Tamil Nadu and Chennai weather news: ilgiris, Coimbatore, Tiruppur, Dindigul, Theni, Tenkasi, Tirunelveli, Kanyakumari, Erode, Krishnagiri, Dharmapuri, Salem, Namakkal, Kallakurichi, Perambalur, Ariyalur, Cuddalore, Villupuram, and Mayiladuthurai will get heavy rains on October 24 and 25.