Letha, ID Weather & Growing Conditions
Tonight
52°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 3am. Mostly cloudy, with a low around 52. North northwest wind around 2 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Slight Chance Showers And Thunderstorms | 2 mph NNW | 21% |
| Saturday | 80°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph NW | 4% |
| Saturday Night | 51°F | Mostly Clear | 1 mph E | 0% |
| Sunday | 83°F | Sunny | 2 mph SSE | 0% |
| Sunday Night | 52°F | Mostly Clear | 1 mph NE | 0% |
| Monday | 84°F | Sunny | 1 mph ESE | 0% |
| Monday Night | 53°F | Partly Cloudy | 1 mph NNW | 0% |
| Tuesday | 85°F | Sunny | 1 mph W | 0% |
| Tuesday Night | 52°F | Mostly Clear | 1 mph N | 2% |
| Wednesday | 85°F | Sunny | 2 mph SSE | 1% |
| Wednesday Night | 53°F | Mostly Clear | 1 mph NE | 1% |
| Thursday | 88°F | Sunny | 3 mph SE | 0% |
| Thursday Night | 55°F | Partly Cloudy | 3 mph ESE | 0% |
| Friday | 85°F | Mostly Sunny | 5 mph SSW | 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 Sep 19, 2026.