Idaho Springs, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Idaho Springs, a city in Gilpin County, Colorado.
This Afternoon
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then showers and thunderstorms likely. Mostly cloudy. High near 72, with temperatures falling to around 59 in the afternoon. South southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Idaho Springs
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Chance Showers And Thunderstorms | 5 mph SSE | 67% |
| Tonight | 44°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph W | 34% |
| Saturday | 68°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph SSW | 70% |
| Saturday Night | 41°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph WSW | 31% |
| Sunday | 66°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 to 9 mph NW | 16% |
| Sunday Night | 39°F | Partly Cloudy | 0 to 5 mph WNW | 12% |
| Monday | 69°F | Sunny | 0 to 8 mph S | 8% |
| Monday Night | 42°F | Mostly Clear | 2 to 7 mph NW | 6% |
| Tuesday | 71°F | Partly Sunny then Showers And Thunderstorms Likely | 6 mph SE | 55% |
| Tuesday Night | 44°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph SSW | 36% |
| Wednesday | 70°F | Partly Sunny then Chance Showers And Thunderstorms | 7 mph SE | 47% |
| Wednesday Night | 44°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph WNW | 22% |
| Thursday | 69°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph NNW | 35% |
| Thursday Night | 45°F | Chance Rain Showers then Mostly Cloudy | 2 to 6 mph SSW | 34% |
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 Sep 18, 2026.