– Lat/Long: 48.78° N 113.73° W
Mount Grinnell Weather Forecast
Lewis Range · United StatesIssued: 11 pm Tue 20 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 11 pm Tue 20 Oct Local Time
Updates in:
Update imminent hr min s
2 Mount Grinnell Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Fri morning. Freeze-thaw conditions (max 6°C on Thu afternoon, min -3°C on Fri afternoon). Winds decreasing (near gales from the WSW on Wed afternoon, calm by Thu night). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Sat night. Temperatures will be below freezing (max -5°C on Fri night, min -12°C on Sat night). Winds decreasing (fresh winds from the WSW on Fri night, light winds from the SSE by Sat night). | |||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | |  |  |  |  |  | |  | | |  | |
clear | some clouds | clear | clear | clear | some clouds | light rain | mod. snow | cloudy | some clouds | light snow | light snow | heavy snow | light snow | light snow | mod. snow | |
Cloud base (m) | 8700 | 9250 | 7000 | 3300 | 2550 | 1950 | 2000 | 1900 | 2050 | 1950 | 1900 | 1900 | 1900 | |||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | 6 | — | — | 1 | 1 | 19 | 4 | 5 | 8 |
mm | — | — | — | — | — | — | 0.1 | — | — | — | — | — | — | — | — | — |
max °C | 4 | 5 | 5 | 4 | 5 | 6 | 5 | 1 | -1 | -5 | -6 | -6 | -9 | -11 | -12 | -10 |
min °C | 3 | 4 | 4 | 3 | 3 | 6 | 3 | 0 | -3 | -6 | -6 | -7 | -12 | -12 | -12 | -12 |
chill °C | -4 | -3 | -3 | -4 | -3 | 3 | 3 | -2 | -8 | -10 | -12 | -14 | -18 | -18 | -18 | -20 |
Freezing level m | 3300 | 3450 | 3450 | 3200 | 3300 | 3450 | 3500 | 2850 | 2400 | 1300 | 1300 | 1850 | 850 | 650 | 800 | 500 |
 | — | 8:03 | — | — | 8:04 | — | — | 8:06 | — | — | 8:07 | — | — | 8:10 | — | — |
 | — | — | 6:34 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:27 | — |
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Mount Grinnell Weather (Days 0-3):
The weather forecast for Mount Grinnell is: A light covering of new snow mostly falling on Fri morning. Freeze-thaw conditions (max 6°C on Thu afternoon, min -3°C on Fri afternoon). Winds decreasing (near gales from the WSW on Wed afternoon, calm by Thu night).
Mount Grinnell Weather (Days 3-6):
A heavy fall of snow, heaviest during Sat night. Temperatures will be below freezing (max -5°C on Fri night, min -12°C on Sat night). Winds decreasing (fresh winds from the WSW on Fri night, light winds from the SSE by Sat night).
This table gives the weather forecast for Mount Grinnell at the specific elevation of 2698 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Grinnell. To see the weather forecasts for the other elevations, use the tab navigation above the table.For a wider overview of the weather, consult the Weather Map of Montana.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
Carway-Alta | |||||
 | |||||
WatertonParkGate- Alta | |||||
Bullhorn Headwaters- Alta | |||||
Cardston- Alta | |||||
| |||||
Bullhorn Coulee Reservoir- Alta |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.
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