Fairfield, ID Weather & Growing Conditions
Today
82°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 82. Southwest wind 5 to 13 mph, with gusts as high as 23 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Areas Of Smoke | 5 to 13 mph SW | 0% |
| Tonight | 40°F | Areas Of Smoke | 5 to 14 mph W | 0% |
| Wednesday | 87°F | Areas Of Smoke | 5 to 10 mph W | 0% |
| Wednesday Night | 42°F | Patchy Smoke | 3 to 13 mph WNW | 0% |
| Thursday | 94°F | Patchy Smoke | 2 to 10 mph W | 0% |
| Thursday Night | 49°F | Patchy Smoke | 3 to 12 mph WNW | 0% |
| Friday | 95°F | Sunny | 2 to 16 mph NW | 0% |
| Friday Night | 56°F | Mostly Clear | 5 to 18 mph NNW | 0% |
| Saturday | 94°F | Sunny | 2 to 16 mph WNW | 0% |
| Saturday Night | 56°F | Mostly Clear | 5 to 17 mph NNW | 0% |
| Sunday | 92°F | Sunny | 2 to 18 mph W | 0% |
| Sunday Night | 53°F | Mostly Clear | 5 to 18 mph NW | 0% |
| Monday | 90°F | Sunny | 2 to 16 mph W | 0% |
| Monday Night | 52°F | Mostly Clear | 5 to 17 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fairfield, ID
Last spring frost
Jun 16
First fall frost
Sep 6
Growing season
80 days
Hardiness zone
5a
Explore more for Fairfield, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Hill City 1 W, Id (5.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.