The official National Weather Service forecast for Stuart — 27.1975°N, 80.2528°W, 5.7 miles from I-95. Forecasts here are written by NWS MLB, this county’s forecast office.
| Martin County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 74 | 77 | 80 | 84 | 87 | 90 | 91 | 91 | 89 | 86 | 80 | 76 | 84 |
| Avg low °F | 54 | 57 | 60 | 64 | 68 | 73 | 74 | 75 | 74 | 69 | 63 | 58 | 66 |
| Precip in | 2.1 | 2.1 | 2.7 | 2.8 | 4.4 | 7.9 | 5.8 | 7.2 | 7.6 | 4.8 | 3.0 | 2.6 | 53.0 |
1996–2025 normals for Martin County — the climate division Stuart sits in. All-time county record high 98.4°F (2009-06-23); record low 25.2°F (1989-12-25). Source: NOAA / National Weather Service.