14 day weather forecast

Grenoble weather August 2026 — 14 day forecast · France

27°

mainly clear · feels like 29°

Updated at
  • Live from Open-Meteo
  • Refreshed several times a day
  • 14 days ahead
  • No tracking · free
Warmest day
Saturday 5 Sept
37°C
highest maximum
Wettest day
Friday 11 Sept
10.5 mm
15% chance
Most sunshine
Saturday 29 Aug
13 hours
of sunshine
Trend
14 days
Warmer
From ~28° to ~34°

The next 14 days

swipe →
Avg max, 3 days
28.7°C
Coldest night
16°C
Most sunshine
13.0 h
Wind from
the north

Overview table · August 2026

Grenoble 14 day forecast, day by day

The table below shows the full 14 day weather forecast for Grenoble (France): the maximum and minimum temperature, rainfall in millimetres, the chance of rain, humidity, hours of sunshine and the UV index per day. Across the next two weeks the maximum temperature in Grenoble averages around 31°C and the minimum around 19°C, with roughly 12 mm of rain in total, 12 dry days and about 176 hours of sunshine.

Last updated:

14 day weather forecast for Grenoble (France) per day: temperature, rainfall, chance of rain, humidity, sunshine hours and UV index. Updated in August 2026.
DayWeatherMaxMinRainChanceHumiditySunUV
Saturday29 AugMostly sunny28°C16°C0 mm0%58%13 h6high
Sunday30 AugMostly sunny31°C17°C0 mm3%59%12.9 h6high
Monday31 AugMostly sunny27°C20°C0 mm13%56%12.5 h6high
Tuesday1 SeptCloudy27°C16°C0 mm7%57%10.6 h6high
Wednesday2 SeptCloudy28°C17°C0 mm8%50%12.9 h6high
Thursday3 SeptMostly sunny29°C17°C0 mm0%51%12.9 h6high
Friday4 SeptMostly sunny29°C20°C0 mm3%63%12.9 h6high
Saturday5 SeptMostly sunny37°C20°C0 mm4%48%12.9 h6high
Sunday6 SeptMostly sunny35°C20°C0 mm18%51%12.8 h6high
Monday7 SeptMostly sunny35°C20°C0 mm18%52%12.8 h6high
Tuesday8 SeptSunny35°C22°C0 mm12%44%12.7 h4moderate
Wednesday9 SeptSunny34°C21°C0 mm8%48%12.7 h5moderate
Thursday10 SeptLight rain36°C21°C1.5 mm15%51%12.6 h6high
Friday11 SeptShowers27°C19°C10.5 mm15%85%11.6 h6high

The first three to five days of the forecast for Grenoble are the most reliable; from day seven onwards it is an indicative trend. Click a day in the overview above for hourly detail. Source: Open-Meteo (Met Office, DWD, ECMWF).

Background & outlook

The weather in Grenoble

Current conditions and the 14 day forecast

Grenoble lies in France, an area with a maritime climate: mild winters, cool summers, changeable skies and rain spread across the whole year. That is exactly why a two-week outlook is useful here — it shows the pattern rather than one snapshot.

What is the weather like in Grenoble right now?

It is currently 27°C in Grenoble with mainly clear. It feels like 29°C, humidity is 33% and the wind is WNW 2 km/h.

Today (Saturday) reaches a maximum of 28°C and a minimum of 16°C, with 0 mm of rain and 13 hours of sunshine. Sunrise is at 06:55 and sunset at 20:20.

Grenoble weather tomorrow

Tomorrow (Sunday) the maximum temperature in Grenoble is 31°C and the minimum 17°C. Around 0 mm of rain is expected with 12.9 hours of sunshine, and the chance of rain is 3%. The data is refreshed several times a day through Open-Meteo.

Grenoble weather this week and next week

Over the coming week the average maximum temperature in Grenoble sits around 28°C and the average minimum around 18°C. Roughly 0 mm of rain is expected, spread across 0 days, with 5 largely sunny days.

The warmest day in the 14 day forecast for Grenoble is Saturday 5 Sept at 37°C. The coldest night falls on Saturday 29 Aug at 16°C. Click any day for hourly detail.

Rain, sunshine and UV in Grenoble

A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Grenoble is 6 — high enough to warrant sun protection in the middle of the day.

How reliable is a 14 day forecast?

The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.

Forecast for Grenoble last updated: 29 August 2026 at 14:25. See also all France forecasts and the European weather map.

Frequently asked questions

Questions about the weather in Grenoble

What is the weather like in Grenoble in August 2026?

The forecast at the top of this page shows the current temperature in Grenoble plus the maximum and minimum for each of the next 14 days, with rainfall, chance of rain, sunshine hours and UV index. It is refreshed several times a day.

How accurate is the 14 day forecast for Grenoble?

The first three to five days for Grenoble are highly reliable. From day six onwards, read the forecast as a trend: it shows whether it turns warmer, cooler, wetter or drier rather than an exact value for that day.

Will it rain in Grenoble this week?

The rainfall chart on this page gives the expected millimetres per day for Grenoble, and each day card shows the chance of rain as a percentage. Below 20% with several hours of sunshine is a genuinely dry day.

How warm does it get in Grenoble over the next two weeks?

The temperature chart shows the maximum and minimum for every one of the next 14 days in Grenoble. The overview table underneath repeats the same figures day by day, together with the average across the fortnight.

Can I see the weather in Grenoble hour by hour?

Yes. The hourly chart covers the next 48 hours in Grenoble with temperature, feels-like temperature and chance of rain. Clicking any of the 14 days opens a panel with night, morning, afternoon and evening detail.

Where does the Grenoble forecast come from?

The data for Grenoble (France, France) comes from Open-Meteo, which combines national weather models such as those of the Met Office, DWD, Météo-France and ECMWF and recomputes them several times a day.

What does the UV index for Grenoble mean?

The UV index runs from 0 to 11+. Up to 2 is low, 3 to 5 moderate, 6 to 7 high and 8 or more very high. From 6 upwards it is worth using sun protection in the middle of the day, even when it does not feel especially hot.

Is the Grenoble weather forecast free?

Yes. The full 14 day forecast for Grenoble is free, needs no account and carries no adverts inside the charts.