Franklin, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Franklin, a city in Franklin County, Idaho.
Overnight
46°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 46. Northeast wind around 1 mph.
7-day forecast for Franklin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Patchy Smoke | 1 mph NE | 0% |
| Tuesday | 89°F | Patchy Smoke | 2 to 7 mph WNW | 0% |
| Tuesday Night | 49°F | Areas Of Smoke | 0 to 8 mph NE | 0% |
| Wednesday | 91°F | Areas Of Smoke | 0 to 5 mph W | 0% |
| Wednesday Night | 53°F | Mostly Clear | 1 to 6 mph ESE | 0% |
| Thursday | 97°F | Sunny | 0 to 5 mph N | 0% |
| Thursday Night | 59°F | Clear | 1 to 6 mph ESE | 0% |
| Friday | 100°F | Sunny | 0 to 6 mph W | 0% |
| Friday Night | 62°F | Mostly Clear | 1 to 8 mph NNE | 0% |
| Saturday | 99°F | Sunny | 0 to 6 mph WNW | 0% |
| Saturday Night | 63°F | Mostly Clear | 2 to 8 mph NE | 0% |
| Sunday | 98°F | Mostly Sunny | 1 to 9 mph WSW | 4% |
| Sunday Night | 62°F | Mostly Clear | 2 to 9 mph ESE | 2% |
| Monday | 96°F | Mostly Sunny | 1 to 9 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Franklin (42.010, -111.802). Updated through the day.
Growing snapshot for Franklin
Last spring frost
May 16
First fall frost
Sep 28
Growing season
133 days
Hardiness zone
6a
More local growing data for Franklin: nearby ZIP 83237 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Preston, Id (7 mi from Franklin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.