Hourly Forecast - Georgian Bay Islands National Park of Canada
SPECIAL WEATHER STATEMENT
Significant rainfall is possible this weekend. The frozen ground has a reduced ability to absorb this rainfall. What: Total rainfall amounts of 20 to 40 mm with locally higher amounts possible. When: Saturday evening through Sunday night. Additional information: Rain, at times heavy, is expected Saturday night into Sunday. With a risk of thunderstorms, local rainfall amounts in excess of 40 mm are possible over some areas. Localized flooding in low-lying areas and water pooling on roads are possible. For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
- Port Carling - Port Severn
Regional ATOM| Date/Time (EDT) | Temp. (°C) | Weather Conditions | Likelihood of precip (%) | UV index | Wind (km/h) |
|---|---|---|---|---|---|
| 14 March 2025 | |||||
| 11:00 | 4 |  Mainly sunny | 0 | 5 | SE 15 |
| 12:00 | 6 | Mainly sunny | 0 | 6 | SE 15 |
| 13:00 | 8 | Mainly sunny | 0 | 6 | SE 15 |
| 14:00 | 10 | Mainly sunny | 0 | 5 | SE 15 |
| 15:00 | 10 | Mainly sunny | 0 | 3 | SE 15 |
| 16:00 | 9 | Mainly sunny | 0 | 2 | SE 15 |
| 17:00 | 9 |  A mix of sun and cloud | 0 | 1 | SE 20 |
| 18:00 | 9 | A mix of sun and cloud | 20 | * | SE 20 |
| 19:00 | 9 |  Partly cloudy | 20 | * | SE 20 |
| 20:00 | 9 | Partly cloudy | 20 | * | SE 20 |
| 21:00 | 9 | Partly cloudy | 20 | * | SE 20 |
| 22:00 | 8 | Partly cloudy | 20 | * | SE 20 |
| 23:00 | 8 |  Chance of showers. Risk of thunderstorms | 40 | * | SE 20 |
| 15 March 2025 | |||||
| 00:00 | 8 | Chance of showers. Risk of thunderstorms | 40 | * | SE 20 |
| 01:00 | 7 | Chance of showers. Risk of thunderstorms | 40 | * | SE 20 |
| 02:00 | 7 | Chance of showers. Risk of thunderstorms | 40 | * | SE 20 |
| 03:00 | 7 | Chance of showers. Risk of thunderstorms | 40 | * | SE 20 |
| 04:00 | 7 | Chance of showers. Risk of thunderstorms | 40 | * | SE 20 |
| 05:00 | 7 | Chance of showers. Risk of thunderstorms | 40 | * | SE 20 |
| 06:00 | 6 |  A few clouds | 20 | * | SE 20 |
| 07:00 | 6 | Mainly sunny | 20 | * | SE 20 |
| 08:00 | 5 | Mainly sunny | 20 | 1 | SE 20 |
| 09:00 | 6 | Mainly sunny | 20 | 2 | SE 20 |
| 10:00 | 8 |  Chance of showers. Risk of thunderstorms | 60 | 3 | SE 20 |
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