Letha, ID Weather & Growing Conditions
Tonight
35°F
Mostly Cloudy
Mostly cloudy, with a low around 35. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 35°F | Mostly Cloudy | 0 mph | 13% |
| Wednesday | 59°F | Sunny | 2 mph NW | 2% |
| Wednesday Night | 35°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph ENE | 15% |
| Thursday | 56°F | Slight Chance Rain Showers then Partly Sunny | 1 mph NNW | 15% |
| Thursday Night | 31°F | Mostly Clear | 1 mph NNE | 1% |
| Friday | 57°F | Partly Sunny | 1 mph NE | 1% |
| Friday Night | 33°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 62°F | Mostly Sunny | 2 mph ESE | 1% |
| Saturday Night | 37°F | Partly Cloudy | 1 to 6 mph ESE | 0% |
| Sunday | 63°F | Mostly Sunny | 1 to 6 mph S | 0% |
| Sunday Night | 36°F | Mostly Cloudy | 1 mph NNW | 1% |
| Monday | 62°F | Partly Sunny | 1 mph WNW | 4% |
| Monday Night | 37°F | Mostly Cloudy | 0 mph | 7% |
| Tuesday | 63°F | Mostly Sunny | 1 mph NNW | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Letha, ID
Last spring frost
Apr 30
First fall frost
Oct 17
Growing season
168 days
Hardiness zone
7a
Explore more for Letha, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Emmett 2 E, Id (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.