The official National Weather Service forecast for Black Hawk — 39.7969°N, 105.4939°W, 4.1 miles from I-70. Forecasts here are written by NWS BOU, this county’s forecast office.
| Gilpin County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 34 | 42 | 48 | 56 | 68 | 73 | 71 | 65 | 53 | 42 | 34 | 52 |
| Avg low °F | 14 | 14 | 19 | 24 | 32 | 41 | 47 | 45 | 39 | 29 | 21 | 15 | 28 |
| Precip in | 1.3 | 1.5 | 2.3 | 3.1 | 2.8 | 1.7 | 2.5 | 2.3 | 1.8 | 1.5 | 1.2 | 1.3 | 23.3 |
1996–2025 normals for Gilpin County — the climate division Black Hawk sits in. All-time county record high 86.0°F (1954-07-12); record low -35.3°F (1951-02-01). Source: NOAA / National Weather Service.