Downey, ID Weather & Growing Conditions
Tonight
39°F
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and midnight. Partly cloudy. Low around 39, with temperatures rising to around 43 overnight. Northwest wind around 3 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph NW | 40% |
| Saturday | 63°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 7 mph W | 55% |
| Saturday Night | 37°F | Partly Cloudy | 2 mph S | 13% |
| Sunday | 70°F | Mostly Sunny | 0 to 5 mph NW | 1% |
| Sunday Night | 39°F | Mostly Clear | 3 mph NE | 0% |
| Monday | 75°F | Sunny | 3 mph S | 0% |
| Monday Night | 44°F | Partly Cloudy | 1 mph ENE | 0% |
| Tuesday | 76°F | Mostly Sunny | 5 mph ESE | 4% |
| Tuesday Night | 44°F | Partly Cloudy | 3 mph SE | 11% |
| Wednesday | 77°F | Sunny | 6 mph S | 5% |
| Wednesday Night | 43°F | Mostly Clear | 1 to 5 mph SE | 4% |
| Thursday | 79°F | Sunny | 2 to 6 mph SE | 3% |
| Thursday Night | 46°F | Partly Cloudy | 5 mph SE | 3% |
| Friday | 79°F | Mostly Sunny | 5 to 9 mph S | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Downey, ID
Last spring frost
May 31
First fall frost
Sep 18
Growing season
110 days
Hardiness zone
6b
Explore more for Downey, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Downey, Id (1.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.