Winchester, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winchester, a city in Nez Perce County, Idaho.
Overnight
48°F
Partly Cloudy
Partly cloudy. Low around 48, with temperatures rising to around 50 overnight. West wind around 3 mph.
7-day forecast for Winchester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Partly Cloudy | 3 mph W | 2% |
| Saturday | 68°F | Sunny | 3 to 7 mph NW | 3% |
| Saturday Night | 49°F | Mostly Clear | 5 mph SW | 3% |
| Sunday | 73°F | Sunny | 5 mph E | 0% |
| Sunday Night | 51°F | Mostly Clear | 2 to 6 mph SE | 0% |
| Monday | 75°F | Sunny | 6 mph S | 0% |
| Monday Night | 52°F | Mostly Clear | 2 to 6 mph SE | 0% |
| Tuesday | 74°F | Sunny | 6 mph NE | 3% |
| Tuesday Night | 50°F | Mostly Clear | 6 mph SE | 3% |
| Wednesday | 71°F | Sunny | 3 to 7 mph E | 4% |
| Wednesday Night | 47°F | Partly Cloudy | 2 to 7 mph SW | 4% |
| Thursday | 70°F | Mostly Sunny | 6 mph NE | 3% |
| Thursday Night | 47°F | Partly Cloudy | 6 mph W | 6% |
| Friday | 66°F | Mostly Sunny | 7 mph NW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Winchester (46.241, -116.624). Updated through the day.
Growing snapshot for Winchester
Last spring frost
May 23
First fall frost
Sep 25
Growing season
121 days
Hardiness zone
7a
More local growing data for Winchester: nearby ZIP 83524 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Winchester, Id (7.9 mi from Winchester). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.