Today | Weather | Wednesday, August 12, 2026
Active Weather Warnings

Weather in Deltona, Florida

07:48 AM
Now
Cloudy Weather
79° F
Feels Like 91°
Precipitation 7 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 92 %
Today
Cloudy Weather
Day 97°
Night 77°
Precipitation 25 %
Wind 7 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Deltona Weather Forecast Updated

32 minutes ago
Last updated on

Air Quality in Deltona

NOW
52 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 12.74 µg/m³
PM10 14.13 µg/m³
O3 0.012 ppm
NO2 3.9 ppb
SO2 0.1 ppb
CO 0.15 ppm
NH3 3.35 µg/m³
NO 0.58 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.512.74 µg/m³
PM1014.13 µg/m³
O323.67 µg/m³
NO27.3 µg/m³
SO20.25 µg/m³
CO175.84 µg/m³
NH33.35 µg/m³
NO0.58 µg/m³

Weather Alerts and Warnings for Deltona

Moderate Expected Likely

Heat Advisory

Heat Advisory issued August 12 at 3:15AM EDT until August 12 at 8:00PM EDT by NWS Melbourne FL
Aug 12, 10:00 AM Aug 12, 8:00 PM
WHAT: Heat index values up to 108 to 112 expected.

WHERE: A portion of east central Florida.

WHEN: From 10 AM this morning to 8 PM EDT this evening.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Aug 12, 7:15 AM Source: NWS Alert