Downey, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Downey, a city in Bannock County, Idaho.
This Afternoon
51°F
Mostly Sunny
Mostly sunny. High near 51, with temperatures falling to around 46 in the afternoon. Southeast wind 1 to 5 mph.
7-day forecast for Downey
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 51°F | Mostly Sunny | 1 to 5 mph SE | 0% |
| Tonight | 25°F | Areas Of Fog | 1 mph N | 5% |
| Wednesday | 50°F | Areas Of Fog then Mostly Cloudy | 1 to 8 mph NW | 6% |
| Wednesday Night | 21°F | Areas Of Fog | 0 to 3 mph NNW | 0% |
| Thursday | 48°F | Areas Of Fog then Partly Sunny | 0 to 3 mph SW | 13% |
| Thursday Night | 22°F | Mostly Cloudy then Areas Of Fog | 2 mph W | 13% |
| Friday | 49°F | Mostly Sunny | 0 to 3 mph W | 1% |
| Friday Night | 22°F | Partly Cloudy | 2 mph S | 1% |
| Saturday | 53°F | Sunny | 2 mph S | 0% |
| Saturday Night | 24°F | Mostly Clear | 2 to 6 mph SSE | 0% |
| Sunday | 57°F | Sunny | 6 to 10 mph SSE | 0% |
| Sunday Night | 27°F | Partly Cloudy | 2 to 6 mph SSE | 1% |
| Monday | 58°F | Mostly Sunny | 2 to 6 mph SSE | 1% |
| Monday Night | 29°F | Mostly Cloudy | 0 to 5 mph SSE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Downey (42.429, -112.123). Updated through the day.
Growing snapshot for Downey
Last spring frost
May 31
First fall frost
Sep 18
Growing season
110 days
Hardiness zone
6b
More local growing data for Downey: nearby ZIP 83234 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Downey, Id (1.2 mi from Downey). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.