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Chicago Forecasts High Precipitation Levels
Chicago is facing high precipitation levels with a forecasted total of 40.8 mm. The automated alert system indicated that the forecasted value has crossed the established threshold.
According to forecast data from wweather1.com, high precipitation is expected in Chicago starting on September 19, 2026. The predicted rainfall amount of 40.8 mm exceeds the 30 mm threshold, triggering an automated weather alert.
Residents and local authorities in the affected area are advised to monitor the weather conditions closely as the system develops. The precipitation event is part of the current meteorological forecast for the city.
Further updates regarding the weather conditions in Chicago will be provided as additional forecast data becomes available.
Why it is dangerous and what to do
⚠️ Safety
• Monitor local weather updates and forecasts.
• Ensure proper drainage around your property.
• Exercise caution if traveling on wet roads.
📊 The numbers, from wweather1 data
Chicago: now +18°, Mostly clear.
The record for this date is +32° (1948).
Three-day forecast: 19 September: +23°/+18° · 20 September: +21°/+18° · 21 September: +18°/+16°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates. 📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.