Ammon, ID Weather & Growing Conditions
Today
58°F
Chance Light Rain then Showers And Thunderstorms Likely
A chance of rain before noon, then showers and thunderstorms likely between noon and 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 58. West southwest wind around 7 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 58°F | Chance Light Rain then Showers And Thunderstorms Likely | 7 mph WSW | 56% |
| Tonight | 36°F | Partly Cloudy | 6 mph S | 11% |
| Sunday | 63°F | Mostly Sunny | 7 mph WSW | 3% |
| Sunday Night | 37°F | Mostly Clear | 5 to 8 mph E | 0% |
| Monday | 70°F | Sunny | 1 to 12 mph SSW | 0% |
| Monday Night | 42°F | Mostly Clear | 6 to 9 mph E | 0% |
| Tuesday | 72°F | Mostly Sunny | 3 to 13 mph SSE | 1% |
| Tuesday Night | 44°F | Partly Cloudy then Slight Chance Light Rain | 6 to 12 mph SSE | 16% |
| Wednesday | 72°F | Mostly Sunny | 6 to 14 mph SSW | 10% |
| Wednesday Night | 43°F | Mostly Clear | 6 to 14 mph SSE | 4% |
| Thursday | 75°F | Sunny | 8 to 14 mph SSE | 2% |
| Thursday Night | 46°F | Partly Cloudy | 6 to 15 mph SSE | 2% |
| Friday | 75°F | Mostly Sunny | 12 to 18 mph SSE | 3% |
| Friday Night | 46°F | Partly Cloudy | 10 to 17 mph S | 8% |
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 Sep 19, 2026.