The official National Weather Service forecast for Simonton Lake — 41.7542°N, 85.975°W, 4.8 miles from I-80. Forecasts here are written by NWS IWX, this county’s forecast office.
| Elkhart County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 32 | 36 | 48 | 60 | 71 | 80 | 83 | 81 | 76 | 63 | 49 | 37 | 60 |
| Avg low °F | 18 | 19 | 28 | 37 | 49 | 59 | 62 | 60 | 53 | 42 | 32 | 23 | 40 |
| Precip in | 2.4 | 2.2 | 2.5 | 3.5 | 4.3 | 4.1 | 4.0 | 3.8 | 3.0 | 3.4 | 2.5 | 2.6 | 38.3 |
1996–2025 normals for Elkhart County — the climate division Simonton Lake sits in. All-time county record high 103.1°F (2012-07-07); record low -21.6°F (1994-01-19). Source: NOAA / National Weather Service.