Glenns Ferry, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glenns Ferry, a city in Elmore County, Idaho.
This Afternoon
73°F
Patchy Smoke
Patchy smoke and a chance of showers and thunderstorms before 3pm, then patchy smoke and a slight chance of showers and thunderstorms between 3pm and 4pm. Partly sunny, with a high near 73. West northwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
7-day forecast for Glenns Ferry
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Patchy Smoke | 15 mph WNW | 51% |
| Tonight | 49°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 13 mph W | 34% |
| Saturday | 75°F | Partly Sunny | 3 to 8 mph W | 14% |
| Saturday Night | 49°F | Mostly Clear | 3 to 7 mph ENE | 0% |
| Sunday | 81°F | Sunny | 5 to 8 mph E | 0% |
| Sunday Night | 51°F | Mostly Clear | 6 mph ENE | 0% |
| Monday | 85°F | Sunny | 5 to 10 mph E | 0% |
| Monday Night | 53°F | Partly Cloudy | 2 to 6 mph N | 0% |
| Tuesday | 85°F | Mostly Sunny | 5 mph E | 0% |
| Tuesday Night | 52°F | Mostly Clear | 5 mph NNE | 0% |
| Wednesday | 86°F | Sunny | 5 to 8 mph E | 0% |
| Wednesday Night | 54°F | Mostly Clear | 6 to 12 mph ENE | 2% |
| Thursday | 89°F | Sunny | 12 to 18 mph E | 1% |
| Thursday Night | 57°F | Partly Cloudy | 10 to 21 mph E | 0% |
Forecast source: National Weather Service (api.weather.gov) for Glenns Ferry (42.950, -115.308). Updated through the day.
Growing snapshot for Glenns Ferry
Last spring frost
May 1
First fall frost
Oct 3
Growing season
154 days
Hardiness zone
7a
More local growing data for Glenns Ferry: nearby ZIP 83623 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Glenns Ferry, Id (8 mi from Glenns Ferry). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.