The official National Weather Service forecast for Greenville — 43.1775°N, 85.2528°W, population 10,265, 21 miles from I-96. Forecasts here are written by NWS GRR, this county’s forecast office.
| Montcalm County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 33 | 44 | 57 | 69 | 79 | 83 | 80 | 74 | 60 | 46 | 35 | 58 |
| Avg low °F | 15 | 16 | 24 | 34 | 45 | 55 | 58 | 57 | 50 | 39 | 30 | 22 | 37 |
| Precip in | 2.3 | 2.0 | 2.5 | 3.5 | 3.9 | 3.5 | 3.0 | 3.5 | 2.8 | 3.6 | 2.4 | 2.4 | 35.4 |
1996–2025 normals for Montcalm County — the climate division Greenville sits in. All-time county record high 99.6°F (1988-07-07); record low -24.7°F (1951-01-30). Source: NOAA / National Weather Service.