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Morton, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Morton, a city in Lewis County, Washington.

This Afternoon
74°F
Sunny
Sunny. High near 74, with temperatures falling to around 72 in the afternoon. West wind around 2 mph.

7-day forecast for Morton

WhenTempForecastWindPrecip
This Afternoon 74°F Sunny 2 mph W 0%
Tonight 52°F Mostly Clear 2 mph N 0%
Sunday 77°F Sunny 3 mph WNW 0%
Sunday Night 53°F Partly Cloudy 2 mph NNE 0%
Monday 72°F Mostly Sunny 3 mph NW 0%
Monday Night 50°F Partly Cloudy 2 mph NNW 0%
Tuesday 66°F Partly Sunny 0 to 3 mph NW 0%
Tuesday Night 47°F Partly Cloudy 3 mph S 1%
Wednesday 63°F Partly Sunny 3 mph W 5%
Wednesday Night 47°F Mostly Cloudy 3 mph N 4%
Thursday 62°F Partly Sunny then Slight Chance Light Rain 1 to 5 mph NNE 16%
Thursday Night 47°F Slight Chance Light Rain 5 mph N 16%
Friday 59°F Slight Chance Light Rain 5 mph N 21%
Friday Night 45°F Slight Chance Light Rain 2 to 6 mph NNE 16%

Forecast source: National Weather Service (api.weather.gov) for Morton (46.557, -122.281). Updated through the day.

Growing snapshot for Morton

Last spring frost
Apr 24
First fall frost
Oct 15
Growing season
176 days
Hardiness zone
8b

More local growing data for Morton: nearby ZIP 98356 weather · frost dates · planting calendar · Washington frost dates

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Climate data from the nearest NOAA station, Glenoma, Wa (7.7 mi from Morton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.