Hourly Forecast - Sylvia Grinnell Territorial Park
| Date/Time (EST) | Temp. (°C) | Weather Conditions | Likelihood of precip (%) | Wind (km/h) | Wind Chill |
|---|---|---|---|---|---|
| 16 December 2025 | |||||
| 20:00 | -20 |  Partly cloudy | 0 | E 10 | -27 |
| 21:00 | -20 | Partly cloudy | 0 | E 10 | -28 |
| 22:00 | -21 | Partly cloudy | 0 | E 10 | -28 |
| 23:00 | -22 | Partly cloudy | 0 | E 10 | -29 |
| 17 December 2025 | |||||
| 00:00 | -22 | Partly cloudy | 0 | E 10 | -30 |
| 01:00 | -23 | Partly cloudy | 20 | N 10 | -31 |
| 02:00 | -22 | Partly cloudy | 20 | N 10 | -30 |
| 03:00 | -22 | Partly cloudy | 20 | N 10 | -29 |
| 04:00 | -21 |  Mainly cloudy | 20 | N 10 | -28 |
| 05:00 | -21 | Mainly cloudy | 20 | N 10 | -28 |
| 06:00 | -20 |  Cloudy | 20 | N 10 | -28 |
| 07:00 | -20 |  Periods of light snow | 80 | N 10 | -27 |
| 08:00 | -18 | Periods of light snow | 80 | N 10 | -25 |
| 09:00 | -17 | Periods of light snow | 80 | N 10 | -23 |
| 10:00 | -15 | Periods of light snow | 80 | N 10 | -21 |
| 11:00 | -15 | Periods of light snow | 80 | N 10 | -21 |
| 12:00 | -14 | Periods of light snow | 80 | N 10 | -20 |
| 13:00 | -14 |  Snow | 80 | E 10 | -20 |
| 14:00 | -13 | Snow | 80 | E 10 | -19 |
| 15:00 | -12 | Snow | 80 | E 10 | -18 |
| 16:00 | -11 | Snow | 80 | E 10 | -16 |
| 17:00 | -11 | Snow | 80 | E 10 | -16 |
| 18:00 | -10 | Snow | 80 | E 10 | -16 |
| 19:00 | -10 | Snow | 80 | E 10 | -15 |
* Value not significant
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