Mountain Home, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mountain Home, a city in Elmore County, Idaho.
This Afternoon
73°F
Patchy Smoke
Patchy smoke and showers and thunderstorms likely before 3pm, then patchy smoke and a chance of showers and thunderstorms between 3pm and 5pm. Partly sunny, with a high near 73. West northwest wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
7-day forecast for Mountain Home
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Patchy Smoke | 12 mph WNW | 60% |
| Tonight | 51°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph NW | 29% |
| Saturday | 76°F | Mostly Sunny | 5 to 10 mph NW | 11% |
| Saturday Night | 51°F | Mostly Clear | 3 to 7 mph NNE | 0% |
| Sunday | 80°F | Sunny | 5 to 9 mph SE | 0% |
| Sunday Night | 53°F | Mostly Clear | 5 mph E | 0% |
| Monday | 84°F | Sunny | 6 mph ESE | 0% |
| Monday Night | 55°F | Partly Cloudy | 5 mph N | 0% |
| Tuesday | 84°F | Mostly Sunny | 5 mph ESE | 0% |
| Tuesday Night | 55°F | Mostly Clear | 5 mph NNE | 0% |
| Wednesday | 86°F | Sunny | 5 to 8 mph ESE | 0% |
| Wednesday Night | 57°F | Mostly Clear | 6 to 9 mph E | 2% |
| Thursday | 88°F | Sunny | 13 to 21 mph ESE | 0% |
| Thursday Night | 60°F | Partly Cloudy | 12 to 22 mph E | 0% |
Forecast source: National Weather Service (api.weather.gov) for Mountain Home (43.132, -115.697). Updated through the day.
Growing snapshot for Mountain Home
Last spring frost
May 2
First fall frost
Oct 8
Growing season
157 days
Hardiness zone
7a
More local growing data for Mountain Home: nearby ZIP 83648 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mtn Home, Id (9.4 mi from Mountain Home). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.