Hourly Forecast - St. Marks
YELLOW WARNING - SNOWFALL
Impact Level: Moderate
Forecast Confidence: High
A long period of snowfall with total amounts of 15 to 20 cm is expected. Heavy snowfall is expected for much of southern and western Manitoba beginning Tuesday evening. The heaviest snow will fall along the Manitoba escarpment and the higher terrain of the Parklands region, where amounts could reach 30 cm. Elsewhere, generally 15 to 20 cm of snow is expected. The snow will taper off on Thursday morning. Travel will likely be challenging. Visibility will likely be reduced at times. Road closures are possible. Local utility outages are possible. Prepare for quickly changing and deteriorating travel conditions. Snowfall warnings are issued when significant impacts are expected due to snowfall accumulations. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to MBstorm@ec.gc.ca, call 1-800-239-0484 or post reports on X using #MBStorm. For more information about the alerting program, please visit: Colour-coded Weather Alerts.
In effect for:
- R.M. of Portage la Prairie incl. St. Ambroise
Regional ATOM| Date/Time (CST) | Temp. (°C) | Weather Conditions | Likelihood of precip (%) | UV index | Wind (km/h) | Wind Chill |
|---|---|---|---|---|---|---|
| 16 February 2026 | ||||||
| 17:00 | -1 |  Sunny | 0 | * | NE 20 | -7 |
| 18:00 | -2 |  Clear | 0 | * | NE 20 | -8 |
| 19:00 | -3 |  Chance of flurries | 30 | * | NE 20 | -9 |
| 20:00 | -3 | Chance of flurries | 30 | * | NE 20 | -9 |
| 21:00 | -4 | Chance of flurries | 30 | * | NE 20 | -10 |
| 22:00 | -5 | Chance of flurries | 30 | * | NE 20 | -11 |
| 23:00 | -5 | Chance of flurries | 30 | * | NE 20 | -12 |
| 17 February 2026 | ||||||
| 00:00 | -6 |  Partly cloudy | 10 | * | NE 20 | -13 |
| 01:00 | -6 | Partly cloudy | 10 | * | NE 20 | -13 |
| 02:00 | -7 | Partly cloudy | 10 | * | NE 20 | -14 |
| 03:00 | -7 | Partly cloudy | 10 | * | NE 20 | -14 |
| 04:00 | -8 | Partly cloudy | 10 | * | NE 20 | -15 |
| 05:00 | -8 | Partly cloudy | 10 | * | NE 20 | -16 |
| 06:00 | -9 | Partly cloudy | 0 | * | NE 20 | -17 |
| 07:00 | -8 | Partly cloudy | 0 | * | NE 20 | -15 |
| 08:00 | -6 |  A mix of sun and cloud | 0 | * | NE 20 | -13 |
| 09:00 | -5 | A mix of sun and cloud | 0 | * | NE 20 | -12 |
| 10:00 | -4 | A mix of sun and cloud | 0 | 1 | NE 20 | -10 |
| 11:00 | -3 | A mix of sun and cloud | 0 | 1 | NE 20 | -9 |
| 12:00 | -2 | A mix of sun and cloud | 20 | 1 | NE 30 gusts 50 | -9 |
| 13:00 | -2 | A mix of sun and cloud | 20 | 1 | NE 30 gusts 50 | -9 |
| 14:00 | -1 | A mix of sun and cloud | 20 | 1 | NE 30 gusts 50 | -8 |
| 15:00 | -1 |  Overcast | 20 | * | NE 30 gusts 50 | -8 |
| 16:00 | -1 | Overcast | 20 | * | NE 30 gusts 50 | -8 |
* Value not significant
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