Tomorrow's Weather Ottawa: Thunderstorms, Warm & Windy

Tomorrow's forecast:

Morning Thunderstorms with Windy Conditions and 20°C

    Today’s weather sets the stage with steady warming, but tomorrow morning kicks off with thunderstorms and a temperature near 20°C. Winds will be noticeable, gusting up to 46 km/h, accompanied by moderate rain around 1.9 mm. The wet and windy start will require attention for early activities.

Activities Recommendations for the morning of May 19, 2026:

• Commute: Prepare for wet roads and gusty winds during your morning travel.

• Dog Walks & Errands: Consider timing walks to avoid heavier rain bursts and strong gusts.

• Outdoor Photography: Capture dramatic stormy skies but stay safe and dry.

Temperature rising steadily to a warm 25°C by early afternoon

(Click above to view interactive map)

Afternoon Thunderstorms Persist with Heat and Strong Winds

    The afternoon will see thunderstorms continuing with temperatures climbing to a warm 28°C, feeling like 35°C due to humidity. Winds will strengthen, reaching speeds of 23 km/h with gusts up to 45 km/h. Rainfall will ease slightly but remain likely, making it a dynamic and warm afternoon.

Activities Recommendations for the afternoon of May 19, 2026:

• Cycling & Outdoor Events: Be cautious of sudden showers and gusts during outdoor activities.

• Picnicking: Opt for covered or sheltered spots to stay comfortable amid intermittent rain.

• Hydration: Keep water handy to manage the warm, humid conditions.

Evening Thunderstorms with Mild Temperatures and Light Winds

    Thunderstorms will continue into the evening with temperatures cooling to around 24°C, feeling like 31°C. Winds will ease to lighter speeds near 20 km/h but gusts up to 42 km/h remain possible. Rainfall will persist, so expect a wet and warm night.

Activities Recommendations for the evening of May 19, 2026:

• Walking Tours: Dress for wet weather and enjoy the atmospheric stormy evening safely.

• Outdoor Dining: Choose covered patios to stay dry while dining outdoors.

• Relaxation: Wind down indoors with windows slightly open to enjoy fresh, storm-cooled air.

Light rain showers expected mainly in early morning with max 0.6mm precipitation

(Click above to view detailed chart)

Packing preparations for tomorrow:

• Waterproof jacket or umbrella for frequent rain showers

• Light, breathable clothing to handle warm, humid conditions

• Windbreaker to protect against gusty winds

• Water bottle to stay hydrated throughout the day

• Protective footwear suitable for wet surfaces

• Portable phone charger to stay connected during outdoor activities

For active alerts in your area, visit your Alerts page. This article was generated with the use of OpenAI and The Weather Network's forecast data. The article was reviewed by the editorial team for accuracy and clarity. For more details visit our AI Code of Ethics. For feedback, visit our survey.