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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
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.