How accurate is the forecast for Saint-Quentin-en-Yvelines?

Forecasts are pulled from leading meteorological models and refreshed automatically every 30 minutes. Short-range accuracy (next 24 hours) is typically within 1–2°C and 80–90% for precipitation.

How often is the data updated?

Current conditions and the hourly outlook refresh every 30 minutes; daily forecasts every hour.

What does the air-quality (AQI) value mean?

We display the European AQI on a scale from Good (0–20) to Extremely poor (>100), blending PM2.5, PM10, NO₂ and O₃.

Clima Map

Saint-Quentin-en-Yvelines FR

June 30, 2026 · 8:29 am

19^°

Overcast

Feels like 18°C

Humidity: 67%
Wind: 10 km/h N
Pressure: 1024 hPa
Cloud: 98%

July 4, 2026 · July 4, 2026

Clear sky

31°C · 17°C

Rain: 0 mm · UV: 7.3 · Wind: 8 km/h

Nearby weather

Cities near Saint-Quentin-en-Yvelines

Compare weather conditions in surrounding cities and open any local forecast instantly.

1.3 km Montigny-le-Bretonneux FR View forecast 2.8 km Voisins-le-Bretonneux FR View forecast 3.1 km Bois-d'Arcy FR View forecast 4 km Guyancourt FR View forecast 4.4 km Magny-les-Hameaux FR View forecast 4.7 km Saint-Cyr-l'École FR View forecast 4.9 km Élancourt FR View forecast

Weather notice Forecasts are for general planning. During severe weather, follow official alerts and local authority instructions.