The official National Weather Service forecast for Murdo — 43.8883°N, 100.7129°W, 1 miles from I-90.
| Jones County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 36 | 48 | 59 | 69 | 81 | 89 | 87 | 79 | 63 | 48 | 35 | 61 |
| Avg low °F | 11 | 13 | 23 | 33 | 44 | 55 | 62 | 59 | 50 | 36 | 24 | 14 | 35 |
| Precip in | 0.4 | 0.5 | 1.0 | 2.1 | 3.2 | 3.1 | 2.5 | 2.4 | 1.6 | 1.6 | 0.5 | 0.5 | 19.4 |
1996–2025 normals for Jones County — the climate division Murdo sits in. All-time county record high 112.5°F (2006-07-16); record low -30.6°F (1994-02-09). Source: NOAA / National Weather Service.