Weather warnings

Weather warnings for Bolton, 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 Bolton, 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 Bolton, ON now

1 official alert covers Bolton, 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 AdvisoryYellowCaledon, ONThu 5:40 amThu 10:00 am

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

Weather warnings near Bolton, ON

Status of nearby cities from our 10-minute-old snapshot of the same official feeds.

CityDistanceActive alerts
Vaughan20 km1: Fog Advisory
Caledon21 km1: Fog Advisory
Brampton22 kmNone
Richmond Hill24 km1: Fog Advisory
Aurora, ON26 km1: Fog Advisory
Thornhill26 km1: Fog Advisory
Newmarket29 km1: Fog Advisory
Georgetown, ON29 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.