Mackay, ID Weather & Growing Conditions
Overnight
25°F
Mostly Cloudy
Mostly cloudy, with a low around 25. South wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 25°F | Mostly Cloudy | 3 mph S | 1% |
| Wednesday | 34°F | Mostly Sunny | 1 to 5 mph S | 1% |
| Wednesday Night | 23°F | Partly Cloudy | 3 to 9 mph SSW | 0% |
| Thursday | 31°F | Partly Sunny then Slight Chance Light Snow | 3 to 7 mph WSW | 19% |
| Thursday Night | 20°F | Slight Chance Light Snow then Partly Cloudy | 7 mph WSW | 19% |
| Friday | 34°F | Sunny | 2 to 6 mph WSW | 0% |
| Friday Night | 26°F | Partly Cloudy | 5 mph W | 0% |
| Saturday | 39°F | Sunny | 1 to 5 mph WNW | 0% |
| Saturday Night | 29°F | Partly Cloudy | 5 to 18 mph SSW | 0% |
| Sunday | 41°F | Mostly Sunny | 5 to 17 mph SW | 0% |
| Sunday Night | 28°F | Partly Cloudy | 7 to 13 mph WSW | 0% |
| Monday | 40°F | Mostly Sunny | 3 to 8 mph SW | 0% |
| Monday Night | 28°F | Partly Cloudy | 7 to 10 mph SW | 0% |
| Tuesday | 39°F | Mostly Sunny | 2 to 7 mph W | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mackay, ID
Last spring frost
Jun 14
First fall frost
Sep 8
Growing season
86 days
Hardiness zone
5a
Explore more for Mackay, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Chilly Barton Flat, Id (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.