Edmonton Weather Forecast: Temperatures Climb to 25°C Before Thunderstorms Tonight

Edmonton is moving into a warm but unsettled Sunday, with the forecast calling for temperatures to climb toward 25°C before thunderstorms become possible later tonight. The day is expected to open with mostly clear skies, turn warmer and breezier by midday, and then shift into a storm risk as evening approaches.

For people planning Mother’s Day outings, brunch reservations, walks, errands or evening travel, timing will matter. The most comfortable stretch of the day is likely to come from late morning through the afternoon, when rain chances remain low and temperatures rise well above the cool start.

Early Sunday is expected to feel mild for May. Temperatures should sit near 13°C in the morning, with mostly clear conditions and winds around 22 km/h. The chance of precipitation is expected to stay near 20%, keeping the first part of the day largely dry across the city.

The warm-up should become more noticeable by late morning. Edmonton is forecast to rise from around 10°C early in the day to about 19°C by noon. Winds may also strengthen through that period, increasing from roughly 15 km/h to 26 km/h, with gusts possibly reaching 39 km/h in open areas.

Those gusts could make exposed parks, bridges, trails and roadways feel breezier than expected, but they are not expected to spoil daytime plans. Instead, the main weather story during the afternoon will be the unusual warmth, with temperatures forecast to peak near 25°C under cloudier skies.

Despite the added cloud cover, the afternoon rain risk remains limited at about 20%. That gives Edmonton a useful window for outdoor activities before the evening change arrives. Patios, dog walks, local markets, family gatherings and park visits should have the best conditions before late-day storms begin to build.

Anyone heading out for longer periods should prepare for both warm and unsettled weather. Light clothing may feel right during the afternoon, but a raincoat or umbrella will be worth carrying if plans continue into the evening. Sunscreen, water and comfortable shoes are also sensible choices for the warmer part of the day.

Official forecasts and weather alerts for Edmonton can be checked through the Government of Canada weather service, which remains the most reliable source for watches, warnings and updated local conditions.

The forecast becomes more unsettled after sunset. Thunderstorms are expected to become possible during the evening, with rain chances increasing to around 40%. Current projections suggest about 0.4 mm of rainfall, so the storm threat may not bring large totals everywhere, but even brief thunderstorms can affect travel and outdoor plans.

Evening temperatures are expected to cool to around 20°C, still mild for the season. Winds should ease slightly to near 19 km/h, but the atmosphere may become unstable enough for thunder and scattered showers to develop around the city.

Drivers should be ready for changing road conditions later tonight. A dry and warm afternoon followed by rain can make roads slick, especially during the first round of showers. Visibility may also drop briefly if thunderstorms produce heavier bursts of rain.

Outdoor evening plans should be treated with caution. If thunder is heard, the safest move is to go indoors and avoid open fields, isolated trees, water, metal structures and exposed high ground. Lightning can remain dangerous even when rainfall is light.

Sunday’s forecast shows how quickly spring weather can turn in Alberta. Edmonton may begin the day with clear skies and comfortable temperatures, reach a warm 25°C during the afternoon, and then face thunderstorms by night. That sharp shift is typical of May weather patterns, when daytime heating can help fuel late-day instability.

The best planning approach is simple: use the daytime warmth while conditions stay mostly dry, but do not assume the evening will feel the same. Anyone attending Mother’s Day dinners, outdoor events or late commutes should check radar and alerts before leaving.

Readers following Alberta’s wider weather pattern can also read Swikblog’s related coverage here: Canada Weather Alert: 25 cm Snowstorm Slams Alberta as Temperatures Drop.

For now, Edmonton’s Sunday forecast points to a warm afternoon followed by a more active evening. Temperatures are expected to climb to 25°C before thunderstorms move in tonight, bringing a sharp finish to an otherwise favorable spring day.

Make Swikblog your go-to source on Google for reliable updates, smart insights, and daily trends.