Winchester, ID Weather & Growing Conditions
Tonight
51°F
Mostly Clear
Mostly clear, with a low around 51. Northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Mostly Clear | 3 mph NE | 1% |
| Sunday | 72°F | Sunny | 3 mph SE | 1% |
| Sunday Night | 53°F | Mostly Clear | 5 mph E | 0% |
| Monday | 75°F | Sunny | 5 mph SW | 0% |
| Monday Night | 55°F | Mostly Clear | 3 mph E | 0% |
| Tuesday | 73°F | Sunny | 5 mph SE | 6% |
| Tuesday Night | 52°F | Partly Cloudy | 1 to 5 mph W | 9% |
| Wednesday | 68°F | Mostly Sunny | 1 to 6 mph W | 4% |
| Wednesday Night | 48°F | Partly Cloudy | 2 to 6 mph NE | 4% |
| Thursday | 67°F | Mostly Sunny | 5 mph NE | 3% |
| Thursday Night | 48°F | Partly Cloudy | 5 mph NE | 8% |
| Friday | 64°F | Mostly Sunny | 2 to 7 mph N | 13% |
| Friday Night | 45°F | Slight Chance Rain Showers | 2 to 7 mph NW | 15% |
| Saturday | 59°F | Partly Sunny | 5 mph NW | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winchester, ID
Last spring frost
May 23
First fall frost
Sep 25
Growing season
121 days
Hardiness zone
6b
Explore more for Winchester, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Winchester, Id (12 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.