# Santa Ana, CA weather forecast

Today in Santa Ana, Wed 28 Oct: high 75.5 °F, low 56.7 °F, the median of 7 free forecasts (6 for the low). Station: Tustin (KNTK). As of 2026-10-28T08:37Z.

| Day | High °F | Low °F | Source spread (highs) | Source spread (lows) | Forecasts | Rain chance | Rain in |
|---|---|---|---|---|---|---|---|
| Wed 28 Oct (rest of day) | 75.5 | 56.7 | 74.1–76.0 | 53.6–61.8 | 7 | <2% | 0.00 |
| Thu 29 Oct | 72.8 | 58.5 | 70.3–75.0 | 56.3–62.0 | 8 | 6% | 0.00 |
| Fri 30 Oct | 72.0 | 61.0 | 67.9–73.5 | 56.9–63.9 | 8 | 52% | 0.01 |
| Sat 31 Oct | 69.8 | 58.9 | 66.6–72.3 | 56.0–60.4 | 8 | 73% | 0.09 |
| Sun 1 Nov | 72.0 | 59.0 | 66.3–74.5 | 58.5–62.4 | 7 | 71% | 0.37 |
| Mon 2 Nov | 77.0 | 56.9 | 70.3–85.8 | 55.0–63.8 | 7 | 10% | 0.00 |
| Tue 3 Nov | 78.2 | 58.0 | 77.0–86.0 | 51.0–64.8 | 7 | 23% | 0.00 |

Rain today: rest of day <2% (n 2: ENS, GEFS members' share, raw), 0.00 in. October: ≈ 0.19 in expected rest of month (<0.01–0.56).

Alerts: none (NWS).

Credits: NOAA/NWS (public domain); MET Norway, DWD, GeoNames (CC BY 4.0); ECCC (Open Licence); based on ECMWF data (CC BY 4.0; ECMWF accepts no liability); modified by groundhog. Full: groundhog.markets/credits
Page: https://groundhog.markets/p/santa-ana