Today | Weather | Monday, July 20, 2026

Active Weather Warnings

Weather in Melbourne, Florida

05:26 PM

Now

84° F

Feels Like 91°

Precipitation 47 %

Wind 15 mph

UV Index (0 - 11+) 3

Humidity 70 %

Today

Day 91°

Night 79°

Precipitation 55 %

Wind 14 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.

Melbourne Weather Forecast Updated

9 minutes ago

Last updated on July 20, 2026 at 5:16 PM

Air Quality in Melbourne

NOW

28 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 3.22 µg/m³

PM₁₀ 3.78 µg/m³

O₃ 0.030 ppm

NO₂ 0.4 ppb

SO₂ 0.2 ppb

CO 0.08 ppm

NH₃ 0.13 µg/m³

NO 0.1 µg/m³

PM_2.5 – 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 3.22 µg/m³

PM₁₀ – 3.78 µg/m³

O₃ – 58.68 µg/m³

NO₂ – 0.84 µg/m³

SO₂ – 0.53 µg/m³

CO – 95.15 µg/m³

NH₃ – 0.13 µg/m³

NO – 0.1 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Melbourne

Severe Immediate Likely

Special Marine Warning

Special Marine Warning issued July 20 at 5:09PM EDT until July 20 at 6:45PM EDT by NWS Melbourne FL

Jul 20, 5:09 PM → Jul 20, 6:45 PM

SMWMLB

The National Weather Service in Melbourne has issued a

* Special Marine Warning for...
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm...

* Until 645 PM EDT.

* At 509 PM EDT, a strong thunderstorm was located over West
Melbourne, or near Melbourne, moving north at 10 knots.

HAZARD...Wind gusts 34 knots or greater.

SOURCE...Radar.

IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher
waves, lightning and heavy downpours. Make sure all on
board are wearing life jackets. Return to safe harbor if
possible.

* Locations impacted include...
Palm Shores, Patrick Air Force Base, Cocoa Beach, Jetty Park, and
Port Canaveral.

Updated: Jul 20, 5:16 PM Source: NWS Alert

Minor Expected Observed

Marine Weather Statement

Marine Weather Statement issued July 20 at 4:57PM EDT by NWS Melbourne FL

Jul 20, 4:57 PM → Jul 20, 6:00 PM

The areas affected include...
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm...

At 457 PM EDT, Doppler radar indicated a strong thunderstorm, capable
of producing winds to around 30 knots. This thunderstorm was located
over West Melbourne, or near Melbourne, moving north at 10 knots.

+ Read More

Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes.