Ammon, ID Weather & Growing Conditions
Overnight
43°F
Mostly Clear
Mostly clear. Low around 43, with temperatures rising to around 45 overnight. South southeast wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Mostly Clear | 8 mph SSE | 0% |
| Tuesday | 78°F | Patchy Smoke | 6 to 13 mph SW | 0% |
| Tuesday Night | 47°F | Areas Of Smoke | 7 to 12 mph SSW | 0% |
| Wednesday | 82°F | Areas Of Smoke | 7 to 12 mph SW | 0% |
| Wednesday Night | 50°F | Mostly Clear | 7 to 13 mph S | 0% |
| Thursday | 87°F | Sunny | 9 to 13 mph SSW | 0% |
| Thursday Night | 55°F | Clear | 9 to 14 mph S | 0% |
| Friday | 91°F | Sunny | 9 to 15 mph S | 0% |
| Friday Night | 58°F | Mostly Clear | 14 to 17 mph SSW | 0% |
| Saturday | 91°F | Sunny | 8 to 17 mph SSW | 0% |
| Saturday Night | 60°F | Mostly Clear | 12 to 17 mph SSW | 0% |
| Sunday | 90°F | Sunny | 10 to 20 mph SSW | 0% |
| Sunday Night | 59°F | Mostly Clear | 13 to 21 mph SSW | 1% |
| Monday | 88°F | Sunny | 10 to 17 mph SSW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ammon, ID
Last spring frost
Jun 9
First fall frost
Sep 11
Growing season
93 days
Hardiness zone
5b
Explore more for Ammon, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Idaho Falls 16 Se, Id (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.