The official National Weather Service forecast for Algona — 43.07°N, 94.233°W, population 5,443, 46 miles from I-35.
| Kossuth 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 | 30 | 57 |
| Avg low °F | 8 | 12 | 24 | 36 | 47 | 59 | 62 | 59 | 51 | 39 | 26 | 14 | 36 |
| Precip in | 0.9 | 0.9 | 1.8 | 3.4 | 4.6 | 4.8 | 3.9 | 4.0 | 3.0 | 2.3 | 1.3 | 1.2 | 32.1 |
1996–2025 normals for Kossuth County — the climate division Algona sits in. All-time county record high 102.9°F (1985-06-09); record low -29.9°F (1970-01-21). Source: NOAA / National Weather Service.