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Tomorrow's Weather Ottawa: Thunderstorms & Warm Temps Near 26°C

The Weather NetworkThe Weather Network's AI & Data Team
Published on May. 25, 2026, 10:00 AM

Ottawa May 26, 2026: Warm morning turns stormy by afternoon with gusty winds and scattered showers expected.

Tomorrow's forecast:

Morning: Clear Skies, Mild 16°C, Gusty Winds Up to 39 km/h

    The day begins with clear skies and a comfortable 16°C temperature. Winds are light to moderate at 17 km/h but gusts can reach up to 39 km/h, making it a breezy start. Rain chances remain very low, allowing for a fresh and pleasant morning.

Activities Recommendations for the morning of May 26, 2026:

  • Dog Walks & Errands: Ideal time for a refreshing walk with your pet or running morning errands without weather disruptions.

  • Cycling: Take advantage of the clear and mild conditions to enjoy Ottawa’s bike paths and group rides.

  • Farmers' Markets: Perfect weather to visit local markets and pick up fresh produce.

Temperatures rising steadily from 11°C early morning to a warm 24°C by early afternoon

(Click above to view interactive map)

Afternoon: Thunderstorms Arrive, Warm 26°C, Winds Gusting 48 km/h

    Thunderstorms are expected to develop by early afternoon with temperatures rising to a warm 26°C. Winds will strengthen, reaching 30 km/h with gusts up to 48 km/h, bringing a blustery feel. There is a 40% chance of rain, with light showers likely around this time.

Activities Recommendations for the afternoon of May 26, 2026:

  • Outdoor Concerts: Be prepared for possible rain during events like the Fit For A King concert at The Bronson.

  • Picnicking: Consider indoor alternatives or quick visits to parks before storms arrive.

  • Walking Tours: Plan shorter tours or schedule them earlier to avoid the afternoon thunderstorms.

Evening: Continued Thunderstorms, Cooler 24°C, Winds Ease Slightly

    Thunderstorms will persist into the evening with temperatures cooling slightly to 24°C. Winds will ease to around 18 km/h but gusts can still reach 42 km/h. Rain chances remain at 40%, with light showers expected to continue, making for a damp and breezy night.

Activities Recommendations for the evening of May 26, 2026:

  • Commute: Allow extra travel time due to wet roads and gusty winds during evening commute.

  • Outdoor Dining: Consider indoor dining options as showers and wind continue.

  • Relaxing Indoors: A cozy evening indoors is ideal with the ongoing thunderstorms outside.

Wind speeds increasing gradually, peaking at 26 km/h with gusts up to 39 km/h around noon

(Click above to view detailed chart)

Packing preparations for tomorrow:

  • Light rain jacket or umbrella for afternoon and evening showers

  • Layered clothing to adjust from mild morning to warm afternoon

  • Windbreaker to protect against gusty winds

  • Sunglasses and sunscreen for moderate to high UV exposure midday

  • Water bottle to stay hydrated during outdoor activities

  • Secure outdoor items to prevent wind damage

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.