# San Jose, CA weather forecast

Today in San Jose, Wed 28 Oct: high 68.0 °F, low 43.2 °F, the median of 9 free forecasts (7 for the low). Station: San Jose Intl (KSJC). As of 2026-10-28T07:44Z.

| Day | High °F | Low °F | Source spread (highs) | Source spread (lows) | Forecasts | Rain chance | Rain in |
|---|---|---|---|---|---|---|---|
| Wed 28 Oct (rest of day) | 68.0 | 43.2 | 61.3–70.0 | 41.4–47.8 | 9 | <2% | 0.00 |
| Thu 29 Oct | 69.0 | 48.9 | 64.0–71.8 | 44.2–54.0 | 10 | <2% | 0.00 |
| Fri 30 Oct | 67.3 | 48.4 | 63.1–70.0 | 44.7–51.0 | 10 | 3% | 0.00 |
| Sat 31 Oct | 63.9 | 48.2 | 61.0–67.0 | 44.0–52.0 | 10 | 6% | 0.00 |
| Sun 1 Nov | 66.0 | 45.5 | 61.0–74.0 | 38.2–51.0 | 9 | 3% | 0.00 |
| Mon 2 Nov | 70.0 | 46.0 | 63.8–75.0 | 38.9–51.7 | 9 | 4% | 0.00 |
| Tue 3 Nov | 73.8 | 50.1 | 66.3–77.0 | 41.5–54.3 | 8 | 39% | 0.00 |

Rain today: rest of day <2% (n 2: ENS, GEFS members' share, raw), 0.00 in. October: ≈ 0.02 in expected rest of month (0.00–0.05).

Alerts: none (NWS).

Weather markets here: Kalshi low. Station, rule and the number so far for each: https://groundhog.markets/p/san-jose#markets (API: https://groundhog.markets/api/v1/markets?place=san-jose).

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/san-jose