# Weather patterns in North America

> Live situation record from CLSTR: https://clstr.news/situations/weather-patterns-in-north-america
> Updated: 2026-09-04T09:52:22.000Z. Sources: 2. Developments: 2.

Weather patterns across North America have featured recurring risks of fog and thunderstorms. In mid-August, parts of Canada and the United States experienced patchy fog and reduced visibility, with forecasts indicating potential afternoon thunderstorms and high humidity.

By early September, weather variability continued across the United States. In the Northeast, dense fog impacted visibility, while the Northland region faced a forecast of thunderstorms, including potentially severe storms in north-central Minnesota. A low-pressure system was expected to bring widespread rain and wind gusts of up to 40 mph during the Labor Day period.

## Timeline

### 2026-09-04: Weather forecasts predict thunderstorms and fog across US regions

Weather forecasts for the Labor Day weekend indicate thunderstorms and potential severe weather in the Northland, while the Northeast expects fog followed by scattered showers and milder temperatures.

2 sources. https://clstr.news/cluster/weather-forecasts-predict-thunderstorms-and-fog-across-us-regions

### 2026-08-12: Fog and thunderstorm risks reported across North America

Patchy fog and reduced visibility are affecting parts of Canada and the US this morning, with a risk of afternoon showers and thunderstorms expected in several regions.

2 sources. https://clstr.news/cluster/fog-and-thunderstorm-risks-reported-across-north-america

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Cite as: Weather patterns in North America. CLSTR, https://clstr.news/situations/weather-patterns-in-north-america