The official National Weather Service forecast for Lenox — 31.2716°N, 83.4649°W, 3.9 miles from I-75. Forecasts here are written by NWS TAE, this county’s forecast office.
| Cook County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 66 | 72 | 78 | 86 | 90 | 91 | 91 | 87 | 80 | 71 | 64 | 78 |
| Avg low °F | 38 | 42 | 47 | 53 | 61 | 69 | 71 | 71 | 66 | 56 | 46 | 41 | 55 |
| Precip in | 3.7 | 4.1 | 4.3 | 3.7 | 3.1 | 5.5 | 5.4 | 5.3 | 4.8 | 2.6 | 2.4 | 4.0 | 48.9 |
1996–2025 normals for Cook County — the climate division Lenox sits in. All-time county record high 102.7°F (1952-06-27); record low 2.4°F (1985-01-21). Source: NOAA / National Weather Service.