Calculated at 1:00 am EDT Monday, May 18, 2026
4

low risk
(1 - 3)
moderate risk
(4 - 6)
high risk
(7 - 10)
very high risk
Forecast for Grand Bend
- Forecast Air Quality Health Index maximums for Grand Bend
- Issued at: 5:00 pm EDT May 17, 2026
Forecast Air Quality Health Index maximums for Grand Bend
| Sunday | 4 - Moderate Risk |  |
| Sunday night | 4 - Moderate Risk |  |
| Monday | 4 - Moderate Risk |  |
Health message for Grand Bend
- Current Air Quality Health Index:
4
- Calculated at 1:00 am EDT Monday, May 18, 2026
- Risk: Moderate
At-risk population:
General population:
- No need to modify your usual outdoor activities unless you experience symptoms such as coughing and throat irritation.
See the Ontario Ministry of the Environment, Conservation and Parks air quality health messages.
Note: AQHI readings on this web page are based on automatically polled data and have not undergone final verification.