Richfield, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Richfield, a city in Lincoln County, Idaho.
Tonight
34°F
Mostly Cloudy then Patchy Fog
Patchy fog after 3am. Mostly cloudy. Low around 34, with temperatures rising to around 36 overnight. North northeast wind 3 to 12 mph, with gusts as high as 21 mph.
7-day forecast for Richfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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% |
| Tuesday | 58°F | Mostly Sunny | 5 mph W | 7% |
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.