Cascade, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cascade, a city in Valley County, Idaho.
This Afternoon
50°F
Mostly Cloudy
Mostly cloudy, with a high near 50. Wind around 0 mph.
7-day forecast for Cascade
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Mostly Cloudy | 0 mph | 2% |
| Tonight | 34°F | Cloudy | 2 mph NNW | 8% |
| Wednesday | 51°F | Sunny | 1 mph NNW | 4% |
| Wednesday Night | 34°F | Patchy Smoke | 0 mph | 20% |
| Thursday | 44°F | Chance Rain And Snow Showers | 0 mph | 29% |
| Thursday Night | 31°F | Partly Cloudy | 0 mph | 2% |
| Friday | 48°F | Patchy Fog then Mostly Sunny | 1 mph S | 3% |
| Friday Night | 34°F | Partly Cloudy | 2 mph ESE | 3% |
| Saturday | 54°F | Mostly Sunny | 2 mph SSE | 1% |
| Saturday Night | 38°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 53°F | Mostly Sunny | 0 to 3 mph S | 2% |
| Sunday Night | 37°F | Mostly Cloudy | 1 mph E | 2% |
| Monday | 53°F | Partly Sunny | 1 mph SW | 6% |
| Monday Night | 37°F | Mostly Cloudy | 2 mph SSE | 12% |
Forecast source: National Weather Service (api.weather.gov) for Cascade (44.509, -116.044). Updated through the day.
Growing snapshot for Cascade
Last spring frost
May 30
First fall frost
Sep 19
Growing season
110 days
Hardiness zone
5a
More local growing data for Cascade: nearby ZIP 83615 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cascade 1 Nw, Id (12.6 mi from Cascade). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.