Fairfield, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Camas County, Idaho.
Tonight
26°F
Mostly Cloudy
Mostly cloudy, with a low around 26. North northwest wind 1 to 5 mph.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 26°F | Mostly Cloudy | 1 to 5 mph NNW | 12% |
| Wednesday | 53°F | Mostly Sunny | 1 to 7 mph W | 4% |
| Wednesday Night | 24°F | Partly Cloudy | 0 to 3 mph NNW | 0% |
| Thursday | 49°F | Partly Sunny | 0 to 8 mph WNW | 1% |
| Thursday Night | 20°F | Mostly Clear | 2 to 8 mph NW | 0% |
| Friday | 50°F | Mostly Sunny | 1 to 5 mph WNW | 0% |
| Friday Night | 25°F | Partly Cloudy | 3 mph NNW | 0% |
| Saturday | 54°F | Sunny | 1 to 6 mph ENE | 0% |
| Saturday Night | 29°F | Partly Cloudy | 5 to 9 mph ENE | 0% |
| Sunday | 58°F | Mostly Sunny | 7 mph SE | 0% |
| Sunday Night | 29°F | Partly Cloudy | 5 mph N | 0% |
| Monday | 58°F | Mostly Sunny | 5 mph ENE | 1% |
| Monday Night | 29°F | Partly Cloudy | 3 mph NNE | 5% |
| Tuesday | 57°F | Mostly Sunny | 3 mph WNW | 10% |
Forecast source: National Weather Service (api.weather.gov) for Fairfield (43.348, -114.801). Updated through the day.
Growing snapshot for Fairfield
Last spring frost
Jun 16
First fall frost
Sep 6
Growing season
80 days
Hardiness zone
5a
More local growing data for Fairfield: nearby ZIP 83322 weather · frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Hill City 1 W, Id (5.5 mi from Fairfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.