Midvale, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Midvale, a city in Washington County, Idaho.
This Afternoon
56°F
Mostly Cloudy
Mostly cloudy, with a high near 56. South southeast wind around 2 mph.
7-day forecast for Midvale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Mostly Cloudy | 2 mph SSE | 2% |
| Tonight | 34°F | Mostly Cloudy | 1 mph NW | 9% |
| Wednesday | 59°F | Sunny | 0 to 3 mph WSW | 1% |
| Wednesday Night | 34°F | Mostly Cloudy then Slight Chance Rain Showers | 1 mph E | 19% |
| Thursday | 55°F | Slight Chance Rain Showers then Partly Sunny | 1 mph S | 19% |
| Thursday Night | 31°F | Mostly Clear | 1 mph ENE | 2% |
| Friday | 55°F | Mostly Sunny | 1 mph E | 2% |
| Friday Night | 34°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 60°F | Mostly Sunny | 1 mph W | 1% |
| Saturday Night | 37°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 61°F | Partly Sunny | 2 mph W | 1% |
| Sunday Night | 37°F | Mostly Cloudy | 0 mph | 2% |
| Monday | 60°F | Partly Sunny | 1 mph W | 7% |
| Monday Night | 37°F | Mostly Cloudy | 0 mph | 8% |
Forecast source: National Weather Service (api.weather.gov) for Midvale (44.462, -116.741). Updated through the day.
Growing snapshot for Midvale
Last spring frost
May 15
First fall frost
Sep 27
Growing season
134 days
Hardiness zone
6a
More local growing data for Midvale: nearby ZIP 83645 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cambridge, Id (17 mi from Midvale). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.