The official National Weather Service forecast for Ponca — 42.5625°N, 96.7056°W, 8.3 miles from I-29.
| Dixon County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 34 | 47 | 60 | 71 | 82 | 85 | 82 | 77 | 63 | 48 | 33 | 59 |
| Avg low °F | 11 | 14 | 25 | 36 | 48 | 59 | 63 | 61 | 52 | 39 | 26 | 15 | 37 |
| Precip in | 0.6 | 0.7 | 1.5 | 2.9 | 4.0 | 4.4 | 3.2 | 3.5 | 2.6 | 2.3 | 1.2 | 1.0 | 27.9 |
1996–2025 normals for Dixon County — the climate division Ponca sits in. All-time county record high 106.4°F (1988-06-22); record low -29.1°F (2021-02-16). Source: NOAA / National Weather Service.