Mont Blanc Weather Forecast
Mont Blanc weather: 19°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Mont Blanc is a mountain in France. Mont Blanc is a mountain known as the highest summit in the Alps. It sits at 15.774 ft above sea level.
Right now it is 19°F (-7°C) in Mont Blanc with mainly clear. It feels like 5°F. Today runs from 11°F to 23°F. Chance of precipitation is 3%. Sightseeing conditions score 6.4/10 - fair - plan around the weather.
The best time to visit Mont Blanc is June, July and August. The climate is polar. January, November and December tend to be the least comfortable months. August is the warmest month with average highs near 30°F, while January is the coldest with lows near -17°F.
The closest major airport is Milan Malpensa Airport (MXP), about 91 mi away. Nearby highlights include Gran Paradiso National Park, Matterhorn, Matterhorn and Lake Geneva.
In plain terms. Today is cooler than average for August. The forecast high of 23°F is 7.4°F below the 30°F typical for this month. The best window to be outside is roughly 2 PM to 5 PM, when temperature, rain chance and wind line up best. photography is the strongest bet in Mont Blanc today at 9.8/10. Gusts to 64 mph will push high-sided vehicles on exposed roads and bridges. Overnight lows near 11°F mean ice is possible on bridges before dawn.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Mont Blanc
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Mont Blanc right now
Wear sunglasses and use SPF 30+ if you are outside for long.
Source: Open-Meteo. Updated 10:36 AM, Aug 22 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Mont Blanc
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sat, Aug 22 | ☁️ Overcast | 23° / 11° | 3% | 27 mph | 7 |
| Sun, Aug 23 | ☁️ Overcast | 25° / 20° | 18% | 21 mph | 7 |
| Mon, Aug 24 | ⛈️ Thunderstorm | 34° / 21° | 87% · 0,4 in | 13 mph | 7 |
| Tue, Aug 25 | 🌦️ Light showers | 30° / 22° | 75% · 0,1 in | 9 mph | 7 |
| Wed, Aug 26 | ⛅ Partly cloudy | 39° / 23° | 10% | 10 mph | 7 |
| Thu, Aug 27 | ⛈️ Thunderstorm | 27° / 21° | 68% · 0,5 in | 9 mph | 5 |
| Fri, Aug 28 | 🌦️ Light showers | 20° / 11° | 83% · 0,2 in | 11 mph | 4 |
| Sat, Aug 29 | 🌨️ Light snow | 16° / 10° | 67% · 0,3 in | 10 mph | 5 |
| Sun, Aug 30 | ☁️ Overcast | 23° / 6° | 20% | 3 mph | 7 |
| Mon, Aug 31 | ☀️ Clear sky | 28° / 10° | 31% | 3 mph | 7 |
| Tue, Sep 1 | 🌦️ Light drizzle | 24° / 15° | 53% · 0,1 in | 3 mph | 6 |
| Wed, Sep 2 | 🌦️ Drizzle | 23° / 11° | 42% · 0,2 in | 4 mph | 6 |
| Thu, Sep 3 | 🌦️ Light drizzle | 20° / 9° | 33% · 0,1 in | 2 mph | 6 |
| Fri, Sep 4 | 🌦️ Light drizzle | 24° / 6° | 49% · 0,0 in | 3 mph | 7 |
| Sat, Sep 5 | 🌦️ Light drizzle | 26° / 10° | — · 0,0 in | 3 mph | 6 |
| Sun, Sep 6 | 🌦️ Light showers | 14° / 11° | — · 0,4 in | 9 mph | 1 |
Climate in Mont Blanc month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | -3° | -17° | 7,6 in | ★☆☆☆☆ |
| February | 1° | -13° | 5,9 in | ★☆☆☆☆ |
| March | 2° | -13° | 4,2 in | ★★☆☆☆ |
| April | 9° | -5° | 3,9 in | ★★☆☆☆ |
| May | 12° | -1° | 4,6 in | ★★☆☆☆ |
| June | 24° | 8° | 3,2 in | ★★☆☆☆ |
| July | 28° | 12° | 2,8 in | ★★☆☆☆ |
| August | 30° | 13° | 2,2 in | ★★☆☆☆ |
| September | 21° | 6° | 5,3 in | ★☆☆☆☆ |
| October | 15° | 1° | 7,3 in | ★☆☆☆☆ |
| November | 3° | -12° | 9,3 in | ★☆☆☆☆ |
| December | 1° | -13° | 7,3 in | ★☆☆☆☆ |
Climate type: Polar. Source: Open-Meteo archive (ERA5).
Weather map for Mont Blanc
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Mont Blanc
Pollen today
Pollen is modelled for Europe only; other regions show no values.
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Mont Blanc
Go in June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, November and December - expect the least comfortable mix of heat, cold or rain.
Explore Mont Blanc
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Mont Blanc?
Mont Blanc is a mountain in France. Its coordinates are 45.8326, 6.8652. It lies in Europe.
What is the weather like in Mont Blanc right now?
It is currently 19°F (-7°C) with mainly clear. Humidity is 11% and wind is 19 mph.
When is the best time to visit Mont Blanc?
June, July and August offer the most comfortable conditions in Mont Blanc, which has a polar climate. January, November and December are usually the hardest months for outdoor plans.
What time zone is Mont Blanc in?
Mont Blanc observes Europe/Rome (UTC+02:00). The local time is 10:36 AM.
What is the nearest airport to Mont Blanc?
The closest airports are Milan Malpensa Airport (MXP), 91 mi away, Zurich Airport (ZRH), 138 mi away and Venice Marco Polo Airport (VCE), 266 mi away.
What are the top things to do in Mont Blanc?
Popular options include Gran Paradiso National Park, Matterhorn, Matterhorn, Lake Geneva, Jungfrau and Jungfraujoch.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (mountains) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 22, 2026 at 10:36 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
