Black Hawk, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Black Hawk, a city in Gilpin County, Colorado.
Today
47°F
Slight Chance Snow Showers
A slight chance of snow showers between 11am and 2pm, then a chance of rain and snow showers. Partly sunny. High near 47, with temperatures falling to around 37 in the afternoon. East wind 3 to 9 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
7-day forecast for Black Hawk
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 47°F | Slight Chance Snow Showers | 3 to 9 mph E | 48% |
| Tonight | 29°F | Chance Snow Showers then Mostly Cloudy | 2 mph NNW | 48% |
| Thursday | 49°F | Sunny | 0 to 7 mph N | 0% |
| Thursday Night | 33°F | Partly Cloudy | 2 mph W | 2% |
| Friday | 49°F | Chance Snow Showers | 0 to 5 mph NW | 26% |
| Friday Night | 31°F | Chance Snow Showers then Mostly Clear | 0 to 3 mph WNW | 26% |
| Saturday | 52°F | Sunny | 0 to 8 mph NNW | 3% |
| Saturday Night | 32°F | Mostly Clear | 3 mph W | 0% |
| Sunday | 60°F | Sunny | 3 to 9 mph WNW | 0% |
| Sunday Night | 37°F | Mostly Clear | 6 to 12 mph W | 0% |
| Monday | 60°F | Sunny | 1 to 7 mph WNW | 0% |
| Monday Night | 37°F | Partly Cloudy | 2 mph W | 0% |
| Tuesday | 57°F | Mostly Sunny | 3 to 7 mph W | 1% |
| Tuesday Night | 36°F | Partly Cloudy | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Black Hawk (39.802, -105.493). Updated through the day.
Growing snapshot for Black Hawk
Last spring frost
Jun 5
First fall frost
Sep 16
Growing season
103 days
Hardiness zone
5b
More local growing data for Black Hawk: 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 Black Hawk). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.