St. Anthony, ID Weather & Growing Conditions
Overnight
28°F
Mostly Cloudy
Mostly cloudy. Low around 28, with temperatures rising to around 32 overnight. East northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 28°F | Mostly Cloudy | 6 mph ENE | 0% |
| Wednesday | 50°F | Partly Sunny | 2 to 7 mph SSE | 1% |
| Wednesday Night | 26°F | Areas Of Fog | 5 mph E | 0% |
| Thursday | 47°F | Areas Of Fog then Mostly Cloudy | 6 mph SSW | 10% |
| Thursday Night | 30°F | Areas Of Fog | 3 mph SSW | 10% |
| Friday | 44°F | Mostly Sunny | 2 to 7 mph SW | 0% |
| Friday Night | 26°F | Partly Cloudy | 5 mph E | 0% |
| Saturday | 49°F | Sunny | 1 to 5 mph NNW | 0% |
| Saturday Night | 27°F | Mostly Clear | 1 to 5 mph ENE | 0% |
| Sunday | 54°F | Mostly Sunny | 1 to 5 mph WSW | 0% |
| Sunday Night | 31°F | Partly Cloudy | 1 to 5 mph E | 0% |
| Monday | 55°F | Mostly Sunny | 1 to 5 mph ENE | 0% |
| Monday Night | 32°F | Mostly Cloudy | 3 mph ENE | 1% |
| Tuesday | 54°F | Mostly Sunny | 3 mph SSW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Anthony, ID
Last spring frost
May 21
First fall frost
Sep 21
Growing season
121 days
Hardiness zone
5a
Explore more for St. Anthony, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Ashton 1N, Id (6.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.