The official National Weather Service forecast for Bonner Springs — 39.0597°N, 94.8836°W, 2.5 miles from I-70.
| Wyandotte County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 45 | 56 | 67 | 76 | 85 | 89 | 87 | 81 | 68 | 55 | 44 | 66 |
| Avg low °F | 20 | 24 | 35 | 44 | 55 | 65 | 69 | 67 | 58 | 46 | 35 | 25 | 45 |
| Precip in | 1.2 | 1.4 | 2.5 | 3.7 | 5.3 | 5.3 | 4.2 | 4.3 | 3.4 | 3.5 | 2.0 | 1.4 | 38.2 |
1996–2025 normals for Wyandotte County — the climate division Bonner Springs sits in. All-time county record high 109.5°F (1954-07-14); record low -20.9°F (1989-12-23). Source: NOAA / National Weather Service.