The official National Weather Service forecast for Brookings — 44.3114°N, 96.7984°W, population 23,674, 8.2 miles from I-29.
| Brookings County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 23 | 27 | 40 | 55 | 68 | 78 | 82 | 80 | 73 | 58 | 42 | 28 | 54 |
| Avg low °F | 5 | 8 | 20 | 32 | 45 | 56 | 60 | 57 | 49 | 36 | 22 | 11 | 33 |
| Precip in | 0.6 | 0.7 | 1.3 | 2.5 | 3.6 | 3.8 | 3.3 | 3.3 | 2.7 | 2.2 | 1.0 | 1.0 | 26.0 |
1996–2025 normals for Brookings County — the climate division Brookings sits in. All-time county record high 102.6°F (1988-08-01); record low -34.9°F (1994-02-09). Source: NOAA / National Weather Service.