Hourly Forecast - Marysville (Frontenac)
2 WEATHER ALERTS
RAINFALL WARNING
Rain, heavy at times is expected. The ground, already near saturation, has little ability to absorb further rainfall. What: Rain, at times heavy. Total rainfall amounts of 20 to 40 mm. Locally higher amounts are possible if thunderstorms repeatedly impact the same area. When: Wednesday afternoon through Thursday morning. Additional information: Rain advances northeastward Wednesday afternoon into Wednesday evening. With thunderstorms expected, rainfall amounts may exceed 50 mm over some areas. Rain will end from west to east Thursday morning. 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. Localized flooding in low-lying areas is possible. Heavy downpours can cause flash floods and water pooling on roads. 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.
- Kingston - Odessa - Frontenac Islands
Regional ATOMFREEZING RAIN WARNING
Freezing rain expected Wednesday night into early Thursday morning. What: Freezing rain with ice accretion of 2 to 5 mm on some surfaces. When: Wednesday night through early Thursday morning. Additional information: This freezing rain event will not be nearly as significant as the ice storm from this past weekend. Snow and ice pellets will advance northeastward Wednesday afternoon before transitioning to freezing rain Wednesday night. Prior to the transition to freezing rain, snowfall amounts up to 5 cm may occur over some locations. Easterly winds gusting to near 50 km/h may exacerbate any tree damage. As temperatures rise above the freezing mark, freezing rain will transition to rain overnight into early Thursday morning. Surfaces such as highways, roads, walkways and parking lots may become icy and slippery. Ice build-up may cause tree branches to break. Take extra care when walking or driving in affected areas. 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.
- Kingston - Odessa - Frontenac Islands
Regional ATOM| Date/Time (EDT) | Temp. (°C) | Weather Conditions | Likelihood of precip (%) | UV index | Wind (km/h) | Wind Chill |
|---|---|---|---|---|---|---|
| 1 April 2025 | ||||||
| 19:00 | 2 |  Sunny | 0 | * | NW 15 | * |
| 20:00 | 1 |  Clear | 0 | * | NW 10 | * |
| 21:00 | 0 | Clear | 0 | * | NW 10 | * |
| 22:00 | -1 | Clear | 0 | * | NW 10 | -5 |
| 23:00 | -2 | Clear | 0 | * | N 10 | -6 |
| 2 April 2025 | ||||||
| 00:00 | -3 | Clear | 0 | * | N 10 | -7 |
| 01:00 | -3 | Clear | 0 | * | N 10 | -7 |
| 02:00 | -4 | Clear | 0 | * | N 10 | -8 |
| 03:00 | -4 | Clear | 0 | * | N 10 | -8 |
| 04:00 | -5 | Clear | 0 | * | N 10 | -9 |
| 05:00 | -5 | Clear | 0 | * | NE 10 | -9 |
| 06:00 | -5 | Clear | 0 | * | NE 10 | -10 |
| 07:00 | -6 | Sunny | 0 | * | NE 10 | -10 |
| 08:00 | -6 | Sunny | 10 | 1 | E 20 | -13 |
| 09:00 | -4 |  Mainly sunny | 10 | 2 | E 20 | -11 |
| 10:00 | -3 |  A mix of sun and cloud | 10 | 4 | E 20 | -9 |
| 11:00 | -1 | A mix of sun and cloud | 10 | 5 | E 30 | -8 |
| 12:00 | 0 |  Mainly cloudy | 10 | 5 | E 30 | * |
| 13:00 | 0 |  Snow mixed with ice pellets | 100 | 1 | E 30 | * |
| 14:00 | 1 | Snow mixed with ice pellets | 100 | 1 | E 30 | * |
| 15:00 | 1 | Snow mixed with ice pellets. Risk of freezing rain | 100 | 1 | E 30 | * |
| 16:00 | 1 | Snow mixed with ice pellets. Risk of freezing rain | 100 | * | E 30 | * |
| 17:00 | 1 |  Freezing rain mixed with ice pellets | 100 | * | E 20 gusts 40 | * |
| 18:00 | 1 | Freezing rain mixed with ice pellets | 100 | * | E 20 gusts 40 | * |
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