The official National Weather Service forecast for Tiverton — 41.6259°N, 71.2134°W, 5.7 miles from I-195.
| Newport County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 41 | 47 | 57 | 66 | 75 | 81 | 80 | 74 | 64 | 53 | 44 | 60 |
| Avg low °F | 24 | 25 | 31 | 39 | 49 | 58 | 65 | 63 | 57 | 47 | 37 | 29 | 44 |
| Precip in | 4.0 | 3.6 | 4.9 | 4.3 | 3.9 | 3.7 | 3.3 | 3.5 | 4.1 | 4.7 | 3.7 | 4.7 | 48.4 |
1996–2025 normals for Newport County — the climate division Tiverton sits in. All-time county record high 97.7°F (2025-06-25); record low -7.5°F (2023-02-04). Source: NOAA / National Weather Service.