Richfield, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Richfield, a city in Lincoln County, Idaho.
This Afternoon
50°F
Mostly Cloudy
Mostly cloudy. High near 50, with temperatures falling to around 47 in the afternoon. East northeast wind 13 to 16 mph, with gusts as high as 26 mph.
7-day forecast for Richfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Mostly Cloudy | 13 to 16 mph ENE | 0% |
| Tonight | 34°F | Mostly Cloudy then Patchy Fog | 3 to 12 mph NNE | 3% |
| Wednesday | 52°F | Areas Of Fog then Mostly Sunny | 5 to 9 mph WSW | 3% |
| Wednesday Night | 30°F | Areas Of Fog | 5 mph NNW | 0% |
| Thursday | 51°F | Areas Of Fog then Partly Sunny | 3 to 7 mph E | 1% |
| Thursday Night | 28°F | Areas Of Fog | 2 to 7 mph WNW | 0% |
| Friday | 50°F | Mostly Sunny | 3 mph N | 1% |
| Friday Night | 30°F | Partly Cloudy | 1 to 6 mph N | 1% |
| Saturday | 54°F | Sunny | 6 to 9 mph ENE | 0% |
| Saturday Night | 34°F | Mostly Clear | 6 to 13 mph ENE | 0% |
| Sunday | 58°F | Mostly Sunny | 3 to 12 mph ENE | 0% |
| Sunday Night | 35°F | Partly Cloudy | 3 to 8 mph NE | 0% |
| Monday | 58°F | Mostly Sunny | 3 to 9 mph ENE | 0% |
| Monday Night | 35°F | Partly Cloudy | 6 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Richfield (43.052, -114.156). Updated through the day.
Growing snapshot for Richfield
Last spring frost
May 24
First fall frost
Sep 26
Growing season
123 days
Hardiness zone
6a
More local growing data for Richfield: nearby ZIP 83349 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Richfield, Id (4.6 mi from Richfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.