Twin Falls, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Twin Falls, a city in Twin Falls County, Idaho.
Overnight
38°F
Cloudy
Cloudy, with a low around 38. South southwest wind around 6 mph.
7-day forecast for Twin Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 38°F | Cloudy | 6 mph SSW | 3% |
| Wednesday | 53°F | Mostly Sunny | 5 to 9 mph W | 3% |
| Wednesday Night | 34°F | Partly Cloudy | 6 mph SSE | 3% |
| Thursday | 53°F | Partly Sunny | 2 to 8 mph WSW | 0% |
| Thursday Night | 31°F | Mostly Clear | 5 to 9 mph SW | 0% |
| Friday | 56°F | Sunny | 2 to 6 mph SW | 0% |
| Friday Night | 31°F | Mostly Clear | 2 to 6 mph SSE | 0% |
| Saturday | 60°F | Sunny | 3 to 9 mph E | 0% |
| Saturday Night | 36°F | Partly Cloudy | 6 to 9 mph E | 0% |
| Sunday | 63°F | Mostly Sunny | 2 to 8 mph ENE | 0% |
| Sunday Night | 38°F | Partly Cloudy | 2 to 6 mph SSE | 0% |
| Monday | 62°F | Mostly Sunny | 6 mph ESE | 0% |
| Monday Night | 39°F | Mostly Cloudy | 5 mph SE | 0% |
| Tuesday | 62°F | Mostly Sunny | 3 mph WSW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Twin Falls (42.565, -114.461). Updated through the day.
Growing snapshot for Twin Falls
Last spring frost
May 9
First fall frost
Oct 4
Growing season
147 days
Hardiness zone
6b
More local growing data for Twin Falls: nearby ZIP 83341 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Twin Falls Sun Vly Rgnl Ap, Id (6.6 mi from Twin Falls). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.