The official National Weather Service forecast for Big Rapids — 43.6981°N, 85.4837°W, population 10,136, 64.1 miles from I-75. Forecasts here are written by NWS GRR, this county’s forecast office.
| Mecosta County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 29 | 32 | 43 | 56 | 68 | 78 | 82 | 80 | 73 | 59 | 45 | 34 | 57 |
| Avg low °F | 15 | 14 | 22 | 33 | 43 | 53 | 57 | 55 | 48 | 38 | 29 | 21 | 36 |
| Precip in | 2.3 | 1.9 | 2.4 | 3.5 | 3.8 | 3.5 | 2.8 | 3.6 | 2.7 | 3.5 | 2.5 | 2.4 | 34.9 |
1996–2025 normals for Mecosta County — the climate division Big Rapids sits in. All-time county record high 98.7°F (1988-07-07); record low -28.7°F (1951-01-30). Source: NOAA / National Weather Service.