Winchester, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winchester, a city in Nez Perce County, Idaho.
Today
50°F
Mostly Cloudy
Mostly cloudy. High near 50, with temperatures falling to around 42 in the afternoon. West wind around 3 mph.
7-day forecast for Winchester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Mostly Cloudy | 3 mph W | 3% |
| Tonight | 32°F | Mostly Cloudy | 3 mph SW | 3% |
| Wednesday | 49°F | Sunny | 3 mph W | 1% |
| Wednesday Night | 35°F | Mostly Cloudy then Rain Showers Likely | 2 to 6 mph S | 56% |
| Thursday | 46°F | Rain Showers Likely | 2 to 7 mph SW | 56% |
| Thursday Night | 32°F | Partly Cloudy | 2 to 8 mph S | 2% |
| Friday | 50°F | Partly Sunny | 5 to 9 mph S | 8% |
| Friday Night | 37°F | Mostly Cloudy | 5 to 9 mph S | 8% |
| Saturday | 58°F | Partly Sunny | 8 mph S | 2% |
| Saturday Night | 40°F | Mostly Cloudy | 6 to 13 mph S | 8% |
| Sunday | 55°F | Slight Chance Rain Showers | 5 to 12 mph SW | 16% |
| Sunday Night | 37°F | Mostly Cloudy | 6 mph S | 12% |
| Monday | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph SE | 18% |
| Monday Night | 38°F | Slight Chance Rain Showers | 2 to 7 mph SW | 18% |
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 Nov 3, 2026.