Preston, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preston, a city in Franklin County, Idaho.
This Afternoon
72°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 72, with temperatures falling to around 67 in the afternoon. South southeast wind around 9 mph. Chance of precipitation is 80%.
7-day forecast for Preston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Showers And Thunderstorms | 9 mph SSE | 83% |
| Tonight | 43°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 to 7 mph N | 75% |
| Saturday | 64°F | Slight Chance Showers And Thunderstorms | 1 to 6 mph WNW | 51% |
| Saturday Night | 39°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph NNE | 19% |
| Sunday | 71°F | Sunny | 3 mph NNE | 0% |
| Sunday Night | 41°F | Mostly Clear | 3 mph NE | 0% |
| Monday | 75°F | Sunny | 5 mph NW | 0% |
| Monday Night | 46°F | Partly Cloudy | 5 mph E | 1% |
| Tuesday | 76°F | Mostly Sunny | 5 mph NNW | 5% |
| Tuesday Night | 46°F | Partly Cloudy | 3 mph ESE | 14% |
| Wednesday | 77°F | Sunny | 5 mph SE | 7% |
| Wednesday Night | 45°F | Mostly Clear | 3 mph ENE | 4% |
| Thursday | 79°F | Sunny | 5 mph S | 2% |
| Thursday Night | 47°F | Partly Cloudy | 5 mph SE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Preston (42.099, -111.881). Updated through the day.
Growing snapshot for Preston
Last spring frost
May 16
First fall frost
Sep 28
Growing season
133 days
Hardiness zone
6a
More local growing data for Preston: nearby ZIP 83232 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Preston, Id (5.4 mi from Preston). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.