The official National Weather Service forecast for New Port Richey — 28.2442°N, 82.7193°W, 20.4 miles from I-75. Forecasts here are written by NWS TBW, this county’s forecast office.
| Pasco County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 70 | 74 | 78 | 83 | 88 | 90 | 91 | 91 | 89 | 85 | 78 | 73 | 82 |
| Avg low °F | 48 | 52 | 55 | 60 | 66 | 72 | 74 | 74 | 72 | 65 | 56 | 52 | 62 |
| Precip in | 2.7 | 2.4 | 2.9 | 2.5 | 3.0 | 8.2 | 8.5 | 8.7 | 6.6 | 2.7 | 1.9 | 2.6 | 52.7 |
1996–2025 normals for Pasco County — the climate division New Port Richey sits in. All-time county record high 98.4°F (1981-06-18); record low 17.6°F (1962-12-13). Source: NOAA / National Weather Service.