National Weather Service United States Department of Commerce

A stalled frontal boundary and ample monsoonal moisture will lead to flash flood potential from the Great Basin to the Great Plains tonight and Tuesday

A stalled frontal boundary will set up along the southern and central Rockies for the next couple of days providing focus for showers and thunderstorms. In addition, ample monsoonal moisture will stream in across the southwest bringing enough moisture to introduce a flash flood threat from the Great Basin and Southwest eastward across the central and southern Rockies into the adjacent Plains.
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Current Conditions

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Seatac WA

7 Day Forecast

For More Weather Information:

Seattle, WA Local Forecast Office

Overnight

Mostly Clear

Mostly
Clear

Low: 58 °F

Tuesday

Sunny

Sunny

High: 86 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 59 °F

Wednesday

Mostly Sunny

Mostly
Sunny

High: 83 °F

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: 59 °F

Thursday

Sunny

Sunny

High: 82 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 59 °F

Friday

Mostly Sunny

Mostly
Sunny

High: 84 °F

Friday
Night

Mostly Clear

Mostly
Clear

Low: 59 °F

Detailed Forecast

  • Overnight Mostly clear, with a low around 58. North northeast wind around 7 mph.
  • Tuesday Sunny, with a high near 86. North wind 6 to 9 mph.
  • Tuesday Night Mostly clear, with a low around 59. North northeast wind 7 to 11 mph.
  • Wednesday Mostly sunny, with a high near 83. North wind around 6 mph.
  • Wednesday Night Mostly clear, with a low around 59. North northeast wind 9 to 11 mph.
  • Thursday Sunny, with a high near 82.
  • Thursday Night Partly cloudy, with a low around 59.
  • Friday Mostly sunny, with a high near 84.
  • Friday Night Mostly clear, with a low around 59.
  • Saturday Sunny, with a high near 86.
  • Saturday Night Mostly clear, with a low around 59.
  • Sunday Sunny, with a high near 86.
  • Sunday Night Mostly clear, with a low around 59.
  • Monday Mostly sunny, with a high near 83.