– Lat/Long: 36.66° N 118.31° W
Mount Williamson Weather Forecast
Sierra Nevada · United StatesIssued: 3 am Sat 14 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sat 14 Nov Local Time
Updates in:
Update imminent hr min s
4 Mount Williamson Elevations: 4 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Freeze-thaw conditions (max 1°C on Sun morning, min -10°C on Mon night). Wind will be generally light. | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Wed night. Temperatures will be well below freezing (max -6°C on Tue night, min -10°C on Thu afternoon). Winds increasing (light winds from the WNW on Tue morning, fresh winds from the SW by Thu morning). | |||||||||||||||||
Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | |  | |  | | | |  | |  | | | | |
clear | clear | some clouds | clear | clear | some clouds | some clouds | some clouds | clear | some clouds | clear | some clouds | snow shwrs | snow shwrs | snow shwrs | snow shwrs | snow shwrs | snow shwrs | |
Cloud base (m) | 9450 | 7250 | 9200 | 6750 | 2250 | 2850 | 9200 | 3400 | 2100 | 1800 | 1800 | 1800 | ||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 42 | 7 | 21 | 24 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -2 | -2 | 0 | 1 | -1 | -1 | -3 | -4 | -7 | -8 | -8 | -6 | -6 | -7 | -8 | -8 | -9 | -8 |
min °C | -3 | -2 | -1 | 0 | -1 | -3 | -4 | -6 | -10 | -9 | -8 | -7 | -6 | -7 | -8 | -9 | -10 | -10 |
chill °C | -7 | -5 | -4 | -5 | -6 | -9 | -11 | -14 | -17 | -15 | -14 | -13 | -13 | -14 | -16 | -18 | -19 | -18 |
Freezing level m | 2900 | 3150 | 3450 | 3600 | 3300 | 3100 | 3000 | 2850 | 2150 | 2150 | 2350 | 2350 | 2550 | 2450 | 2200 | 2250 | 2100 | 2000 |
 | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | 4:44 | — | — | 4:44 | — | — | 4:43 | — | — | 4:42 | — | — | 4:42 | — | — | 4:40 | — |
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Mount Williamson Weather (Days 0-3):
The weather forecast for Mount Williamson is: Mostly dry. Freeze-thaw conditions (max 1°C on Sun morning, min -10°C on Mon night). Wind will be generally light.
Mount Williamson Weather (Days 3-6):
A heavy fall of snow, heaviest during Wed night. Temperatures will be well below freezing (max -6°C on Tue night, min -10°C on Thu afternoon). Winds increasing (light winds from the WNW on Tue morning, fresh winds from the SW by Thu morning).
This table gives the weather forecast for Mount Williamson at the specific elevation of 3500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Williamson. 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 California.
* 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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Upload new photoStaring up the class 2 chute!
The west face
Staring down the class 2 chute
Sunset plumage with a Williamson backdrop
The majestic alpenglow
class 3 chimney
Mount Williamson