Chennai Weather Forecast & Update for Today, Wednesday, 21 October 2026: Expect Persistent Rain Showers and High Humidity, High of 28°C
Chennai's weather today, Wednesday, 21 October 2026, will be marked by slight rain showers and a very high humidity of 96%. Temperatures will feel like 30°C with a high of 28°C. Expect continuous drizzle throughout the day with a high chance of rain.
Chennai residents can expect a damp and humid Wednesday, 21 October 2026, with slight rain showers forecast throughout the day. The temperature will hover around a comfortable 25°C, but a high humidity of 96% will make it feel warmer, peaking around 30°C. The maximum temperature for the day is expected to reach 28°C.
| Current Weather in Chennai, Tamil Nadu — Wednesday, 21 October 2026 | ||
Temperature 25°C | Feels Like 30°C | High 28°C |
Low 25°C | Conditions Slight rain showers | Humidity 96% |
Wind Speed 10 km/h | ||
| Hourly Outlook for Chennai — Wednesday, 21 October 2026 | ||||
| Time (IST) | Temp | Conditions | Rain | Wind |
| 01:00 | 25°C | Slight rain showers | 100% | 10 km/h |
| 03:00 | 25°C | Slight rain showers | 100% | 8 km/h |
| 05:00 | 26°C | Moderate drizzle | 100% | 10 km/h |
| 07:00 | 26°C | Light drizzle | 95% | 11 km/h |
| 09:00 | 28°C | Moderate drizzle | 95% | 6 km/h |
| 11:00 | 26°C | Dense drizzle | 98% | 12 km/h |
| 13:00 | 28°C | Light drizzle | 99% | 13 km/h |
| 15:00 | 28°C | Light drizzle | 94% | 13 km/h |
Chennai, Tamil Nadu Weather Live Tracker Map on Windy
Overnight, conditions will remain consistently wet, with slight rain showers and a 100% chance of rain from 1 AM to 3 AM, with temperatures holding at 25°C and winds around 10 km/h. As the morning progresses, the drizzle is expected to intensify slightly, becoming moderate drizzle by 5 AM and dense drizzle around 11 AM. While the rain intensity varies, the chance of rain remains high, at 94% to 100% throughout the day, with wind speeds peaking at 13 km/h during the afternoon.
Given the persistent rain and high humidity, locals should be prepared for potentially slower commutes and increased moisture. Carrying umbrellas is advisable, especially during the morning and late afternoon hours when drizzle is forecast to be at its densest or most frequent. The chance of rain is a consistent 100% in the early hours, with a slight dip to 94% in the mid-afternoon.
Disclaimer: AI tools assisted in compiling the foundational data and research for this report. The final content was reviewed, edited and verified by human editors at LatestLY.
(The above story first appeared on LatestLY on Oct 21, 2026 01:39 AM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).