Harman US

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

WhenTempForecastWindPrecip
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.