Wednesday Morning’s Weather Briefing — June 17, 2026
Good Wednesday morning! Here are today’s highlights:
Rain and showers will continue across much of eastern, northeastern, central and the GNP today
The weather improves slowly west and south on the Island
Rain and showers continue through much of Labrador.
Temps remain seasonably cool for the time of year
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If you're on the Avalon or anywhere across central Newfoundland this morning, you're waking up to another dreary start. Rain, drizzle, fog and low cloud have settled in as a low-pressure system tracks through the Cabot Strait and pulls a cool easterly flow across much of the Island.
The biggest weather story overnight was undoubtedly the Wreckhouse. Winds through the notorious gap in the Long Range Mountains gusted as high as 120 km/h near Channel–Port aux Basques. Those winds will gradually ease through the morning as the low pulls away and the pressure gradient relaxes, so travel conditions along the TCH should improve considerably by midday in that area.
For eastern Newfoundland, including the Avalon, Bonavista Bay and Clarenville areas, today is largely a rainy/showers day. Most areas will pick up 10 to 15 mm of rain, with amounts closer to 20 mm possible around Bonavista and Clarenville. East winds will continue gusting to 40 km/h, and there's even the risk of an isolated thunderstorm this afternoon that could boost rainfall totals locally. Temperatures won't have much ambition either, generally hovering near 7°C, although some inland parts of the southern and western Avalon may sneak closer to 10°C. The Burin Peninsula should see improving conditions first, with rain gradually tapering to showers and drizzle before ending later today.
Across central Newfoundland, from Gander through Grand Falls-Windsor and along the Northeast Coast, it's another cool and damp day. Rain continues through much of the morning with totals in the 10 to 20 mm range. Fog should begin lifting away from inland areas around midday, although coastal locations may stay socked in longer. Temperatures will struggle through the upper single digits, and areas of drizzle and showers will linger into tonight.
Meanwhile, the west coast is already turning the corner. While there may be a few leftover showers and patches of fog this morning, conditions will steadily improve through the afternoon. Corner Brook should climb to around 12°C, with warmer temperatures inland through the Humber Valley. The higher terrain of the Long Range Mountains will likely stay cloudier and cooler. The best part? Thursday looks even better, with highs approaching 19°C in Corner Brook and 18°C in Stephenville.
The South Coast will also improve as the day goes on. Areas from Burgeo through Connaigre and Hermitage will start with cloud, drizzle and a few showers, but a developing westerly wind this afternoon should help push the fog back toward the coast and allow conditions to brighten. Highs should reach near 13°C.
Along the southwest coast and through the Wreckhouse corridor, the worst is over. Cloud and fog linger this morning, but partial clearing develops this afternoon as winds continue to ease. Temperatures will reach 10 to 12°C, with even nicer weather arriving Thursday.
The Northern Peninsula remains stuck under the influence of the system the longest. Rainfall totals of 15 to 25 mm are expected today, with easterly winds gusting to 40 km/h. Temperatures will barely move, staying near 5°C through the day and into tonight. Another 5 to 10 mm of rain is possible overnight, and the highest elevations could even see some wet snow mixed in. Thursday finally brings some improvement, but temperatures will still only manage 7 or 8 degrees. It's been a stubbornly cold and wet stretch across that part of the province.
In Labrador, there are three completely different weather stories unfolding. Lab West is once again the warm spot, with temperatures climbing to around 18°C today and potentially reaching 22°C on Thursday. That's about as close to spring as you'll find anywhere in the province right now.
Happy Valley-Goose Bay is coming off a soaking of its own after more than 20 mm of rain fell from a separate system moving up from Quebec's North Shore. Light rain continues this morning, but conditions should gradually improve through the day. By Thursday, the forecast is mostly dry.
Meanwhile, the North Coast remains chilly and foggy, with temperatures near 4°C and persistent northeast winds keeping skies grey and low clouds firmly in place.
Thursday looks like the best day of the week for much of Newfoundland. St. John's climbs to around 14°C, Gander reaches 16°C, and much of western Newfoundland enjoys sunshine and mild temperatures.
Enjoy it while you can.
Another system arrives Friday. Easterly winds strengthen once again, particularly along the south and southwest coasts. Areas from Channel–Port aux Basques to Burgeo could be looking at another round of strong winds and heavy rain, with the potential for another Wreckhouse wind event developing Friday afternoon and evening. Rain will spread across much of the Island through the day, and the weekend currently looks unsettled, especially across central and eastern Newfoundland. It does, however, look warmer!
I’ll keep a close eye on it as the forecast comes into better focus over the next couple of days.
My next update will be posted later today!
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