Hourly Forecast - Alliston
FREEZING RAIN WARNING
Freezing rain this weekend. What: Possible significant ice accretion of 5 to 10 mm. Power outages are likely. Icy and slippery conditions. Significant precipitation possible which may lead to localized flooding. When: Tonight into Sunday morning. Additional Information: Freezing rain tonight may change over to rain on Saturday as temperatures fluctuate around the freezing mark. Areas that change over to rain will see less ice accretion. Freezing rain will persist longer over higher terrain where temperatures will stay slightly cooler. Freezing rain is expected to end for all areas by midday Sunday. 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. Surfaces such as highways, roads, walkways and parking lots will become icy, slippery and hazardous. Ice build-up may cause tree branches to break. Consider postponing non-essential travel until conditions improve. Public Safety Canada encourages everyone to make an emergency plan and get an emergency kit with drinking water, food, medicine, a first-aid kit and a flashlight. For information on emergency plans and kits go to getprepared.gc.ca. 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.
- Innisfil - New Tecumseth - Angus
Regional ATOM| Date/Time (EDT) | Temp. (°C) | Weather Conditions | Likelihood of precip (%) | UV index | Wind (km/h) | Wind Chill |
|---|---|---|---|---|---|---|
| 29 March 2025 | ||||||
| 04:00 | 0 |  Freezing rain | 80 | * | S 20 | * |
| 05:00 | 0 | Freezing rain | 80 | * | SE 10 | * |
| 06:00 | 1 | Freezing rain | 80 | * | SE 10 | * |
| 07:00 | 1 | Freezing rain | 80 | * | SE 10 | * |
| 08:00 | 2 | Freezing rain | 80 | * | E 10 | * |
| 09:00 | 2 |  Periods of rain mixed with freezing rain | 80 | 1 | E 10 | * |
| 10:00 | 3 | Periods of rain mixed with freezing rain | 80 | 1 | E 10 | * |
| 11:00 | 3 | Periods of rain mixed with freezing rain | 80 | 2 | E 10 | * |
| 12:00 | 3 | Periods of rain mixed with freezing rain | 80 | 2 | E 10 | * |
| 13:00 | 4 | Periods of rain mixed with freezing rain | 80 | 2 | E 10 | * |
| 14:00 | 4 | Periods of rain mixed with freezing rain | 80 | 1 | E 10 | * |
| 15:00 | 4 | Periods of rain mixed with freezing rain | 80 | 1 | E 10 | * |
| 16:00 | 3 | Periods of rain mixed with freezing rain | 80 | 1 | E 10 | * |
| 17:00 | 3 | Periods of rain mixed with freezing rain | 80 | * | E 20 | * |
| 18:00 | 2 | Periods of rain mixed with freezing rain | 80 | * | E 20 | * |
| 19:00 | 2 | Periods of rain mixed with freezing rain | 80 | * | E 20 | * |
| 20:00 | 1 | Periods of rain mixed with freezing rain | 80 | * | NE 20 | * |
| 21:00 | 1 | Periods of rain mixed with freezing rain | 80 | * | NE 20 | * |
| 22:00 | 0 | Freezing rain | 80 | * | NE 20 | * |
| 23:00 | 0 | Freezing rain | 80 | * | NE 20 | * |
| 30 March 2025 | ||||||
| 00:00 | 0 | Freezing rain | 80 | * | NE 20 | * |
| 01:00 | -1 | Freezing rain | 80 | * | NE 20 | -6 |
| 02:00 | -1 | Freezing rain | 80 | * | NE 20 | -7 |
| 03:00 | -1 | Freezing rain | 80 | * | NE 20 | -7 |
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