Weather forecast
Weather forecast
Issued Saturday 05 July 2025 alle 11:41
Weather forecaster Luca Stefanoli
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Overall situation
Pressure measured in Aosta at 7 am: 1018 hPa
Le Alpi sono al margine tra una circolazione depressionaria che lambisce l'Europa del nord e un'alta pressione che dall'Atlantico si estende fin sul Mediterraneo. Ne conseguono condizioni bariche piuttosto livellate che convogliano aria a tratti umida che, legata alle alte temperature e indici di instabilità considerevoli, favorisce la possibilità di locali rovesci di calore, soprattutto sui rilievi. Nella seconda parte di domani, tali precipitazioni si intensificheranno e assumeranno anche carattere temporalesco per la discesa della prima struttura citata, associata alla quale un fronte freddo raggiungerà le Alpi, favorendo altresì un brusco calo termico. Le condizioni tenderanno ad essere più stabili da martedì, quando anche le temperature recupereranno progressivamente qualche grado.
Saturday 05 July 2025
Morning
Afternoon
Partly sunny with increasing cumulus activity from the second part of the day, associated with some local showers, especially in the mountains and the SE sector, at times also thundery.
Temperatures: slightly decreasing.
Pressure: strongly decreasing.
Winds: 3000 m moderate from W; light and variable in the valleys in the morning with SE breezes, becoming moderate from midday.
Warnings: possible showers.
Reliability
- Freezing level: 4300m / 4100m
- Temp 1500 m: 16°C » 22°C
- Temp 3000 m: 7°C » 9°C
| Temperature | Max |
|---|---|
| Mountain | |
| Valleys |
| Location | Min | Max |
|---|---|---|
| Aosta | 19 °C | 30 °C |
| Cogne | 12 °C | 24 °C |
| Courmayeur | 16 °C | 26 °C |
| Donnas | 20 °C | 27 °C |
| Gressoney-Saint-Jean | 14 °C | 22 °C |
| Breuil-Cervinia | 12 °C | 19 °C |
| Solar ultraviolet radiation * | |
|---|---|
| Mountain | Very high |
| Valleys | High |
Sunday 06 July 2025
Morning
Afternoon
Some sunny spells in the early morning, followed by a rapid increase cloudiness with a local showers spreading during the second part of the day and turning thundery from light to locally strong.
Temperatures: sharply decreasing.
Pressure: strongly decreasing.
Winds: 3000 m moderate W, strengthening to strong and veering NW in the afternoon; light to moderate from W in the valleys.
Warnings: showers and thunder.
Reliability
- Freezing level: 4000m » 3600m
- Temp 1500 m: 13°C » 17°C
- Temp 3000 m: 5°C » 6°C
| Temperature | Min | Max |
|---|---|---|
| Mountain | ||
| Valleys |
| Location | Min | Max |
|---|---|---|
| Aosta | 17 °C | 26 °C |
| Cogne | 11 °C | 19 °C |
| Courmayeur | 14 °C | 20 °C |
| Donnas | 20 °C | 26 °C |
| Gressoney-Saint-Jean | 10 °C | 18 °C |
| Breuil-Cervinia | 8 °C | 14 °C |
| Solar ultraviolet radiation * | |
|---|---|
| Mountain | Moderate |
| Valleys | Moderate |
Monday 07 July 2025
Morning
Afternoon
Initially irregular cloudiness with some local residual showers, then increasingly wider sunny spells with passing mid- to high-level clouds.
Temperatures: sharply decreasing, especially at higher altitudes.
Pressure: strongly decreasing.
Winds: 3000 m moderate to strong NW, veering W around midday; NW foehn from light to moderate in the valleys.
Reliability
- Freezing level: 3600m » 3000m
| Temperature | Min | Max |
|---|---|---|
| Mountain | ||
| Valleys |
| Location | Min | Max |
|---|---|---|
| Aosta | 15 °C | 25 °C |
| Cogne | 7 °C | 17 °C |
| Courmayeur | 10 °C | 17 °C |
| Donnas | 18 °C | 27 °C |
| Gressoney-Saint-Jean | 9 °C | 20 °C |
| Breuil-Cervinia | 6 °C | 14 °C |
| Solar ultraviolet radiation * | |
|---|---|
| Mountain | Very high |
| Valleys | Very high |
Next days
Tue 08 Jul 2025
Wed 09 Jul 2025
Thu 10 Jul 2025
Fri 11 Jul 2025
Reliability
Fairly sunny with a some isolated showers possible over the mountains, mainly in the afternoon, and temperatures gradually and slightly rising.
* The solar ultraviolet radiation index is elaborated, starting from the weather forecast data, by Arpa Valle d'Aosta - Learn more »