Fairfield, ID Weather & Growing Conditions
Today
73°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 73. South wind 5 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Smoke | 5 to 12 mph S | 0% |
| Tonight | 48°F | Patchy Smoke | 9 to 13 mph NW | 0% |
| Wednesday | 77°F | Patchy Smoke | 7 to 12 mph W | 0% |
| Wednesday Night | 51°F | Patchy Smoke | 9 to 14 mph NW | 0% |
| Thursday | 83°F | Patchy Smoke | 8 to 13 mph W | 0% |
| Thursday Night | 55°F | Mostly Clear then Patchy Smoke | 9 to 13 mph N | 0% |
| Friday | 85°F | Sunny | 8 to 15 mph WNW | 0% |
| Friday Night | 59°F | Mostly Clear | 12 to 17 mph NW | 0% |
| Saturday | 84°F | Sunny | 8 to 17 mph WNW | 0% |
| Saturday Night | 59°F | Mostly Clear | 10 to 17 mph NNW | 0% |
| Sunday | 81°F | Sunny | 8 to 18 mph W | 0% |
| Sunday Night | 57°F | Mostly Clear | 9 to 18 mph NW | 0% |
| Monday | 80°F | Sunny | 7 to 16 mph W | 0% |
| Monday Night | 56°F | Partly Cloudy | 10 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 8
First fall frost
Sep 14
Growing season
97 days
Hardiness zone
6a
Explore more for Fairfield, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Fairfield Rs, Id (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.