Idaho Springs, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Idaho Springs, a city in Gilpin County, Colorado.
Today
50°F
Sunny
Sunny. High near 50, with temperatures falling to around 39 in the afternoon. Northwest wind 3 to 12 mph.
7-day forecast for Idaho Springs
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Sunny | 3 to 12 mph NW | 0% |
| Tonight | 28°F | Partly Cloudy | 0 to 6 mph W | 0% |
| Wednesday | 50°F | Chance Rain And Snow Showers | 0 to 12 mph NE | 45% |
| Wednesday Night | 29°F | Chance Rain And Snow Showers then Mostly Cloudy | 1 mph NW | 45% |
| Thursday | 54°F | Sunny | 0 to 6 mph N | 2% |
| Thursday Night | 30°F | Partly Cloudy | 3 mph W | 1% |
| Friday | 51°F | Mostly Sunny then Slight Chance Snow Showers | 2 to 7 mph N | 17% |
| Friday Night | 29°F | Slight Chance Snow Showers then Partly Cloudy | 5 to 9 mph WNW | 17% |
| Saturday | 52°F | Sunny | 5 to 14 mph WNW | 5% |
| Saturday Night | 30°F | Mostly Clear | 6 to 10 mph W | 3% |
| Sunday | 60°F | Sunny | 9 to 14 mph W | 0% |
| Sunday Night | 35°F | Mostly Clear | 9 to 13 mph W | 0% |
| Monday | 63°F | Sunny | 3 to 12 mph WNW | 0% |
| Monday Night | 36°F | Partly Cloudy | 3 to 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Idaho Springs (39.749, -105.504). Updated through the day.
Growing snapshot for Idaho Springs
Last spring frost
Jun 5
First fall frost
Sep 16
Growing season
103 days
Hardiness zone
5b
More local growing data for Idaho Springs: nearby ZIP 80427 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Coal Creek Canyon, Co (10.2 mi from Idaho Springs). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.