<img src="https://www.mtlblog.com/media-library/a-car-drives-through-a-rain-storm-in-montreal.jpg?id=61464579&width=1200&height=800&coordinates=132%2C0%2C132%2C0"/><br/><br/><p>After a summer full of <a href="https://www.mtlblog.com/montreal-weather-heat-august-2025" target="_blank">heat waves</a>, sticky humidity, surprise downpours and even a few <a href="https://www.mtlblog.com/montreal-weather-air-quality-july-15" target="_blank">air quality alerts</a>, you might be hoping September weather gives folks in Quebec a smooth landing into fall. The latest <a href="https://www.farmersalmanac.com/long-range-weather-forecast/nova-scotia-pei-new-brunswick-quebec" target="_blank">long-range forecast from the Farmers' Almanac</a> says… well, not exactly.</p><p>The century-old publication — known for using a quirky mix of math and astronomy to make long-range predictions — is calling for a bit of everything next month. And while it's not the most scientific forecast in the world, its big-picture outlook tends to line up with reality more often than you'd think.</p><p>According to the Almanac, September will be a total mixed bag, starting stormy, mellowing out mid-month, and then flipping back and forth between sunshine and showers. </p><p>Here's the breakdown:</p> <ul> <li> <strong>Sept. 1 to 3:</strong> Thunderstorms around Labour Day, then a quick return to sunshine.</li> <li> <strong>Sept. 4 to 7:</strong> Scattered showers and storms, followed by clear skies.</li> <li> <strong>Sept. 8 to 11:</strong> A bit of everything, from clouds to sun.</li> <li> <strong>Sept. 12 to 15:</strong> Mostly sunny and dry.</li> <li> <strong>Sept. 16 to 19:</strong> Nice weather before some on-and-off rain.</li> <li> <strong>Sept. 20 to 23:</strong> Warm, sunny conditions.</li> <li> <strong>Sept. 24 to 27:</strong> Heavy showers and possible thunderstorms.</li> <li> <strong>Sept. 28 to 30:</strong> Gradual clearing and a calmer finish.</li> </ul> <p>So, in short: expect a bumpy start to the month, some gorgeous patio weather in the middle, and a few curveballs before October rolls in.</p><p>And if you're already wondering what's in store after the leaves fall, you can check out <a href="https://www.mtlblog.com/quebec-weather-winter-2025-2026" target="_self">Quebec's winter 2025-2026 forecast here</a>.</p><p><em>Love this? Check out our <a href="https://www.mtlblog.com/notices/" target="_blank">MTL Blog noticeboard</a> for details on jobs, benefits, travel info and more!</em></p><p><em>AI tools may have been used to support the creation or distribution of this content; however, it has been carefully edited and fact-checked by a member of MTL Blog's Editorial team. For more information on our use of AI, please visit our <a href="https://www.mtlblog.com/editorial-standards" target="_blank">Editorial Standards page</a>.</em></p>