Daily Forecast for SeaTac, Washington

Cloudy skies with chances of rain throughout the week

Published on Feb. 27, 2026

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The 10-day weather forecast for SeaTac, Washington 98188 shows a mix of cloudy skies, occasional rain showers, and some sunny intervals. Temperatures are expected to range from lows around 40°F to highs in the low to mid 50s Fahrenheit.

Why it matters

This detailed weather forecast helps residents and visitors in the SeaTac area plan their activities and prepare for the changing conditions throughout the week.

The details

The forecast calls for cloudy skies with chances of rain showers on most days. Winds are expected to be light, ranging from 5-15 mph, primarily from the south and southwest. Temperatures will be moderate, with highs in the low to mid 50s Fahrenheit and overnight lows around 40°F.

  • The forecast is valid as of 4:57 AM UTC on February 27, 2026.
  • Overnight lows are expected to range from the mid 30s to low 40s Fahrenheit.
  • Daytime highs are forecast to be in the low to mid 50s Fahrenheit.

The players

SeaTac, Washington 98188

A city located in King County, Washington, near the Seattle-Tacoma International Airport.

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The takeaway

This detailed weather forecast for SeaTac, Washington provides valuable information for residents and visitors to plan their activities and prepare for the changing conditions throughout the week.