot conditions with high temperatures up to 85 to 90 degrees and low temperatures down to 60 to 65 degrees expected This will pose a moderate risk of heat-related illness.

* WHERE...Foothills and Valleys of the North Cascades, Eastside, Foothills and Valleys of Central King County, Foothills and Valleys of Pierce and Southern King Counties, Foothills and Valleys of Snohomish and Northern King Counties, and Foothills and Valleys of Thurston and Lewis Counties.

* WHEN...From 11 AM Sunday to 5 AM PDT Tuesday.

* IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

* ADDITIONAL DETAILS...The warmest daytime high temperatures are expected Monday afternoon and the warmest overnight lows are expected Monday night into Tuesday morning.

Tuesday, Jun 16, 5:00 AM PDT
Clear
67°
Feels 67°
 41%
Dewpt 43°
 ne
3 - 5 mph
Tuesday, Jun 16
Partly cloudy throughout the day.
61 76 61 - 76
Wednesday, Jun 17
Partly cloudy throughout the day.
55 75 55 - 75
Thursday, Jun 18
Clear conditions throughout the day.
55 79 55 - 79
Friday, Jun 19
Partly cloudy throughout the day.
59 80 59 - 80
Saturday, Jun 20
Clear conditions throughout the day.
58 76 58 - 76
Sunday, Jun 21
Clear conditions throughout the day.
58 78 58 - 78
Monday, Jun 22
Clear conditions throughout the day.
60 83 60 - 83
Tuesday, Jun 23
Partly cloudy throughout the day.
55 85 55 - 85
Wednesday, Jun 24
Cloudy skies throughout the day.
51 72 51 - 72
Thursday, Jun 25
Partly cloudy throughout the day.
50 74 50 - 74
Friday, Jun 26
Partly cloudy throughout the day.
49 73 49 - 73
Saturday, Jun 27
Partly cloudy throughout the day.
53 71 53 - 71
Sunday, Jun 28
Partly cloudy throughout the day.
52 70 52 - 70
Monday, Jun 29
Partly cloudy throughout the day.
50 70 50 - 70
Tuesday, Jun 30
Partly cloudy throughout the day.
47 68 47 - 68
Weather forecast for Seattle, WA on Tue, 16 Jun 2026 08:08:43 GMT