How accurate is the forecast for Yonge-St.Clair?

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.

ClimaMap

Yonge-St.Clair CA

May 11, 2026 · 12:34 am

9^°

Clear sky

Feels like 5°C

Humidity: 36%
Wind: 11 km/h NNW
Pressure: 1023 hPa
Cloud: 0%

Air quality

Fair

PM2.5: 8.3 µg/m³
PM10: 8.4 µg/m³
O₃: 56 µg/m³
NO₂: 17.7 µg/m³
SO₂: 3.8 µg/m³
CO: 172 µg/m³

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