The official National Weather Service forecast for Burlington — 40.8075°N, 91.1129°W, population 28,447, 55.3 miles from I-74.
| Des Moines County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 32 | 37 | 50 | 63 | 73 | 82 | 85 | 84 | 78 | 65 | 50 | 37 | 61 |
| Avg low °F | 16 | 19 | 30 | 40 | 52 | 62 | 65 | 63 | 55 | 44 | 32 | 21 | 42 |
| Precip in | 1.6 | 1.7 | 2.6 | 3.8 | 5.0 | 5.0 | 4.0 | 3.6 | 3.4 | 3.1 | 1.9 | 1.8 | 37.5 |
1996–2025 normals for Des Moines County — the climate division Burlington sits in. All-time county record high 103.6°F (2012-07-24); record low -23.3°F (2019-01-31). Source: NOAA / National Weather Service.