The official National Weather Service forecast for Calexico — 32.679°N, 115.4989°W, population 38,491, 13.9 miles from I-8. Forecasts here are written by NWS PSR, this county’s forecast office.
| Imperial County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 70 | 73 | 80 | 86 | 95 | 104 | 108 | 107 | 101 | 90 | 78 | 69 | 88 |
| Avg low °F | 45 | 47 | 52 | 57 | 64 | 72 | 80 | 80 | 74 | 62 | 52 | 44 | 61 |
| Precip in | 0.5 | 0.4 | 0.3 | 0.1 | 0.0 | 0.0 | 0.1 | 0.3 | 0.3 | 0.2 | 0.2 | 0.4 | 2.8 |
1996–2025 normals for Imperial County — the climate division Calexico sits in. All-time county record high 120.4°F (1990-06-27); record low 25.8°F (1990-12-23). Source: NOAA / National Weather Service.