Richfield, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Richfield, a city in Lincoln County, Idaho.
Overnight
42°F
Chance Light Rain
A chance of rain. Mostly cloudy. Low around 42, with temperatures rising to around 44 overnight. Northeast wind around 2 mph. Chance of precipitation is 40%.
7-day forecast for Richfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 42°F | Chance Light Rain | 2 mph NE | 39% |
| Saturday | 66°F | Slight Chance Light Rain then Mostly Sunny | 5 mph WSW | 16% |
| Saturday Night | 40°F | Mostly Clear | 5 mph ENE | 4% |
| Sunday | 72°F | Mostly Sunny | 6 mph E | 0% |
| Sunday Night | 44°F | Mostly Clear | 2 to 8 mph E | 0% |
| Monday | 78°F | Sunny | 7 to 12 mph ENE | 0% |
| Monday Night | 47°F | Partly Cloudy | 3 to 8 mph ENE | 0% |
| Tuesday | 79°F | Mostly Sunny | 7 mph E | 1% |
| Tuesday Night | 46°F | Partly Cloudy | 6 mph N | 3% |
| Wednesday | 80°F | Sunny | 5 to 8 mph E | 1% |
| Wednesday Night | 47°F | Mostly Clear | 3 to 9 mph ESE | 1% |
| Thursday | 82°F | Sunny | 8 to 13 mph E | 2% |
| Thursday Night | 49°F | Partly Cloudy | 6 to 9 mph E | 4% |
| Friday | 82°F | Mostly Sunny | 10 mph E | 5% |
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 Sep 19, 2026.