The official National Weather Service forecast for Evanston — 41.2683°N, 110.9632°W, population 11,416, 1.1 miles from I-80.
| Uinta County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 31 | 33 | 42 | 51 | 61 | 72 | 80 | 78 | 69 | 56 | 42 | 32 | 54 |
| Avg low °F | 10 | 11 | 19 | 25 | 33 | 41 | 48 | 46 | 38 | 28 | 18 | 11 | 27 |
| Precip in | 0.8 | 0.8 | 1.0 | 1.2 | 1.5 | 1.0 | 0.8 | 1.1 | 1.2 | 1.2 | 0.9 | 0.9 | 12.4 |
1996–2025 normals for Uinta County — the climate division Evanston sits in. All-time county record high 93.3°F (2002-07-14); record low -30.3°F (1982-02-06). Source: NOAA / National Weather Service.