The official National Weather Service forecast for Charles City — 43.0664°N, 92.6724°W, population 7,255, 36 miles from I-35.
| Floyd County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 25 | 29 | 43 | 58 | 70 | 80 | 83 | 80 | 75 | 61 | 45 | 31 | 57 |
| Avg low °F | 9 | 12 | 25 | 36 | 47 | 58 | 62 | 59 | 51 | 39 | 27 | 15 | 37 |
| Precip in | 0.9 | 1.1 | 2.0 | 3.7 | 5.1 | 5.8 | 4.6 | 4.3 | 3.3 | 2.7 | 1.6 | 1.4 | 36.5 |
1996–2025 normals for Floyd County — the climate division Charles City sits in. All-time county record high 102.2°F (1988-08-18); record low -30.3°F (1996-02-03). Source: NOAA / National Weather Service.