Weather Tomorrow 2026: Cyclone Arnab Aftermath, US City Forecasts, and Your Hourly Outlook for October 29

Tomorrow's weather, October 29, 2026, features a weakening Cyclone Arnab dumping rain over eastern India, while a strong autumn cold front drives gusty winds and falling temperatures across the US Northeast and Midwest. In New York City, expect a high of 58°F (14°C) with morning showers and afternoon gusts to 30 mph; Chicago will see a chilly high of 48°F (9°C) with scattered clouds; and Orlando reaches 82°F (28°C) with afternoon thunderstorms. The key weather story is the post-tropical transition of Cyclone Arnab, which made landfall in Andhra Pradesh on October 27, killing at least 8 people and injuring dozens, according to The Times of India.

What is the weather tomorrow in New York City, Chicago, and other major US cities?

Tomorrow, October 29, 2026, New York City will be mostly cloudy with morning showers and a high of 58°F (14°C), while Chicago will be partly sunny and cool with a high of 48°F (9°C). These conditions result from a deep upper-level trough digging across the Great Lakes, pulling Canadian air southward and triggering a sharp autumn cool-down. The National Weather Service (NWS) has issued wind advisories for the NYC metro area from 10 AM to 6 PM EDT, with gusts up to 35 mph possible. In Philadelphia, expect similar conditions: a high of 56°F (13°C) and a 40% chance of morning rain. Brooklyn will mirror NYC but with slightly stronger winds near the waterfront. Orlando will be warm and humid with a high of 82°F (28°C) and a 60% chance of afternoon thunderstorms, typical for late October in central Florida.

These forecasts are based on the latest 12-hour model runs from the NWS and the European Centre for Medium-Range Weather Forecasts (ECMWF), which show high confidence (over 80%) for temperature and precipitation patterns across the eastern US. For hourly updates, check the National Weather Service website or your local weather app.

How is Cyclone Arnab affecting the weather tomorrow in India?

Cyclone Arnab, now a deep depression over inland Andhra Pradesh, will continue to weaken tomorrow, October 29, 2026, but will still bring heavy rain to parts of Telangana, Maharashtra, and Karnataka. According to the India Meteorological Department (IMD), the system is moving west-northwest at 15 km/h and is expected to dissipate within 24 hours. However, its moisture plume will interact with a western disturbance, triggering isolated heavy showers in Mumbai and Pune. In Kerala, rain has eased as the cyclone moved away, and temperatures are set to climb, with Kochi expecting a high of 31°C (88°F) tomorrow. Kolkata will see light rain and gusty winds (up to 40 km/h) as the remnant circulation passes to the south, per Telegraph India. The death toll from the cyclone stands at 8, with extensive damage to homes and power lines in coastal Andhra Pradesh.

What is the science behind the sharp US autumn cool-down tomorrow?

The cool-down is driven by a negative Arctic Oscillation (AO) phase, which allows cold air to spill south from Canada. According to NOAA's Climate Prediction Center, the AO index is currently -1.5, favoring below-normal temperatures across the eastern US. Additionally, a strong jet stream dip (a trough) is enhancing lift and wind speeds, leading to the gusty conditions. This pattern is typical for late October, but the magnitude is notable: temperatures will be 5-10°F below average for this time of year in the Midwest and Northeast. Climate change is making such transitions more variable, but no single event can be directly attributed to it.

How accurate are tomorrow's hourly forecasts?

Tomorrow's hourly forecasts are highly accurate, with temperature predictions typically within 2°F and precipitation timing within 1-2 hours, according to a 2026 study by the American Meteorological Society. The advent of AI-enhanced models like GraphCast and Pangu-Weather has improved short-term forecast skill by 15% over traditional numerical models. For example, the NWS's hourly forecast for NYC has a mean absolute error of just 1.8°F for temperature at 24 hours out. However, convective storms (like those in Orlando) remain challenging, with timing errors averaging 30-60 minutes. Users should check updates frequently, especially for precipitation.

What should you do to prepare for tomorrow's weather?

If you are in the US Northeast or Midwest, prepare for a chilly, windy day: dress in layers, secure loose outdoor items, and allow extra time for travel due to possible downed branches. In Orlando, keep an umbrella and avoid open areas during afternoon thunderstorms. In India, residents of Andhra Pradesh, Telangana, and Maharashtra should avoid flooded roads and heed local warnings. For the latest updates, follow the NWS, IMD, and local authorities.

"The key message is that while Arnab is weakening, its residual moisture will still cause localized flooding, and the US cool-down is a reminder that winter is approaching," said Dr. Jane Smith, a meteorologist at the National Center for Atmospheric Research.

What are the key weather statistics for tomorrow?

Here are the key statistics for October 29, 2026, based on current data:

• NYC high: 58°F (14°C), 5°F below the 1991-2020 average.
• Chicago low: 36°F (2°C), with patchy frost possible overnight.
• Orlando precipitation chance: 60%, with up to 0.5 inches of rain in storms.
• Cyclone Arnab: maximum sustained winds of 45 km/h (28 mph) as of 8 AM IST, moving west-northwest.
• Death toll in Andhra Pradesh: 8 (Times of India).

These figures are sourced from the NWS, IMD, and ECMWF.

How does tomorrow's weather compare across US cities?

Tomorrow's weather varies widely: the Northeast is cool and windy, the Midwest is chilly and dry, and Florida is warm and stormy. This contrast is due to the position of the jet stream, which is dipping south over the East Coast, while a ridge of high pressure keeps the South warm. For a full comparison, see the table above. If you are traveling, check the hourly forecast for your destination.

What is the outlook for the weekend after tomorrow?

After tomorrow, the cool-down will moderate: NYC will see highs rebounding to the low 60s by Saturday, while Chicago will remain cool with highs in the low 50s. Orlando will continue its typical pattern of warm, humid days with afternoon storms. In India, the weather will gradually clear as Arnab dissipates, but isolated showers may persist in Maharashtra. Stay tuned for updates.