Seattle, Washington Weather Alert Today: Patchy Fog Now, Rain Returns by Friday

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Washington – Streetlights glow through lingering fog across Seattle this morning as cool air settles over the city. Pavement stays dry for now, but moisture hangs in the air, muting skylines and slowing early traffic near the waterfront and downtown core.

According to the National Weather Service in Seattle, fog thins after sunrise as skies turn mostly sunny. Afternoon highs climb into the low 50s, offering a brief break before clouds rebuild tonight. Patchy fog may return late, especially in low-lying neighborhoods and near Puget Sound.

Wednesday brings another mild but cool day. Morning fog clears, followed by partial sunshine and highs near 50. That break does not last long. Clouds thicken again Wednesday night as the next Pacific system approaches Western Washington.

By Thursday evening, rain chances rise near 30 percent, increasing further by Friday. Steady rain is likely during the day Friday, with highs near 49. Wet roads and reduced visibility could slow travel along I-5, I-90, and Highway 99. Plan extra time and expect spray during commutes.

Colder air sneaks in behind the rain late Friday and into the weekend. While downtown Seattle mainly sees rain, nearby hills could flirt with a rain-and-snow mix by Saturday night as temperatures dip into the mid-30s. Even minor slushy accumulation can cause slick spots, especially after sunset.

Valentine’s Day weekend trends cooler and unsettled, but not extreme. Looking beyond, NOAA’s 6–10 day outlook points toward above-normal temperatures returning early next week. That warming signal hints at a late-February thaw, easing wintry concerns after this brief dip.

Five-Day Outlook for Seattle, WA

  • Today: Morning fog, then sunny; high near 53
  • Wednesday: Patchy fog, partial sun; high near 50
  • Thursday: Increasing clouds, late rain chance; high near 51
  • Friday: Rain likely; high near 49
  • Saturday: Mostly cloudy, cooler; high near 47