Sat Sep 20 06:40:27 UTC 2025: Okay, here’s a summary and a rewritten news article based on the provided text:

**Summary:**

Chennai experienced pleasant weather on Saturday, September 20, 2025, due to overnight showers across several districts in Tamil Nadu. The heavy rain was triggered by prevailing weather systems over the south Peninsular region. Arakkonam and Jaya Engineering College received the highest rainfall (7 cm). The Regional Meteorological Centre (RMC) forecasts similar weather patterns to continue over North Tamil Nadu. A low-pressure area expected to form over the Bay of Bengal after September 25th will significantly influence future rainfall in the region.

**News Article:**

**Chennai Cools Down as Overnight Showers Lash Tamil Nadu**

**CHENNAI, September 20, 2025** – Chennai residents awoke to a pleasant surprise this Saturday morning as overnight showers brought respite from the recent heat. Widespread thunderstorm activity across North Tamil Nadu resulted in cooler temperatures and waterlogged streets in some areas, notably Vellore, as depicted in a photo by C. Venkatachalapathy.

According to the Regional Meteorological Centre (RMC), weather systems over the south Peninsular region were responsible for the thunderstorm activity. Arakkonam in Ranipet district and Jaya Engineering College in Tiruvallur district recorded the highest rainfall at 7 cm. Several other areas, including Ambattur, Ayapakkam, and Korattur, also experienced significant rainfall. Light to moderate showers were reported across Tiruchi, Chennai, Tiruvallur, Cuddalore, Vellore, Nilgiris, Kancheepuram, Salem, Erode, and Pudukkottai districts.

The rainfall brought Saturday’s maximum temperature down to 29 degrees Celsius by 11 a.m. The RMC forecasts similar weather conditions to persist over North Tamil Nadu, including Chennai, on Sunday. Officials note that evening or nighttime convective activity is typical for Chennai during the Southwest monsoon.

The RMC’s Nowcast predicts light to moderate rainfall for Chengalpattu district and light rainfall for Chennai, Villupuram, Tiruvallur, and Nilgiris until 1 p.m. today. Looking ahead, a low-pressure area expected to develop over the Northeast Bay of Bengal after September 25th is predicted to be a key factor determining rainfall patterns in Tamil Nadu in the coming weeks.

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