Preston, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preston, a city in Franklin County, Idaho.
Overnight
47°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 47. North northeast wind around 5 mph.
7-day forecast for Preston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Smoke | 5 mph NNE | 0% |
| Tuesday | 88°F | Patchy Smoke | 3 to 8 mph NW | 0% |
| Tuesday Night | 49°F | Areas Of Smoke | 2 to 9 mph NNE | 0% |
| Wednesday | 90°F | Areas Of Smoke | 2 to 7 mph WSW | 0% |
| Wednesday Night | 53°F | Mostly Clear | 2 to 7 mph NNE | 0% |
| Thursday | 95°F | Sunny | 2 to 6 mph SSE | 0% |
| Thursday Night | 59°F | Clear | 2 to 7 mph E | 0% |
| Friday | 98°F | Sunny | 2 to 8 mph NW | 0% |
| Friday Night | 62°F | Mostly Clear | 2 to 9 mph NNE | 0% |
| Saturday | 97°F | Sunny | 2 to 8 mph NW | 0% |
| Saturday Night | 63°F | Mostly Clear | 3 to 10 mph N | 0% |
| Sunday | 96°F | Mostly Sunny | 3 to 10 mph WNW | 4% |
| Sunday Night | 62°F | Partly Cloudy | 3 to 10 mph WNW | 2% |
| Monday | 95°F | Mostly Sunny | 3 to 12 mph SW | 3% |
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 Aug 4, 2026.