Weather warnings
Weather warnings for Grimsby, ON
Updated
No official weather warnings for Grimsby, ON right now Checked against ECCC public weather alerts at Sun, Oct 25, 1:00 pm (17:00 UTC).
Official weather warnings, watches and advisories for Grimsby, Ontario, Canada, updated every few minutes, plus severe weather flags from the 48-hour forecast.
- Active warnings
- 0 ECCC public weather alerts
- Watches / advisories
- 0
- Max gust next 48 h
- 36 km/h Mon 2:00 am
- Rain next 48 h
- 0 mm
- Temperature range
- 10 to 20°C
- Forecast flags
- 0 GodsView, not official
Weather warnings for Grimsby, ON now
Environment and Climate Change Canada has no active warnings, watches or advisories covering Grimsby, Ontario, Canada as of Sun, Oct 25, 1:00 pm (17:00 UTC). We match the official feed to the city centre's exact location, so an alert for a neighbouring county or region does not show here.
Times are local (America/Toronto). Source: Environment and Climate Change Canada.
GodsView forecast flags (not an official warning)
The forecast model shows nothing that crosses our thresholds for Grimsby, ON in the next 48 hours.
Expect temperatures between 10 and 20°C, 0 mm of precipitation and gusts peaking near 36 km/h.
Thresholds: gusts 70+ km/h (90+ damaging), 50+ mm rain in 24 h or 10+ mm in an hour, 10+ cm snow in 24 h, thunderstorm and freezing-rain weather codes, 35°C+ heat, -25°C or wind chill -30°C. Open-Meteo model forecast; official warnings take precedence.
Weather warnings near Grimsby, ON
Status of nearby cities from our 4-minute-old snapshot of the same official feeds.
| City | Distance | Active alerts |
|---|---|---|
| Stoney Creek | 16 km | None |
| Hamilton | 24 km | None |
| St. Catharines | 26 km | None |
| Oakville | 29 km | None |
| Burlington | 30 km | None |
| Welland | 35 km | None |
| Niagara Falls | 42 km | None |
| Mississauga | 43 km | None |
Warning, watch or advisory: what the levels mean
Environment Canada issues Warnings (severe weather is occurring or expected), Watches (conditions favourable for severe weather), Advisories (less severe events such as fog or frost) and Special Weather Statements. Since 2025 alerts also carry a colour (yellow, orange, red) reflecting expected impact.
Nearby cities
More for Grimsby
Weather warnings elsewhere
Data: Environment and Climate Change Canada, Open-Meteo forecast.