See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:43
Sunrise
19:11
Sunset
Moon
Waning Gibbous
20:53
Moonrise
12:20
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Saint-Jean-le-Vieux.
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Saint-Jean-le-Vieux.
View stargazing scoreWeather in Saint-Jean-le-Vieux today, September 30, 2026
Saint-Jean-le-Vieux looks damp on September 30, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Cloud leads the morning, peaking close to 97% near 11:00. Sunshine has little room until later in the day.
The temperature range runs from about 19°C up to 24°C. Moisture in the air spans 43%-80%, with the highest values around 22:00. A lighter breeze peaks around 14:00 near 4.3 km/h.
Expect persistent cloud later on, with amounts around 100% by 14:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 39.1 km on average, though it can drop toward 31.5 km in thicker cloud or showers. Expect sunrise at 07:43, sunset at 19:11, and 11 hours 28 minutes of sunlight today overall.
In short, treat September 30, 2026 in Saint-Jean-le-Vieux as a damp day: pack covers, watch the wetter hours, and expect a high near 24°C.
Frequently asked questions about weather in Saint-Jean-le-Vieux
How warm does it get in Saint-Jean-le-Vieux?
The warmest month in Saint-Jean-le-Vieux is August, with average high temperatures of 27°C. The average temperature during this period is around 21°C.
How cold does it get in Saint-Jean-le-Vieux?
The coldest month in Saint-Jean-le-Vieux is January, with average low temperatures of 0°C. The average temperature during this period is around 3°C.
What is the wettest time of year in Saint-Jean-le-Vieux?
The wettest month in Saint-Jean-le-Vieux is December, with an average of 179mm of precipitation.
What is the driest time of year in Saint-Jean-le-Vieux?
The driest month in Saint-Jean-le-Vieux is August, with an average of 83mm of precipitation.
Explore more weather forecasts
- Ambérieu-en-Bugey, Auvergne-Rhône-Alpes
- Paris, Île-de-France
- Bourg-en-Bresse, Auvergne-Rhône-Alpes
- Marseille, Provence-Alpes-Côte d'Azur
- Oyonnax, Auvergne-Rhône-Alpes
- Lyon, Auvergne-Rhône-Alpes
- Bellegarde-sur-Valserine, Auvergne-Rhône-Alpes
- Toulouse, Occitanie
- Meyzieu, Auvergne-Rhône-Alpes
- Nice, Provence-Alpes-Côte d'Azur
- Décines-Charpieu, Auvergne-Rhône-Alpes
- Nantes, Pays de la Loire
- Rillieux-la-Pape, Auvergne-Rhône-Alpes
- Marne La Vallée, Île-de-France
- Genas, Auvergne-Rhône-Alpes
- Strasbourg, Grand Est