Arimo, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arimo, a city in Bannock County, Idaho.
This Afternoon
70°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 70, with temperatures falling to around 66 in the afternoon. South wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
7-day forecast for Arimo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Showers And Thunderstorms | 9 mph S | 86% |
| Tonight | 38°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 7 mph NNW | 72% |
| Saturday | 63°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 6 mph SW | 55% |
| Saturday Night | 37°F | Partly Cloudy | 2 mph W | 12% |
| Sunday | 69°F | Mostly Sunny | 0 to 3 mph W | 0% |
| Sunday Night | 37°F | Mostly Clear | 3 mph ENE | 0% |
| Monday | 75°F | Sunny | 3 mph S | 0% |
| Monday Night | 42°F | Partly Cloudy | 2 mph ESE | 0% |
| Tuesday | 76°F | Mostly Sunny | 1 to 5 mph SE | 4% |
| Tuesday Night | 42°F | Mostly Cloudy | 3 mph SE | 9% |
| Wednesday | 77°F | Sunny | 2 to 6 mph S | 5% |
| Wednesday Night | 42°F | Mostly Clear | 1 to 5 mph SSE | 4% |
| Thursday | 80°F | Sunny | 5 mph SE | 3% |
| Thursday Night | 44°F | Partly Cloudy | 1 to 5 mph SSE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Arimo (42.560, -112.173). Updated through the day.
Growing snapshot for Arimo
Last spring frost
May 23
First fall frost
Sep 24
Growing season
121 days
Hardiness zone
5b
More local growing data for Arimo: nearby ZIP 83250 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mccammon, Id (3 mi from Arimo). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.