# Ottawa, ON weather forecast

Today in Ottawa, Wed 28 Oct: low −1 °C so far; high 7 °C, the median of 7 free forecasts. Station: Cartier Intl (CYOW). As of 2026-10-28T06:57Z.

| Day | High °C | Low °C | Source spread (highs) | Source spread (lows) | Forecasts | Rain chance | Rain mm |
|---|---|---|---|---|---|---|---|
| Wed 28 Oct (rest of day) | 7.0 | −0.7 | 6.0–8.3 | −3.3–0.2 | 7 | 26% | 0.1 |
| Thu 29 Oct | 17.9 | 2.0 | 16.4–18.9 | −0.3–2.5 | 8 | 69% | 0.7 |
| Fri 30 Oct | 11.4 | 5.4 | 11.0–13.4 | 1.3–6.1 | 8 | 5% | 0.0 |
| Sat 31 Oct | 9.2 | 1.2 | 8.5–10.1 | −0.8–2.3 | 8 | <2% | 0.0 |
| Sun 1 Nov | 12.8 | 0.6 | 10.5–13.9 | −0.6–2.2 | 7 | 13% | 0.0 |
| Mon 2 Nov | 13.6 | 3.0 | 11.1–15.1 | 2.6–7.4 | 7 | 32% | 0.0 |
| Tue 3 Nov | 12.3 | 3.9 | 8.5–16.3 | 0.3–5.2 | 7 | 34% | 0.5 |

Rain today: no rain gauge feed here; rest of day 26% (n 3: ENS, GEFS, GEPS members' share, raw), 0.1 mm. October: ≈ 1.3 mm expected rest of month (0.3–3.4).

Alerts: not available here.

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); METAR from NAV CANADA via NOAA AWC; modified by groundhog. Full: groundhog.markets/credits
Page: https://groundhog.markets/p/ottawa