Irwin, ID Weather & Growing Conditions
Overnight
41°F
Patchy Smoke
Patchy smoke. Mostly clear. Low around 41, with temperatures rising to around 43 overnight. East southeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 41°F | Patchy Smoke | 10 mph ESE | 0% |
| Tuesday | 62°F | Patchy Smoke | 7 to 13 mph SSW | 0% |
| Tuesday Night | 45°F | Patchy Smoke | 6 to 13 mph SW | 0% |
| Wednesday | 64°F | Areas Of Smoke | 8 to 12 mph WSW | 0% |
| Wednesday Night | 47°F | Mostly Clear | 7 to 12 mph S | 0% |
| Thursday | 69°F | Sunny | 12 mph SSW | 0% |
| Thursday Night | 53°F | Mostly Clear | 7 to 14 mph SE | 0% |
| Friday | 72°F | Sunny | 9 to 14 mph SSW | 0% |
| Friday Night | 56°F | Mostly Clear | 12 to 15 mph SSW | 0% |
| Saturday | 72°F | Sunny | 8 to 14 mph SSW | 0% |
| Saturday Night | 57°F | Mostly Clear | 8 to 13 mph SSW | 0% |
| Sunday | 72°F | Sunny | 9 to 13 mph SW | 2% |
| Sunday Night | 56°F | Partly Cloudy | 12 to 15 mph SW | 1% |
| Monday | 71°F | Sunny | 9 to 13 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Irwin, ID
Growing season
69 days
Hardiness zone
6a
Explore more for Irwin, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Swan Valley, Id (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.