Dayton, WA Weather & Growing Conditions
Overnight
54°F
Mostly Clear
Mostly clear, with a low around 54. Southeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Mostly Clear | 2 mph SE | 0% |
| Saturday | 76°F | Sunny | 5 mph W | 0% |
| Saturday Night | 54°F | Mostly Clear | 5 mph E | 1% |
| Sunday | 80°F | Sunny | 5 mph NW | 0% |
| Sunday Night | 57°F | Mostly Clear | 5 mph SE | 0% |
| Monday | 81°F | Sunny | 2 to 6 mph SW | 0% |
| Monday Night | 57°F | Mostly Clear | 3 mph S | 0% |
| Tuesday | 78°F | Sunny | 2 to 6 mph SW | 0% |
| Tuesday Night | 54°F | Mostly Clear | 5 mph SW | 1% |
| Wednesday | 74°F | Sunny | 6 mph SW | 1% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 6 mph SW | 2% |
| Thursday | 73°F | Mostly Sunny | 5 mph W | 3% |
| Thursday Night | 53°F | Partly Cloudy | 3 mph S | 4% |
| Friday | 69°F | Mostly Sunny then Slight Chance Rain Showers | 1 to 6 mph SW | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dayton, WA
Last spring frost
Apr 28
First fall frost
Oct 13
Growing season
168 days
Hardiness zone
7a
Explore more for Dayton, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Dayton 1 Wsw, Wa (6.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.