New Plymouth, ID Weather & Growing Conditions
Today
89°F
Smoke
Smoke. Sunny, with a high near 89. West wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Smoke | 3 mph W | 0% |
| Tonight | 54°F | Smoke | 2 mph WSW | 0% |
| Wednesday | 92°F | Smoke | 2 mph S | 0% |
| Wednesday Night | 57°F | Areas Of Smoke | 2 mph SSW | 0% |
| Thursday | 99°F | Areas Of Smoke | 1 mph E | 0% |
| Thursday Night | 62°F | Areas Of Smoke | 0 to 5 mph S | 0% |
| Friday | 100°F | Sunny | 2 mph NW | 0% |
| Friday Night | 64°F | Mostly Clear | 3 to 7 mph NW | 0% |
| Saturday | 98°F | Sunny | 2 to 6 mph NW | 0% |
| Saturday Night | 63°F | Mostly Clear | 7 mph NW | 0% |
| Sunday | 95°F | Sunny | 6 mph NW | 0% |
| Sunday Night | 61°F | Mostly Clear | 7 mph NNW | 0% |
| Monday | 94°F | Sunny | 5 mph NW | 0% |
| Monday Night | 60°F | Mostly Clear | 5 mph NNW | 0% |
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 Aug 4, 2026.