Seattle Forecast: Highs Near 62-63°F on Sep 29
Seattle Forecast: Highs Near 62-63°F on Sep 29
US · Published Sep 29, 2026
• Seattle is expected to experience a high temperature near 62-63°F (16.7-17.2°C) on September 29, 2026, according to forecasts from the National Weather Service (NWS) and AccuWeather.
• This range aligns with climatological averages for late September in the Pacific Northwest, which typically hover in the low-to-mid 60s.

Impact & Risks

The expected high temperature of 62-63°F (16.7-17.2°C) is unlikely to pose significant risks to residents or infrastructure in Seattle. However, the marine influence and cloud cover may lead to cooler-than-average conditions, which could impact outdoor activities and require light layers for comfort. Additionally, the forecast includes measurable precipitation and scattered showers, which may cause minor disruptions to travel and outdoor plans. The tight temperature range also highlights the variability of Pacific Northwest weather, where small changes in atmospheric conditions can shift outcomes by a few degrees.

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