Ashton, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ashton, a city in Fremont County, Idaho.
Today
80°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 80. East southeast wind 3 to 8 mph.
7-day forecast for Ashton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Patchy Smoke | 3 to 8 mph ESE | 0% |
| Tonight | 46°F | Patchy Smoke | 3 to 7 mph E | 1% |
| Wednesday | 83°F | Patchy Smoke | 3 to 8 mph SSW | 0% |
| Wednesday Night | 49°F | Mostly Clear | 7 mph ESE | 0% |
| Thursday | 90°F | Sunny | 3 to 9 mph SSE | 0% |
| Thursday Night | 54°F | Mostly Clear | 7 mph ESE | 0% |
| Friday | 94°F | Sunny | 3 to 8 mph SSE | 0% |
| Friday Night | 56°F | Mostly Clear | 6 to 12 mph ESE | 0% |
| Saturday | 93°F | Sunny | 5 to 12 mph SW | 0% |
| Saturday Night | 57°F | Mostly Clear | 5 to 9 mph SE | 0% |
| Sunday | 92°F | Mostly Sunny | 3 to 13 mph SSE | 1% |
| Sunday Night | 57°F | Mostly Clear | 5 to 16 mph S | 2% |
| Monday | 90°F | Sunny | 3 to 12 mph SSE | 1% |
| Monday Night | 57°F | Partly Cloudy | 6 to 14 mph SE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Ashton (44.073, -111.448). Updated through the day.
Growing snapshot for Ashton
Last spring frost
May 21
First fall frost
Sep 21
Growing season
121 days
Hardiness zone
5a
More local growing data for Ashton: nearby ZIP 83421 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ashton 1N, Id (6.6 mi from Ashton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.