Cascade, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cascade, a city in Valley County, Idaho.
Tonight
34°F
Mostly Cloudy
Mostly cloudy. Low around 34, with temperatures rising to around 38 overnight. West northwest wind around 1 mph.
7-day forecast for Cascade
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 34°F | Mostly Cloudy | 1 mph WNW | 2% |
| Wednesday | 50°F | Patchy Fog then Mostly Sunny | 2 mph WNW | 1% |
| Wednesday Night | 34°F | Partly Cloudy then Slight Chance Rain And Snow Showers | 2 mph SW | 17% |
| Thursday | 43°F | Slight Chance Rain And Snow Showers then Partly Sunny | 2 mph WNW | 17% |
| Thursday Night | 29°F | Patchy Fog | 2 mph W | 1% |
| Friday | 47°F | Areas Of Fog then Mostly Sunny | 1 mph SSE | 1% |
| Friday Night | 33°F | Partly Cloudy | 1 mph ESE | 0% |
| Saturday | 52°F | Mostly Sunny | 2 mph NNE | 0% |
| Saturday Night | 37°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 54°F | Mostly Sunny | 2 mph SSW | 1% |
| Sunday Night | 37°F | Mostly Cloudy | 2 mph NE | 1% |
| Monday | 54°F | Partly Sunny | 0 mph | 2% |
| Monday Night | 37°F | Mostly Cloudy | 2 mph ESE | 3% |
| Tuesday | 52°F | Mostly Sunny | 2 mph SSW | 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 4, 2026.