Letha, ID Weather & Growing Conditions
Today
90°F
Smoke
Smoke. Sunny, with a high near 90. West wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Smoke | 5 mph W | 0% |
| Tonight | 55°F | Smoke | 3 mph SW | 0% |
| Wednesday | 94°F | Smoke | 2 mph NNW | 0% |
| Wednesday Night | 58°F | Areas Of Smoke | 2 mph ESE | 0% |
| Thursday | 101°F | Areas Of Smoke | 1 mph NE | 0% |
| Thursday Night | 63°F | Areas Of Smoke | 3 mph S | 0% |
| Friday | 102°F | Sunny | 0 to 3 mph NW | 0% |
| Friday Night | 64°F | Mostly Clear | 2 to 6 mph NNW | 0% |
| Saturday | 100°F | Sunny | 1 to 6 mph NW | 0% |
| Saturday Night | 64°F | Mostly Clear | 6 mph NNW | 0% |
| Sunday | 96°F | Sunny | 6 mph NW | 0% |
| Sunday Night | 61°F | Mostly Clear | 6 mph NNW | 0% |
| Monday | 95°F | Sunny | 5 mph NW | 0% |
| Monday Night | 60°F | Mostly Clear | 5 mph NNW | 0% |
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 Aug 4, 2026.