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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Expect a mix of sun and cloud today in Greater Napanee, with the live forecast above showing a high near the seasonal average. A weak cold front may bring a slight chance of afternoon showers, so keep an umbrella handy if you’re out.
What is the forecast for today and tonight?
Daytime temperatures will reach the low 20s Celsius, with light winds from the southwest at 15 to 20 km/h. Tonight, skies become partly cloudy as the temperature drops to around 12°C. No significant precipitation is expected overnight, but patchy fog could develop toward dawn.
Will the weekend be sunny?
Saturday looks mainly sunny with a high near 24°C, ideal for outdoor plans. Sunday brings increasing cloudiness and a 40% chance of late-day rain, with highs staying in the low 20s. The pattern remains unsettled early next week as a low-pressure system approaches from the Great Lakes.
When does the rain start in Greater Napanee?
The best chance of rain arrives Sunday evening, with a 40% probability of showers. Monday may see steadier rain as a low-pressure system moves in. Check the live forecast above for updated timing.
Is there a weather warning for Napanee today?
No warnings are currently in effect for Greater Napanee. Conditions remain calm, though the weekend system could bring a special weather statement. Monitor our warning page for real-time alerts.
How does this compare to seasonal norms?
Today’s high is within 1–2 degrees of the late-June average of 23°C. Overnight lows near 12°C are also typical. No extreme temperatures are expected this week, keeping conditions comfortable for the region.
For broader forecasts, see Canada weather hub or Toronto Weather.