The official National Weather Service forecast for Jupiter — 26.9342°N, 80.0942°W, 4.7 miles from I-95. Forecasts here are written by NWS MFL, this county’s forecast office.
| Palm Beach County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 76 | 79 | 81 | 85 | 88 | 91 | 92 | 92 | 90 | 86 | 81 | 78 | 85 |
| Avg low °F | 55 | 58 | 60 | 64 | 68 | 73 | 74 | 75 | 73 | 70 | 63 | 59 | 66 |
| Precip in | 1.9 | 2.3 | 2.6 | 2.8 | 4.9 | 8.5 | 6.4 | 7.5 | 7.9 | 4.8 | 2.7 | 2.4 | 54.7 |
1996–2025 normals for Palm Beach County — the climate division Jupiter sits in. All-time county record high 98.6°F (2026-08-19); record low 26.1°F (1989-12-25). Source: NOAA / National Weather Service.