The official National Weather Service forecast for Idaho Springs — 39.7425°N, 105.5136°W, 0.4 miles from I-70. Forecasts here are written by NWS BOU, this county’s forecast office.
| Clear Creek County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 31 | 33 | 40 | 46 | 55 | 66 | 71 | 68 | 62 | 50 | 40 | 31 | 49 |
| Avg low °F | 12 | 12 | 17 | 22 | 31 | 39 | 45 | 43 | 37 | 28 | 19 | 13 | 26 |
| Precip in | 1.8 | 2.0 | 2.7 | 3.4 | 2.9 | 1.6 | 2.6 | 2.5 | 1.8 | 1.8 | 1.6 | 1.8 | 26.5 |
1996–2025 normals for Clear Creek County — the climate division Idaho Springs sits in. All-time county record high 82.7°F (1954-07-12); record low -36.8°F (1951-02-01). Source: NOAA / National Weather Service.