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Sumner, WA Weather Forecast

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Sumner, WA Weather Forecast

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Sumner WA weather - Clear - 71°F
Clear
71°F
Updated 5:47 pm
Feels Like 65°F
Humidity 40%
Wind N 0 mph
Barometer  30.02 in
Dew Point 46°F
Sumner WA weather - Clear - 22°C
Clear
22°C
Updated 5:47 pm
Feels Like 18°C
Humidity 40%
Wind N 0 km/h
Barometer  101.7 kPa
Dew Point 8°C
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Sumner Weather Forecast

TONIGHT SUNDAY SUNDAY NIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
Sumner, WA Weather - Tonight Mostly Clear Sumner, WA Weather - Sunday Mostly Sunny Sumner, WA Weather - Sunday Night Partly Cloudy Sumner, WA Weather - Labor Day Mostly Cloudy Sumner, WA Weather - Monday Night Partly Cloudy Sumner, WA Weather - Tuesday Mostly Sunny Sumner, WA Weather - Tuesday Night Mostly Clear Sumner, WA Weather - Wednesday Sunny Sumner, WA Weather - Wednesday Night Mostly Clear Sumner, WA Weather - Thursday Mostly Sunny Sumner, WA Weather - Thursday Night Partly Cloudy Sumner, WA Weather - Friday Chance Of Rain
Mostly Clear Mostly Sunny Partly Cloudy Mostly Cloudy Partly Cloudy Mostly Sunny Mostly Clear Sunny Mostly Clear Mostly Sunny Partly Cloudy Chance of Rain
Lo: 50°FLo: 10°C Hi: 66°FHi: 19°C
 Lo: 55°FLo: 13°C Hi: 66°FHi: 19°C
 Lo: 55°FLo: 13°C Hi: 73°FHi: 23°C
 Lo: 53°FLo: 12°C Hi: 76°FHi: 24°C
 Lo: 57°FLo: 14°C Hi: 77°FHi: 25°C
 Lo: 55°FLo: 13°C Hi: 73°FHi: 23°C
POP = Probability of Precipitation.
Weather Outlook Updated: 236 PM PDT Sat Sep 05 2026 Sumner, WA Weather - WeatherWorld.com

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Issued: 416 PM PDT Sat Sep 5 2026

Aviation

... Variable flow will continue as an upper level low continues to wobble over western Washington this afternoon. VFR conditions at all terminals this afternoon with generally light and variable winds across terminals. Shower and thunderstorm chances will exist once again, but should be confined to the Cascades, with largely no impacts to any terminals this evening. Winds will start taking a more N/NE direction this evening, but will continue to remain light. VFR conditions will continue...