The official National Weather Service forecast for Osborne — 39.4391°N, 98.6962°W, 42.3 miles from I-70.
| Osborne County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 41 | 45 | 57 | 67 | 76 | 88 | 92 | 90 | 83 | 70 | 56 | 44 | 67 |
| Avg low °F | 18 | 20 | 30 | 39 | 50 | 61 | 66 | 64 | 55 | 42 | 30 | 20 | 41 |
| Precip in | 0.6 | 0.7 | 1.4 | 2.1 | 4.0 | 3.3 | 3.5 | 3.4 | 2.3 | 1.8 | 1.1 | 0.8 | 25.0 |
1996–2025 normals for Osborne County — the climate division Osborne sits in. All-time county record high 113.4°F (2012-06-28); record low -27.3°F (1989-12-23). Source: NOAA / National Weather Service.