The official National Weather Service forecast for Muskegon — 43.2342°N, 86.2484°W, population 166,414, 4.5 miles from I-96. Forecasts here are written by NWS GRR, this county’s forecast office.
| Muskegon County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 32 | 34 | 44 | 57 | 69 | 78 | 82 | 80 | 74 | 61 | 48 | 37 | 58 |
| Avg low °F | 18 | 18 | 25 | 35 | 45 | 55 | 59 | 58 | 51 | 41 | 32 | 24 | 38 |
| Precip in | 2.3 | 2.0 | 2.4 | 3.5 | 3.8 | 3.5 | 2.9 | 3.1 | 2.9 | 3.9 | 2.7 | 2.5 | 35.5 |
1996–2025 normals for Muskegon County — the climate division Muskegon sits in. All-time county record high 99.8°F (2012-07-07); record low -22.5°F (1996-02-03). Source: NOAA / National Weather Service.