Spencer, ID Weather & Growing Conditions
Today
81°F
Areas Of Smoke
Areas of smoke. Sunny. High near 81, with temperatures falling to around 79 in the afternoon. Southeast wind 3 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Areas Of Smoke | 3 to 12 mph SE | 0% |
| Tonight | 52°F | Areas Of Smoke | 7 to 12 mph N | 1% |
| Wednesday | 85°F | Areas Of Smoke | 3 to 9 mph S | 0% |
| Wednesday Night | 55°F | Mostly Clear | 5 to 9 mph NW | 0% |
| Thursday | 91°F | Sunny | 2 to 9 mph S | 0% |
| Thursday Night | 59°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Friday | 94°F | Sunny | 3 to 10 mph SE | 0% |
| Friday Night | 61°F | Mostly Clear | 9 to 15 mph WNW | 0% |
| Saturday | 94°F | Sunny | 3 to 13 mph SSW | 0% |
| Saturday Night | 62°F | Mostly Clear | 12 mph NW | 0% |
| Sunday | 93°F | Sunny | 5 to 14 mph SSE | 0% |
| Sunday Night | 60°F | Mostly Clear | 7 to 16 mph NW | 1% |
| Monday | 91°F | Sunny | 5 to 14 mph SE | 0% |
| Monday Night | 60°F | Partly Cloudy | 8 to 16 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Spencer, ID
Last spring frost
Jun 5
First fall frost
Sep 20
Growing season
106 days
Hardiness zone
5b
Explore more for Spencer, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Small 6N, Id (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.