The official National Weather Service forecast for Clarksville City — 32.5296°N, 94.903°W, 8.1 miles from I-20. Forecasts here are written by NWS SHV, this county’s forecast office.
| Gregg County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 58 | 61 | 70 | 77 | 84 | 90 | 94 | 95 | 89 | 79 | 68 | 60 | 77 |
| Avg low °F | 36 | 40 | 47 | 53 | 62 | 70 | 73 | 73 | 66 | 54 | 45 | 38 | 55 |
| Precip in | 4.0 | 3.9 | 4.6 | 4.4 | 4.9 | 4.0 | 3.1 | 2.9 | 3.2 | 4.2 | 3.8 | 4.2 | 47.2 |
1996–2025 normals for Gregg County — the climate division Clarksville City sits in. All-time county record high 109.2°F (2011-08-04); record low -1.7°F (2021-02-16). Source: NOAA / National Weather Service.