Temperatures will be above seasonal across southern Ontario as the new week begins. Rising humidity will add to the summer-like conditions and it could feel like the upper 30s in many regions. Despite the balmy conditions, there is the chance that there could be unsettled weather this week with occasional showers and thunderstorms. Details and timing, below.
- Thunderstorm risk in northern Ontario on Monday
- Summer-like conditions as temperatures and humidity rise
- Keep on top of active weather ALERTS here.
MONDAY: HUMIDITY AND TEMPERATURES RISE
Temperatures will be well above seasonal on Monday as the humidity climbs. Daytime highs in the southwest will approach the 30-degree mark, while further east and north across the GTA they will sit in the mid-20s. The humidity will make it feel like low-to-upper 30s across the south.
There is a risk for thunderstorms in northern Ontario on Monday. The storms that occur are expected to be non-severe in nature with heavy rain, strong winds and small hail.
LOOK AHEAD: SUMMER-LIKE WARMTH WITH HUMIDITY, STORM RISK
Summer-like weather will dominate the region until the end of the week, though cooler for lakeshore areas, with widespread mid and upper 20s for areas away from the cooling influence of the Great Lakes. The weather will become very humid across southern Ontario for several days, with occasional showers and thunderstorms.
“We’ve got heat and humidity that’s going to be building in and areas could actually be feeling like the upper 30s, close to 40,” says Weather Network meteorologist Kelly Sonnenburg.
A strong cold front will cross the region late in the week with a period of rain and thunderstorms, some could be strong, followed by cooler weather for the final weekend of May and into the first week of June.
Check back as we continue to monitor the forecast.