Island Park, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Island Park, a city in Fremont County, Idaho.
Today
75°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 75. West northwest wind 2 to 9 mph, with gusts as high as 20 mph.
7-day forecast for Island Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Areas Of Smoke | 2 to 9 mph WNW | 0% |
| Tonight | 43°F | Areas Of Smoke | 3 to 9 mph NNW | 0% |
| Wednesday | 78°F | Patchy Smoke | 3 to 9 mph SW | 0% |
| Wednesday Night | 47°F | Mostly Clear | 1 to 9 mph NW | 0% |
| Thursday | 85°F | Sunny | 2 to 10 mph SW | 0% |
| Thursday Night | 50°F | Mostly Clear | 1 to 10 mph NE | 0% |
| Friday | 88°F | Sunny | 2 to 10 mph SSE | 0% |
| Friday Night | 52°F | Mostly Clear | 3 to 13 mph NW | 0% |
| Saturday | 88°F | Sunny | 2 to 12 mph SSW | 0% |
| Saturday Night | 53°F | Partly Cloudy | 2 to 12 mph NW | 0% |
| Sunday | 87°F | Sunny | 2 to 14 mph SSW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 1 to 14 mph NW | 1% |
| Monday | 86°F | Sunny | 1 to 13 mph NNW | 1% |
| Monday Night | 52°F | Partly Cloudy | 2 to 14 mph NNW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Island Park (44.534, -111.338). Updated through the day.
Growing snapshot for Island Park
Growing season
49 days
Hardiness zone
4a
More local growing data for Island Park: nearby ZIP 83433 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Island Park, Id (5.8 mi from Island Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.