Thunderstorms and heavy rain possible for southern Ontario today

With cooler fall-like temperatures and cloudy skies settling in, there is a chance of thunderstorms and heavy rain today and into tomorrow across southern Ontario.

Today’s 15 C temperatures and cloudy conditions could bring isolated lightning strikes and showers in parts of Ontario. However, Environment Canada has not provided specific locations and the expected rainfall amounts remain uncertain.

⛈️ Thunderstorm Outlook for today 👇

📍Location: Portions of southern ON
⚠️ Impacts: Isolated lightning strikes
⬇️ Confidence: Low
ℹ️ Description: There is a low chance of isolated thunderstorms this afternoon & evening#ONStorm #ONwx pic.twitter.com/niAVeSnbHU

— ECCC Weather Ontario (@ECCCWeatherON) September 7, 2024

Those in northeastern Ontario or travelling there for the weekend may encounter wet snow tonight.

Rain & showers ☔💧(with a risk of thunderstorms ⛈️ for some areas) will continue today, tonight & Sunday for parts of northeastern & southern ON!

Some wet snow ❄️ might sneak into parts of northeastern ON tonight.

Local forecast 🔗 https://t.co/MDFZbjCcG0#ONStorm #ONwx pic.twitter.com/pbAd5JjgZ9

— ECCC Weather Ontario (@ECCCWeatherON) September 7, 2024

By Sunday morning, meteorologists anticipate some patchy frost as temperatures dip near freezing. Residents are advised to cover vulnerable plants, particularly in frost-prone areas.

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A ⚠️ Frost Advisory ⚠️ has been issued for parts of northern ON!

🥶 Patchy frost is expected early Sunday morning with temperatures near the freezing mark.

ℹ️ Cover up plants, especially those in frost-prone areas.

🔗 https://t.co/3kZH3P7OCU#ONwx #coveryourplants 🌱 pic.twitter.com/f1D5Ky7yV7

— ECCC Weather Ontario (@ECCCWeatherON) September 7, 2024

Individuals are asked to continue to monitor alerts and forecasts issued by Environment Canada here.