Spencer, ID Weather & Growing Conditions
Overnight
45°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 3am, then rain likely. Mostly cloudy. Low around 45, with temperatures rising to around 48 overnight. East northeast wind around 2 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Showers And Thunderstorms Likely | 2 mph ENE | 63% |
| Saturday | 61°F | Light Rain Likely then Slight Chance Showers And Thunderstorms | 5 mph SSE | 60% |
| Saturday Night | 40°F | Slight Chance Light Rain then Mostly Cloudy | 5 mph N | 19% |
| Sunday | 66°F | Mostly Sunny | 3 mph S | 3% |
| Sunday Night | 41°F | Mostly Clear | 5 mph WNW | 0% |
| Monday | 71°F | Sunny | 6 mph ESE | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph NE | 0% |
| Tuesday | 73°F | Mostly Sunny | 6 mph E | 0% |
| Tuesday Night | 45°F | Partly Cloudy | 5 mph NNE | 7% |
| Wednesday | 73°F | Mostly Sunny | 2 to 7 mph ESE | 6% |
| Wednesday Night | 45°F | Mostly Clear | 6 mph ENE | 4% |
| Thursday | 75°F | Sunny | 3 to 7 mph ESE | 3% |
| Thursday Night | 47°F | Partly Cloudy | 6 mph NE | 0% |
| Friday | 75°F | Mostly Sunny | 3 to 8 mph ESE | 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 Sep 19, 2026.