Weather warnings

Weather warnings for Acton, ON

Updated

No warnings; 1 advisory in effect: Fog Advisory until Thu 10:00 am Source: Environment and Climate Change Canada.

Official weather warnings, watches and advisories for Acton, Ontario, Canada, updated every few minutes, plus severe weather flags from the 48-hour forecast.

Active warnings
0 ECCC public weather alerts
Watches / advisories
1
Next alert ends
Thu 10:00 am Fog Advisory
Forecast flags
0 GodsView, not official

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Weather warnings for Acton, ON now

1 official alert covers Acton, Ontario, Canada right now: 0 warnings and 1 watch or advisory.

Fog Advisory (Yellow) until Thu 10:00 am. Near-zero visibility in fog is expected. Areas of dense fog will impact the area this morning. Travel will likely be hazardous in some locations. Visibility will likely be suddenly reduced at times. Be prepared for areas of near-zero visibility and allow extra time to reach your destination. Please continue to monitor...

AlertLevelAreaFromUntil
Fog AdvisoryYellowHalton Hills - Milton, ONThu 5:40 amThu 10:00 am

Times are local (America/Toronto). Source: Environment and Climate Change Canada.

Weather warnings near Acton, ON

Status of nearby cities from our 1-minute-old snapshot of the same official feeds.

CityDistanceActive alerts
Halton Hills9 km1: Fog Advisory
Georgetown, ON10 km1: Fog Advisory
Milton18 km1: Fog Advisory
Guelph20 kmNone
Brampton23 kmNone
Caledon26 km1: Fog Advisory
Mississauga31 kmNone
Burlington32 km1: Fog Advisory

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.

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Weather warnings elsewhere

Data: Environment and Climate Change Canada, Open-Meteo forecast.