Weather forecast

Issued Thursday 29 October 2026 alle 12:09

Weather forecaster Silvia Monte

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Overall situation

Today, a high-pressure system over central-western Europe, expanding toward England, brings stable weather over the Aosta Valley. Starting tomorrow, forecast reliability will gradually decrease due to the westward movement of a low-pressure system approaching from the east, which could cause isolated low-pressure systems over central Europe in the coming days. This could allow cooler, more humid air to move into the Aosta Valley, leading to increased cloud cover, though conditions are expected to remain mostly stable at least through Wednesday.

Friday 30 October 2026

Night (from 00 to 06)

Morning (from 06 to 12)

Afternoon (from 12 to 18)

Evening (from 18 to 24)

Forecast
In the morning, cloudy for medium-low clouds in the valleys, especially in the E, with possible local and very light drizzle until dawn; a few cloudy in the mountains. From the late morning, partial dissipation of clouds, especially in the central and W parts of the bottom valley, with sky ranging from irregularly cloudy to cloudy in the valleys and mid-mountain areas, and mostly clear in high mountain.

Temperatures
falliing, strongly in maximum values, except for minimum values in the bottom valley, stable or locally rising.

Winds
3000 m from N light until mid-morning, then shifting to NE and gradually weakening; in the valleys, very light and variable until late morning, then light from E-SE.

Reliability

Freezing level: 2700m / 2400m
Temp 1500 m: 3°C » 7°C
Temp 3000 m: -2°C » -4°C

Temperature	Min	Max
Mountain
Valleys

Solar ultraviolet radiation *
Mountain	Moderate
Valleys	Low

Location	Min	Max
Aosta	6 °C	14 °C
Cogne	1 °C	7 °C
Courmayeur	2 °C	9 °C
Donnas	10 °C	14 °C
Gressoney-S-J	2 °C	8 °C
Breuil-Cervinia	-2 °C	5 °C

Saturday 31 October 2026

Morning (from 00 to 12)

Afternoon (from 12 to 24)

Forecast
Low clouds or fogs in the valleys until morning, gradually dissipating. Later, a few or partly cloudy; clear in the evening.

Temperatures
in mountains mnimum slightly falling and maximum strongly rising; almost stationary in the valleys.

Winds
3000 m from NE light, locally moderate in the E, intensifying late in the evening; in the valleys, very light and variable, except for a few light afternoon breezes in the SE valley.

Reliability

Freezing level: 2200m » 3000m
Temp 1500 m: 3°C » 8°C
Temp 3000 m: -3°C » 0°C

Temperature	Min	Max
Mountain
Valleys

Solar ultraviolet radiation *
Mountain	Moderate
Valleys	Low

Location	Min	Max
Aosta	7 °C	15 °C
Cogne	2 °C	10 °C
Courmayeur	3 °C	11 °C
Donnas	9 °C	15 °C
Gressoney-S-J	2 °C	11 °C
Breuil-Cervinia	-2 °C	8 °C

Sunday 01 November 2026

Morning (from 00 to 12)

Afternoon (from 12 to 24)

Reliability

Freezing level: 3100m » 2000m

Temperature	Min	Max
Mountain
Valleys

Solar ultraviolet radiation *
Mountain	Moderate
Valleys	Low

Forecast
Until early morning, low clouds in the east; clear elsewhere. Later, irregularly cloudy in the central and E valleys; clear or a few cloudy elsewhere.

Temperatures
minimum rising, strongly in mountains; maximum falling in mountains; a general drop is likely to happen in the eastern area.

Winds
3000 m light to moderate from N-NE, intensifying locally, then weakening in the evening; in the valleys, very light and variable until mid-morning, then light from the E-SE.

Next days

MON 02 NOV 2026

TUE 03 NOV 2026

WED 04 NOV 2026

Reliability

Some fog or low clouds until dawn on Monday, followed by sunny conditions until midday on Tuesday. Then, cloud cover will increase rapidly, with irregularly cloudy or cloudy skies and a chance of light precipitation between the night and the early Wednesday morning.

* The solar ultraviolet radiation index is elaborated, starting from the weather forecast data, by Arpa Valle d'Aosta - Learn more »

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