Hourly Forecast - Halton Hills
2 WEATHER ALERTS
FOG ADVISORY
Near zero visibility in fog is expected or occurring. Locally dense fog is expected to persist into early Saturday morning before dissipating. Travel is expected to be hazardous due to reduced visibility in some locations. If visibility is reduced while driving, turn on your lights and maintain a safe following distance. 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.
- Halton Hills - Milton
Regional ATOMSPECIAL WEATHER STATEMENT
Freezing rain possible tonight. More significant freezing rain threat Saturday night into Sunday morning. What: Possible ice accretion of 3 to 5 mm. Possible utility outages. Slippery surfaces and broken tree branches from ice build-up. When: Tonight into Saturday morning. Additional freezing rain Saturday night into Sunday morning. Additional Information: There is a risk of freezing rain tonight, possibly into Saturday morning, as temperatures will be near the freezing mark. A second and more significant round of freezing rain is expected Saturday night into Sunday morning as temperatures cool below the freezing mark. Freezing rain warnings are possible as the event draws nearer. 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.
- Halton Hills - Milton
Regional ATOM| Date/Time (EDT) | Temp. (°C) | Weather Conditions | Likelihood of precip (%) | UV index | Wind (km/h) |
|---|---|---|---|---|---|
| 29 March 2025 | |||||
| 00:00 | 1 |  Chance of showers | 40 | * | E 10 |
| 01:00 | 1 | Chance of showers | 40 | * | E 10 |
| 02:00 | 1 | Chance of showers | 40 | * | NE 10 |
| 03:00 | 1 | Chance of showers | 40 | * | NE 10 |
| 04:00 | 2 | Chance of showers. Risk of freezing rain | 40 | * | NE 10 |
| 05:00 | 2 | Chance of showers. Risk of freezing rain | 40 | * | SE 10 |
| 06:00 | 3 | Chance of showers. Risk of freezing rain | 40 | * | SE 10 |
| 07:00 | 3 | Chance of showers | 40 | * | SE 10 |
| 08:00 | 4 | Chance of showers | 40 | * | VR 5 |
| 09:00 | 5 | Periods of rain | 80 | 1 | VR 5 |
| 10:00 | 5 | Periods of rain | 80 | 1 | VR 5 |
| 11:00 | 6 | Periods of rain | 80 | 2 | E 10 |
| 12:00 | 6 | Periods of rain | 80 | 2 | E 10 |
| 13:00 | 7 | Periods of rain | 80 | 2 | E 10 |
| 14:00 | 7 | Periods of rain | 80 | 1 | E 10 |
| 15:00 | 7 | Periods of rain | 80 | 1 | E 10 |
| 16:00 | 6 | Periods of rain | 80 | 1 | E 10 |
| 17:00 | 6 | Periods of rain mixed with freezing rain | 80 | * | E 10 |
| 18:00 | 5 | Periods of rain mixed with freezing rain | 80 | * | E 10 |
| 19:00 | 4 | Periods of rain mixed with freezing rain | 80 | * | E 10 |
| 20:00 | 3 | Periods of rain mixed with freezing rain | 80 | * | NE 15 |
| 21:00 | 2 | Periods of rain mixed with freezing rain | 80 | * | NE 15 |
| 22:00 | 2 | Periods of rain mixed with freezing rain | 80 | * | NE 15 |
| 23:00 | 1 | Periods of rain mixed with freezing rain | 80 | * | NE 15 |
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