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High Rainfall Forecast for Miami on September 20, 2026
An automatic alert from wweather1.com indicates high rainfall projected for Miami on September 20, 2026. The forecasted precipitation levels have crossed the system's high-severity threshold.
According to forecast data from wweather1.com, Miami, US, is expected to experience heavy rain on September 20, 2026. The event timeline begins at 00:00:00.000Z on the forecast date.
The automated system logged a precipitation value of 42.63 mm for the event. This figure exceeds the predefined metric threshold of 30 mm, prompting a high-severity rain alert.
The warning was automatically generated by wweather1.com based on its internal forecast monitoring system after the predicted values crossed the threshold.
Why it is dangerous and what to do
⚠️ Safety
• Avoid driving or walking through flooded roadways.
• Stay tuned to local weather updates and advisories.
• Ensure outdoor drainage paths around homes are clear of debris.
📊 The numbers, from wweather1 data
Miami: now +24°, Overcast.
That is 1° below the September climate norm.
The record for this date is +31° (1942).
Three-day forecast: 20 September: +28°/+23° · 21 September: +29°/+22° · 22 September: +31°/+25°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates. 🌍 Weather in nearby cities
Havana
now
⛅
+24°
Jacksonville
now
⛅
+24°
Miami
now
☁️
+24°
Tampa
now
🌙
+23°
Orlando
now
☁️
+22°
Nassau
now
☁️
+25°
📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.