TODAY’S WEATHER — May 30, 2026

The Temperature Story — A 22°C Swing in 4 Days

To understand why today’s weather feels like relief, consider what Delhi went through this week:

This turbulent weather has brought massive relief, plunging daytime temperatures by a significant 7°C to 10°C over 48 hours.

The night-time shift is equally dramatic — from 32°C warm nights (when it felt like a furnace even at midnight) to a much more bearable 24–25°C tonight. Humidity is elevated, but the raw heat has broken.

What Made the Temperature Drop? — The Western Disturbance

A fresh Western Disturbance is affecting Northwest India from May 28, which has increased rain activity and reduced temperatures significantly.

A powerful combination of a Western Disturbance and moisture-laden easterly winds swept across the National Capital Region — producing thundersqualls and dust storms with gusty winds reaching 60 to 80 km/h.

What is a Western Disturbance? A Western Disturbance is an extratropical storm that originates over the Mediterranean or Atlantic Ocean and travels eastward across Central Asia and Pakistan, eventually bringing moisture and precipitation to Northwest India. During summer, they are weaker than winter Western Disturbances — but when they interact with moisture-laden winds from the Bay of Bengal and Arabian Sea, they trigger sharp thunderstorms, dust squalls and sudden temperature drops of the kind Delhi experienced on May 28–29.

Today’s Forecast — What to Expect Hour by Hour

The weather department has warned of very light to light showers with thunderstorms and lightning during the afternoon and evening. Gusty winds of 50–60 kmph may occur and could reach 70 kmph in some areas.

Morning (until noon): Partly sunny, warm but manageable at 32–34°C. Relatively lower humidity compared to recent mornings.

Afternoon (12 PM–4 PM): Clouds building. Temperature near peak 35–36°C. Increasing humidity. Avoid prolonged outdoor exposure.

Evening (4 PM–8 PM): Best chance of rain and thunderstorms. Lightning activity possible. Gusty winds 50–70 kmph. If heading out — carry an umbrella and plan for traffic disruption if storms hit.

Night: Cloudy, temperatures falling to 24–25°C. Significantly more comfortable than the past week.

7-Day Delhi Weather Forecast — May 30 to June 3, 2026

May 31 is the big rain day. With a 95% precipitation probability, Sunday is the day to stay indoors if possible, avoid low-lying areas that flood, and keep children and elderly away from open spaces during storm activity.

IMD Alerts — What the Colour Codes Mean

The India Meteorological Department issued an orange alert for Delhi and Noida, and a red alert for Gurugram during the peak weather disruption on May 28.

As of today (May 30), Delhi is under a Yellow Alert — the least severe of IMD’s three alert levels:

Today’s Yellow Alert means the risk is present but manageable. By May 31, IMD may upgrade this to Orange given the 95% rain probability.

Health Advisory — Heatwave Recovery + Rain Transition

Delhi has just emerged from one of the most intense May heat periods in recent memory. The sudden shift to rain and cooler temperatures brings its own risks:

During heat-to-rain transition:

• Viral infections rise — the body’s immunity adapts more slowly than the thermometer drops. Keep warm at night even with lower temperatures.
• Stay hydrated — even in cooler weather, the body is still recovering from heat stress. Dehydration risks persist.
• Lightning safety — with thunderstorms expected, avoid open fields, tall trees and elevated structures during storms.
• Traffic disruption — rain + gusty winds mean flooded underpasses, fallen branches and visibility drops. Allow extra commute time in the evening.
• Waterborne illness risk — post-rain waterlogging increases mosquito breeding and contamination risk. Use water purification as usual.

IMD Monsoon Outlook — When Is Delhi Getting the Monsoon?

Delhi’s monsoon arrival is typically expected around June 27–30 — though it has been arriving earlier in recent years due to climate pattern shifts.

With the Western Disturbance clearing and normal heat expected to rebuild from June 2–3, the pre-monsoon period (Nautapa plus heat weeks) will likely intensify before the Southwest Monsoon finally arrives. IMD’s current long-range forecast suggests a normal to above-normal monsoon for most of northwest India in 2026.

Delhi’s Hottest Stations — Where the Heat Was Worst

During the May 25–27 heatwave peak, here is how Delhi’s various weather stations compared:

Safdarjung Observatory is Delhi’s official temperature marker — but suburban and outer Delhi stations regularly record 1–3°C higher due to reduced vegetation, more concrete and less tree cover.

The Big Stat — Delhi’s Wettest March in 3 Years

Rainfall in March 2026 was recorded at 19.82 mm, making it the highest for the month since 2023, when rainfall was significantly higher at 50.4 mm, while rainfall in 2024 and 2025 remained lower than 2026 levels.

The India Meteorological Department said six western disturbances affected northwest India between March 11 and 31, leading to thunderstorms and rainfall activity.

Six western disturbances in just 20 days — that is an unusually high count that directly explains why Delhi’s skies stayed so unsettled through the second half of March.

March 31 — Orange Alert Day

An orange weather warning has been issued by the India Meteorological Department (IMD) for all districts of the national capital on Tuesday afternoon, March 31.

Light rain and drizzle were reported across Delhi, Noida, Gurugram, and Ghaziabad on March 31, along with thunderstorms and lightning, bringing temporary relief from rising temperatures. Daytime temperatures stayed around 30–33°C, slightly above normal for March, though rainfall and winds caused brief cooling.

The IMD predicted violent thunderstorms, heavy rainfall, gusty winds and cloudy conditions across Delhi-NCR and parts of Uttar Pradesh, Haryana, Punjab and Rajasthan on March 31.

An orange alert — defined as “be prepared” for severe weather — means residents and commuters should expect:

• Thunderstorms and lightning
• Gusty winds up to 60 km/h
• Light to moderate rain
• Possible traffic disruption
• Flight delays at IGI Airport

Station-Wise Rainfall Data — How Much Did Different Parts of Delhi Get?

On Friday morning, rainfall was recorded at multiple weather stations across the national capital. Safdarjung and Lodhi Road both recorded 8.2 mm of rainfall, while Ridge reported 8.6 mm. Palam received 6.2 mm, and Ayanagar recorded 7.2 mm of rainfall.

A similar rainy condition was witnessed on Thursday when gusty winds swept the national capital, sending the day temperature dipping sharply — the maximum temperature settled at 26.8 degrees Celsius, the lowest so far this month.

Temperature Rollercoaster — From 26°C to 33°C in Days

The persistent cloud cover and intermittent rainfall brought relief to the city, which had been sweltering in warmer conditions for days.

Daytime temperatures in Delhi stayed around 30–33°C by March end, slightly above normal for the season, though rainfall and winds caused brief cooling spells and more comfortable conditions.

IMD forecast for Delhi on March 31 showed a partly cloudy sky becoming generally cloudy towards the afternoon, with a spell of very light rain accompanied by thunderstorms, lightning and strong surface winds at 20–30 kmph gusting to 40 kmph.

The Pollution Paradox — Wettest March But Most Polluted in 4 Years

Here is the most surprising finding of the month — all that rain didn’t actually clean Delhi’s air.

Delhi recorded its most polluted March in four years in 2026, with an average Air Quality Index (AQI) reading of 181 till March 30, the highest since 2022, when it stood at 217. In comparison, the average AQI reading was 170 in 2023, 176 in 2024 and 170 in 2025.

In March 2026, Delhi recorded one ‘satisfactory’ day, 22 ‘moderate’ days and eight ‘poor’ days.

Why was pollution so high despite heavy rain? The answer lies in what the rain couldn’t wash away.

Experts noted a shift in the nature of pollution this month, with gaseous pollutants playing a more prominent role. Ozone emerged as the prominent pollutant for 16 days during the month. There were also higher concentrations of gaseous pollutants such as ozone, carbon monoxide and nitrogen dioxide compared to March in previous years.

Delhi’s air quality showed slight improvement following the rainfall, with the AQI remaining in the ‘moderate’ category at most monitoring stations across the city.

Rain clears particulate matter like PM2.5 and PM10 — but ozone and nitrogen dioxide are gaseous and don’t get washed out by showers. That’s the pollution paradox of March 2026.

Delhi’s March 2026 — Three Records in One Month

Rain on one day, heat on another, and pollution remaining elevated throughout — Delhi recorded its most polluted March in four years, its wettest in three years and its hottest since 2022.

What’s Next? — April 2026 Weather Forecast for Delhi

Similar conditions are likely to continue, with light rain expected in patches between April 2 and 4. Thunderstorms are likely between April 6 and 8, which may prevent heatwave conditions in the early part of the month.

IMD has predicted continued thunderstorm activity across Delhi-NCR and parts of North India driven by western disturbances staying active through early April.

Forecast Summary for Early April 2026:

IMD Safety Tips — What To Do During Thunderstorms in Delhi

With orange and yellow alerts still active, here’s what IMD and authorities advise:

• Stay indoors during active thunderstorm warnings
• Avoid open areas and large trees during lightning activity
• Slow down on wet roads — hydroplaning risk increases with gusty winds
• Follow IMD’s weather app (Mausam App) for real-time alerts
• Farmers in Delhi-NCR — protect crops and harvest from sudden storms
• Travellers — check flight status before heading to IGI Airport on alert days

Delhi March 2026 Weather — FAQs

Q. Was March 2026 the wettest March for Delhi ever?

No — the wettest was 2023 with 50.4 mm. But March 2026’s 19.82 mm made it the wettest in 3 years, since 2024 and 2025 saw lower rainfall.

Q. Why was Delhi’s AQI high despite so much rain?

Rain clears solid particles but not gaseous pollutants like ozone, CO and nitrogen dioxide. Ozone was the dominant pollutant for 16 out of 30 days in March 2026.

Q. What caused so much rain in Delhi this March?

Six western disturbances affected northwest India between March 11 and 31 — an unusually high frequency that drove repeated spells of rain and thunderstorms.

Q. Will it rain in Delhi in April 2026?

Yes — light rain is expected between April 2–4 and thunderstorms between April 6–8, which should delay typical summer heatwave conditions.

Q. What does an IMD Orange Alert mean?

Orange Alert means “be prepared” for severe weather conditions that could disrupt daily life including transport, outdoor activities and power supply.

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