Fairfield, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfield, a city in Camas County, Idaho.
This Afternoon
66°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly sunny, with a high near 66. Northwest wind around 12 mph. Chance of precipitation is 20%.
7-day forecast for Fairfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Slight Chance Showers And Thunderstorms | 12 mph NW | 22% |
| Tonight | 37°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 to 12 mph W | 31% |
| Saturday | 65°F | Areas Of Fog then Slight Chance Showers And Thunderstorms | 1 to 5 mph SW | 29% |
| Saturday Night | 37°F | Partly Cloudy then Areas Of Fog | 3 mph N | 11% |
| Sunday | 71°F | Areas Of Fog then Sunny | 5 mph E | 0% |
| Sunday Night | 40°F | Mostly Clear | 6 mph ENE | 0% |
| Monday | 75°F | Sunny | 5 to 8 mph ENE | 1% |
| Monday Night | 43°F | Partly Cloudy | 6 mph N | 0% |
| Tuesday | 76°F | Mostly Sunny | 6 mph E | 2% |
| Tuesday Night | 42°F | Mostly Clear | 2 to 7 mph NNW | 1% |
| Wednesday | 77°F | Sunny | 3 to 7 mph E | 0% |
| Wednesday Night | 43°F | Mostly Clear | 7 mph NE | 2% |
| Thursday | 79°F | Sunny | 7 to 13 mph E | 1% |
| Thursday Night | 46°F | Partly Cloudy | 9 to 13 mph ENE | 2% |
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 Sep 19, 2026.