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Dayton, OR Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Dayton, a city in Yamhill County, Oregon.

Tonight
51°F
Mostly Clear then Patchy Fog
Patchy fog after 3am. Mostly clear. Low around 51, with temperatures rising to around 53 overnight. West northwest wind around 2 mph.

7-day forecast for Dayton

WhenTempForecastWindPrecip
Tonight 51°F Mostly Clear then Patchy Fog 2 mph WNW 0%
Saturday 79°F Areas Of Fog then Mostly Sunny 2 mph NNW 0%
Saturday Night 52°F Partly Cloudy 2 mph N 0%
Sunday 83°F Patchy Fog then Sunny 0 to 3 mph N 0%
Sunday Night 53°F Mostly Clear 0 to 3 mph NNW 0%
Monday 78°F Mostly Sunny 0 to 6 mph N 0%
Monday Night 52°F Partly Cloudy 0 to 6 mph N 0%
Tuesday 74°F Patchy Fog then Mostly Sunny 0 to 3 mph N 0%
Tuesday Night 50°F Partly Cloudy 0 to 5 mph N 0%
Wednesday 72°F Mostly Sunny 0 to 3 mph N 0%
Wednesday Night 51°F Partly Cloudy 0 to 3 mph N 2%
Thursday 75°F Mostly Sunny 0 to 3 mph N 6%
Thursday Night 52°F Slight Chance Light Rain 3 mph WNW 21%
Friday 69°F Mostly Sunny 1 to 8 mph WSW 12%

Forecast source: National Weather Service (api.weather.gov) for Dayton (45.220, -123.078). Updated through the day.

Growing snapshot for Dayton

Last spring frost
Apr 15
First fall frost
Oct 26
Growing season
195 days
Hardiness zone
8b

More local growing data for Dayton: nearby ZIP 97114 weather · frost dates · planting calendar · Oregon frost dates

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Climate data from the nearest NOAA station, Mcminnville Muni Ap, Or (2.8 mi from Dayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.