Seattle is soaking up some honest-to-goodness spring sunshine on Sunday, April 5, 2026, with clear skies and temperatures near 48°F at Boeing Field. A mild afternoon is on tap, with partly sunny skies, a high around 64°F, and light north winds keeping things comfortable. The warmest readings will show up away from the waterfront, while coastal neighborhoods stay a bit cooler. Most of the region should remain dry through the day.
Afternoon Sunshine, Light North Winds
By midafternoon, most neighborhoods are expected to top out around 62–64°F, with north winds of about 6–7 mph and almost no chance of measurable rain. Temperatures are set to climb a bit higher on Monday, with highs near 68°F, before the pattern shifts Monday night. For full timing and meteorological fine print, see the NWS.
Monday Night Marine Push
An onshore marine push is expected Monday night into Tuesday that will deliver cooler air and breezy conditions to the coast, Admiralty Inlet, Whidbey Island, and the Strait of Juan de Fuca. Small craft advisory conditions look likely for parts of the coastal waters, and forecasters note a 30–50% probability of gale-force gusts in the Strait during the strongest push. Mariners and shoreline residents should keep an eye on updates and be ready for rough, steep seas Monday night. Check the NWS for marine timing and details.
Commute And Outdoor Plans
Some patchy fog or mist may slip into low-lying coastal and southwest locations early Sunday morning, but Seattle–Tacoma International and most city terminals should see minimal impacts. No river flooding is expected over the next seven days, so streams and lowland routes are not an issue right now. For most Seattle residents, that translates to cool mornings followed by sunny, pleasant afternoons, so layering up for the commute is still the smart move.
Looking Ahead
Tuesday will feel noticeably cooler with highs near 55°F before a dry northwesterly flow settles in midweek, bringing mostly sunny skies and highs in the upper 50s to low 60s. Forecasters say a few interior and valley spots could get chilly enough for frost on Wednesday and Thursday mornings, so gardeners may want to be ready to protect tender plants. Marine headlines will remain worth watching for any advisories, but the rest of the week looks generally dry through Friday.
