Chamonix Megeve St Gervais Les Contamines Meribel Flaine Les Carroz Samoens Morillon Phone: 01233 800 811 Email:

St Gervais, Megeve, Chamonix Weather & Webcam

Detailed 3 day mountain weather forecast for the entire Mt Blanc valley area

Weather and Webcam (1800m) Updated daily.

megeve and st gervais webcam

MONDAY APRIL 8, 2024 AT 10:30 A.M.



On the one hand, low-pressure system “Kathleen”, 970 hpa NW of the Faroe Islands, shifting towards the Arctic Ocean as it fills in, leading to a satellite minimum of 990 from offshore SW of Ireland to immediately SW of Scandinavia, where it will be Tuesday evening. – On the other hand, a weak anticyclone, 1017-1018 from N of the Balkans to N of Libya, associated with an upper ridge of Saharan origin. – Between the two, a prevailing SW flow over the Alpine arc, where the pressure field [ Chamonix, 1013 – Sion, 1015 – Innsbruck, 1017 ] continues to weaken from the W, as it approaches the trough associated with the Irish minimum, but is still bringing in warm, very dry, dust-laden air on Monday, which falls downwind of the relief along the northern slopes. – Degradation and cooling overnight and on Tuesday (snow around 1400-1500 m in the afternoon), as the disturbance associated with the above-mentioned satellite minimum passes through.


Thick high-level veils – föhn driving dust down into the valley – gale force winds in the mountains

Cloud cover: cloudy skies, very dusty, almost blotting out the sun at times – in the afternoon, thicker cirrus clouds at high altitudes, heralding the disturbance expected overnight – sunshine: 50%.

No precipitation

Winds according to altitude

in the valleys: variable, light to moderate this morning – föhn gusts locally quite strong this afternoon

mid-mountain: moderate SW -> moderate to strong – locally strong this evening in the open glacial valleys of the left bank

high mountains: strong SW -> gale force winds this evening

Valley temperatures :

min, +12°C

max, +23°C

Altitude of isotherms :

0°C, 3500 -> 3700 -> 3300 m

-10°C, 5100 -> 5200 -> 4900 m


Degradation/cooling – föhn still locally strong at first – snowy storm in the mountains

Cloudiness : overcast skies, ceilings around 2800 m at first, lowering towards 1600 – iso 0°C falling sharply towards 2600 m

No precipitation for the valley – snowstorms overflowing the border ridge in the high massifs

Wind aloft: SW gale -> locally strong gale – locally strong föhn in the valley early in the night, easing off

Minimum valley temperature: +6°C


Disturbed – cold – heavy precipitation at times, snow in upper valley – strong gale in mountains

Cloudiness: overcast – ceiling dropping towards 1300 m – sunshine: 0%.

Continuous precipitation, temporarily quite heavy in the morning – becoming showers in the afternoon – rain-snow limit around 1200 m at its lowest – possible snowfall around 1800 m: 35-50 cm, worked by the wind

Wind aloft: SW strong gale -> S moderate to strong

Valley temperatures :

min, +4°C

max, +6°C


Unstable and cold sleet – flakes in the valley at dawn – breezes moving in from the E with clear spells in the afternoon

Cloudiness: overcast to very cloudy in the morning, ceiling around 1300 m – fleeting sunny spells in the afternoon – sunshine: 20%.

isolated showers still possible early morning – rain-snow limit around 1200-1300 m – dry in the afternoon

Wind aloft: moderate SE -> E

Valley temperatures: stationary or falling slightly


THURSDAY: probably quite sunny in a easing NE flow – almost freezing cold at dawn – markedly milder in the afternoon (≥ 15°C)

FRIDAY: uncertain – moderate to strong breezy flow, but ensuring sunny weather, cool in the morning and warm in the afternoon

SATURDAY: uncertain – fine weather likely – warm in the afternoon.

Forecast reliability: fairly good until Wednesday.

Live webcam is located at 1800m of altitude at the top of mt d’arbois in St Gervais / Megeve. The weather forecast applies to all mountain areas in the Mt Blanc valley; Chamonix skiing, Megeve Skiing, and St Gervais Skiing.

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