Clayton, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clayton, a city in Custer County, Idaho.
Today
70°F
Chance Light Rain then Slight Chance Showers And Thunderstorms
A chance of rain before 9am, then a slight chance of showers and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 70. Northeast wind around 5 mph. Chance of precipitation is 30%.
7-day forecast for Clayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Chance Light Rain then Slight Chance Showers And Thunderstorms | 5 mph NE | 31% |
| Tonight | 46°F | Slight Chance Light Rain then Partly Cloudy | 5 mph SSE | 16% |
| Sunday | 75°F | Mostly Sunny | 2 to 7 mph WSW | 0% |
| Sunday Night | 45°F | Mostly Clear | 5 mph SE | 1% |
| Monday | 80°F | Sunny | 6 mph SSW | 1% |
| Monday Night | 47°F | Partly Cloudy | 6 mph W | 1% |
| Tuesday | 80°F | Mostly Sunny | 7 mph SSW | 2% |
| Tuesday Night | 46°F | Partly Cloudy | 7 mph WSW | 5% |
| Wednesday | 81°F | Sunny | 8 mph SSW | 3% |
| Wednesday Night | 46°F | Partly Cloudy | 8 mph SSW | 2% |
| Thursday | 82°F | Sunny | 6 to 9 mph S | 3% |
| Thursday Night | 47°F | Partly Cloudy | 7 to 10 mph SSW | 1% |
| Friday | 81°F | Mostly Sunny | 6 to 12 mph S | 4% |
| Friday Night | 46°F | Partly Cloudy | 7 to 12 mph SW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Clayton (44.259, -114.383). Updated through the day.
Growing snapshot for Clayton
Growing season
29 days
Hardiness zone
5b
More local growing data for Clayton: nearby ZIP 83227 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Stanley Rs, Id (21.4 mi from Clayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.