Home → Weather news → Heavy Rainfall Forecast for Key West on September 13, 2026
Heavy Rainfall Forecast for Key West on September 13, 2026
An automatic weather alert indicates high-severity rainfall in Key West, United States, on September 13, 2026. Forecast models project total precipitation to reach 78.1 mm.
According to automated forecast data from wweather1.com, heavy rain is expected in Key West, US, beginning on September 13, 2026, at 00:00:00.000Z. The forecasted precipitation amount for the day is 78.1 mm.
This event has been categorized as a high-severity alert because the predicted rainfall significantly exceeds the standard threshold. The predefined threshold for this alert metric is 30 mm.
The alert was generated automatically after wweather1.com's forecast data crossed the threshold, indicating notable rainfall for the designated forecast date.
Why it is dangerous and what to do
⚠️ Safety
• Avoid driving or walking through flooded roads or low-lying areas.
• Clear outdoor drainage pathways to prevent water accumulation near property.
• Monitor local updates and official advisories for changes in weather conditions.
📊 The numbers, from wweather1 data
Key West: now +30°, Partly cloudy.
That is 4° above the October climate norm.
The record for this date is +30° (2023).
Three-day forecast: 13 October: +31°/+26° · 14 October: +30°/+25° · 15 October: +29°/+25°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates. 🌍 Weather in nearby cities
Havana
now
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+28°
Jacksonville
now
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+27°
Cancún
now
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+29°
Miami
now
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+29°
Tampa
now
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+30°
Orlando
now
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+29°
📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.