Summit today
Is it safe to climb Grande Bosse today?
Grande Bosse today (updated 20:15, 18 Oct): up to -9°C at the summit, feeling as cold as -22°C, summit wind 48 mph gusting 68 mph, 85% chance of rain, with 3.6 cm of snow forecast. A poor day for the hills. Best day this week: Saturday, summit gusts 46 mph.
Grande Bosse weather today
Heavy snow showers, up to -9°C at the summit, feeling as cold as -22°C, summit wind 48 mph gusting 68 mph, 85% chance of rain. Rated Poor.
Grande Bosse weather tomorrow
Monday 19 October: slight snow showers, up to -7°C at the summit, feeling as cold as -20°C, summit wind 42 mph gusting 61 mph, 30% chance of rain. Rated Poor.
Grande Bosse weather this weekend
Sunday 18 October: heavy snow showers, up to -9°C at the summit, feeling as cold as -22°C, summit wind 48 mph gusting 68 mph, 85% chance of rain. Rated Poor.
Grande Bosse summit forecast, next 7 days
| Day | Verdict | High/low | Feels like | Wind/gust mph | Rain or snow |
|---|
| TodayLight snow | Poor | -9°/-11° | -22° | 48/68 | 85% |
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| TomorrowSlight snow showers | Poor | -7°/-10° | -20° | 42/61 | 30% |
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| Tue 20Light snow | Poor | -8°/-11° | -19° | 45/60 | 75% |
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| Wed 21Light snow | Marginal | -11°/-19° | -26° | 27/49 | 83% |
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| Thu 22Overcast | Marginal | -12°/-19° | -25° | 28/39 | 63% |
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| Fri 23A dusting of snow | Marginal | -10°/-15° | -19° | 39/55 | 30% |
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| Sat 24Light snow | Marginal | -15°/-18° | -23° | 34/46 | 34% |
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Grande Bosse 14-day weather forecast: days 8 to 14, less certain
| Day | Verdict | High/low | Feels like | Wind/gust mph | Rain or snow |
|---|
| Sun 25A dusting of snow | Marginal | -8°/-15° | -20° | 38/48 | 31% |
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| Mon 26A dusting of snow | Marginal | -12°/-23° | -27° | 38/56 | 55% |
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| Tue 27A dusting of snow | Marginal | -9°/-23° | -22° | 25/39 | 25% |
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| Wed 28Moderate snow | Marginal | -14°/-25° | -28° | 14/52 | 35% |
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| Thu 29Partly cloudy | Marginal | -9°/-25° | -29° | 11/25 | 22% |
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| Fri 30Overcast | Marginal | -6°/-16° | -21° | 12/15 | 14% |
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| Sat 31Clear sky | Marginal | -7°/-15° | -20° | 23/27 | 14% |
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Routes up
Routes coming soon
Cloud inversion · 7 days
The chance of standing above a sea of cloud on Grande Bosse each morning this week, from overnight temperature, humidity and low cloud below the 4513m summit.
Dark sky · 7 days
How dark the sky gets over Grande Bosse each night this week, from cloud cover, moonlight and local light pollution.
Snow · 7 days
Snow is forecast at the summit on 5 of the next 7 days, about 25.7 cm in all, most on Tuesday (9.6 cm). Lying snow up to 118 cm deep.
Sun today
Sunrise 07:53, sunset 18:42
10h 49m of daylight. Golden hour ends 08:34 and starts 18:00. From the summit you see the sun 07:41 to 18:53.
Nearby summits
Close to Grande Bosse
About Grande Bosse
Grande Bosse is 4,513 m (14,806 ft) high. It is in Alps, France. The nearest summits are Petite Bosse (0.1 km), Rocher de la Tournette (0.5 km) and Pointe Pfann (0.8 km).
How high is Grande Bosse?
Grande Bosse is 4,513 metres high.
Where is Grande Bosse?
Grande Bosse is listed in Alps, France.
Are there routes for Grande Bosse?
Route data is not available for this mountain yet, but the page still shows summit, weather, and location context.
Is it safe to climb Grande Bosse today?
Peakify rates each day on the summit Good, Marginal or Poor from the forecast summit wind, gusts, chance of rain and wind chill. Wind of 40 mph or gusts of 65 mph make it Poor; wind of 25 mph, gusts of 45 mph, a 60% chance of rain or a feels-like temperature of -8°C or below make it Marginal. Today's and tomorrow's ratings are at the top of this page. The rating covers the weather only: also check your route, daylight, kit and experience, and in winter whether you need an ice axe and crampons.
What is the weather on Grande Bosse tomorrow?
Monday 19 October: slight snow showers, up to -7°C at the summit, feeling as cold as -20°C, summit wind 42 mph gusting 61 mph, 30% chance of rain. Rated Poor.
What is the weather on Grande Bosse this weekend?
Sunday 18 October: heavy snow showers, up to -9°C at the summit, feeling as cold as -22°C, summit wind 48 mph gusting 68 mph, 85% chance of rain. Rated Poor.
What weather information is shown for Grande Bosse?
The page includes cached mountain forecast context, snow outlook, dark-sky signals, cloud-inversion information, sunrise, sunset, and summit planning details where available.
Written and kept up to date by the Peakify team. The forecast refreshes every hour; how our forecast works.
