The official National Weather Service forecast for Tiptonville — 36.3784°N, 89.472°W, 11.8 miles from I-55.
| Lake County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 45 | 50 | 60 | 71 | 79 | 87 | 89 | 89 | 84 | 73 | 59 | 49 | 70 |
| Avg low °F | 29 | 33 | 40 | 49 | 59 | 67 | 70 | 68 | 61 | 49 | 39 | 32 | 50 |
| Precip in | 4.1 | 4.3 | 5.1 | 5.5 | 5.4 | 3.8 | 4.2 | 3.2 | 3.4 | 3.8 | 4.1 | 4.7 | 51.6 |
1996–2025 normals for Lake County — the climate division Tiptonville sits in. All-time county record high 105.3°F (1980-07-17); record low -11.5°F (1985-01-20). Source: NOAA / National Weather Service.