The official National Weather Service forecast for Easton — 39.7222°N, 94.6416°W, 8 miles from I-29. Forecasts here are written by NWS EAX, this county’s forecast office.
| Buchanan County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 42 | 55 | 66 | 75 | 84 | 88 | 87 | 80 | 68 | 54 | 42 | 65 |
| Avg low °F | 19 | 22 | 33 | 43 | 53 | 63 | 67 | 65 | 57 | 44 | 33 | 23 | 44 |
| Precip in | 1.1 | 1.3 | 2.1 | 3.5 | 5.0 | 5.1 | 4.4 | 4.2 | 3.3 | 3.3 | 1.9 | 1.5 | 36.7 |
1996–2025 normals for Buchanan County — the climate division Easton sits in. All-time county record high 107.8°F (1954-07-13); record low -22.2°F (1989-12-23). Source: NOAA / National Weather Service.