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Weather Forecast heure par heure Grenoble (38000)

Last update: Tuesday, September 29, 2026 at 5:00 AM
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Humidity
                                                                                                                                                                                                                                                                                                                                                                       
80 %82 %79 %78 %72 %66 %57 %50 %48 %47 %44 %45 %47 %49 %52 %57 %57 %46 %50 %51 %51 %52 %55 %67 %67 %69 %69 %62 %55 %54 %51 %51 %48 %49 %52 %56 %62 %66 %71 %73 %77 %79 %79 %80 %85 %87 %95 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %95 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %97 %97 %89 %87 %81 %80 %81 %82 %86 %94 %100 %100 %100 %100 %100 %100 %100 %99 %98 %99 %100 %100 %100 %98 %89 %84 %76 %77 %76 %77 %78 %78 %81 %87 %93 %96 %95 %95 %97 %99 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %99 %94 %90 %80 %83 %91 %100 %100 %100 %100 %100 %92 %91 %90 %91 %95 %99 %97 %94 %90 %83 %75 %74 %67 %64 %58 %62 %68 %74 %85 %95 %100 %100 %100 %100 %93 %90 %89 %92 %94 %98 %95 %91 %87 %77 %68 %63 %56 %52 %47 %50 %55 %64 %76 %93 %100 %100 %100 %98 %92 %90 %90 %92 %95 %97 %97 %95 %97 %97 %99 %99 %100 %100 %97 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %94 %89 %86 %81 %81 %78 %77 %76 %73 %72 %72 %74 %73 %76 %69 %67 %65 %66 %68 %71 %70 %72 %72 %77 %81 %89 %87 %83 %79 %71 %64 %64 %59 %58 %53 %56 %60 %63 %66 %71 %76 %78 %79 %81 %79 %78 %78 %78 %82 %87 %84 %79 %75 %70 %67 %69 %68 %68 %63 %64 %65 %64 %63 %65 %70 %73 %74 %77 %77 %78 %79 %80 %85 %91 %90 %85 %81 %79 %75 %87 %96 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %93 %93 %97 %100 %100 %94 %90 %83 %76 %76 %70 %70 %68 %75 %87 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %100 %

*: these forecasts are based on raw outputs from weather models, unlike the forecasts provided by default on the homepage and the 15-day table, which are refined by our meteorologists (a service usually paid for on the internet)

8-day weather forecast

Ces prévisions météo heure par heure dites "automatiques" sont issues d'une sortie brute des calculateurs, sans être retravaillées et expertisées par nos prévisionnistes (dernier scénario du modèle américain GFS dont les données sont réactualisées toutes les 6h). L'utilisation de ces prévisions météo est intéressante si vous avez besoin de consulter une commune située en-dehors des zones de météo expertisée que nous gérons (Londres, Bruxelles, Lille, Rouen, Paris, Metz, Genève, Lyon, Annecy, Chambéry, Grenoble, Chamrousse, Nice, Marseille, Montpellier, Toulouse, Biarritz, Bordeaux, Nantes). Attention car ces prévisions doivent être corrigées en zones montagneuses et littorales car il s'agit d'une moyenne sur un carré de 25 km de coté. D'autre part, gardez un certain recul sur la précision temporelle au-delà de deux ou trois jours car ces prévisions peuvent sensiblement évoluer, notamment lorsque le temps est perturbé.

*Nuages =  prévision de pourcentage de la couverture nuageuse au niveau bas, moyen et élevé.

*Pluie = cumul prévu durant les trois précédentes heures. 

 

Today's weather bulletin

Last updated at: Monday, September 28, 2026 at 7:08 PM

chargement…

Puissante remontée chaude et un épisode cévenol

Malgré une tentative de dégradation orageuse ce lundi sur les régions du nord-ouest, liée à une très brève incursion d’air plus frais en provenance des îles Britanniques, le courant reste largement orienté au sud et va même se renforcer dans les prochaines heures. Une puissante dépression est en effet en trai…
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