New Plymouth, ID Weather & Growing Conditions
Overnight
52°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms before 4am. Mostly cloudy, with a low around 52. West northwest wind around 3 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Isolated Showers And Thunderstorms | 3 mph WNW | 18% |
| Saturday | 79°F | Mostly Sunny | 5 mph NNW | 12% |
| Saturday Night | 49°F | Mostly Clear | 1 to 5 mph WSW | 3% |
| Sunday | 81°F | Sunny | 3 mph SSE | 0% |
| Sunday Night | 49°F | Mostly Clear | 0 to 3 mph S | 0% |
| Monday | 83°F | Sunny | 3 mph ENE | 0% |
| Monday Night | 52°F | Partly Cloudy | 3 mph WNW | 0% |
| Tuesday | 84°F | Sunny | 2 mph S | 0% |
| Tuesday Night | 51°F | Mostly Clear | 1 mph NE | 0% |
| Wednesday | 85°F | Sunny | 2 mph SE | 0% |
| Wednesday Night | 51°F | Mostly Clear | 2 mph NNE | 0% |
| Thursday | 86°F | Sunny | 2 mph SE | 0% |
| Thursday Night | 52°F | Partly Cloudy | 2 mph NE | 1% |
| Friday | 82°F | Mostly Sunny | 3 mph SE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for New Plymouth, ID
Last spring frost
Apr 22
First fall frost
Oct 9
Growing season
168 days
Hardiness zone
7a
Explore more for New Plymouth, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Ontario Ksrv, Or (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.