Winchester, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winchester, a city in Nez Perce County, Idaho.
Today
68°F
Sunny
Sunny. High near 68, with temperatures falling to around 66 in the afternoon. Northwest wind 3 to 7 mph.
7-day forecast for Winchester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Sunny | 3 to 7 mph NW | 3% |
| Tonight | 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% |
| Friday Night | 43°F | Slight Chance Rain Showers | 7 mph W | 22% |
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.