Dayton, ID Weather & Growing Conditions
This Afternoon
50°F
Partly Sunny
Partly sunny. High near 50, with temperatures falling to around 47 in the afternoon. East southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Partly Sunny | 3 mph ESE | 0% |
| Tonight | 33°F | Mostly Cloudy | 5 mph N | 3% |
| Wednesday | 52°F | Mostly Cloudy | 5 mph N | 7% |
| Wednesday Night | 30°F | Areas Of Fog | 3 mph N | 0% |
| Thursday | 49°F | Areas Of Fog then Slight Chance Light Rain | 1 to 5 mph S | 19% |
| Thursday Night | 30°F | Slight Chance Light Rain then Areas Of Fog | 2 mph NNW | 19% |
| Friday | 50°F | Mostly Sunny | 5 mph WNW | 1% |
| Friday Night | 30°F | Partly Cloudy | 2 mph E | 1% |
| Saturday | 53°F | Sunny | 0 to 3 mph SE | 0% |
| Saturday Night | 32°F | Mostly Clear | 2 mph SE | 0% |
| Sunday | 57°F | Sunny | 1 to 7 mph SSE | 0% |
| Sunday Night | 35°F | Partly Cloudy | 2 mph ESE | 0% |
| Monday | 58°F | Mostly Sunny | 5 mph ESE | 1% |
| Monday Night | 36°F | Partly Cloudy | 2 mph ESE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dayton, ID
Last spring frost
May 16
First fall frost
Sep 28
Growing season
133 days
Hardiness zone
6a
Explore more for Dayton, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Preston, Id (7.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.