Today | Weather | Thursday, May 21, 2026

Active Weather Warnings

Rip Current Statement

Weather in Boca Raton, Florida

11:19 AM

Now

84° F

Feels Like 91°

Precipitation 34 %

Wind 13 mph

UV Index (0 - 11+) 4

Humidity 68 %

Today

Day 88°

Night 79°

Precipitation 80 %

Wind 13 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.

Boca Raton Weather Forecast Updated

18 minutes ago

Last updated on May 21, 2026 at 11:00 AM

Weather Forecast History

Last Year's Weather on This Day (May 21, 2025)

Day

93°

Night

79°

Wind

11 mph

UV Index

Precipitation

40 %

Air Quality in Boca Raton

NOW

31 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 1.6 µg/m³

PM₁₀ 5.64 µg/m³

O₃ 0.033 ppm

NO₂ 0.2 ppb

SO₂ 0.1 ppb

CO 0.08 ppm

NH₃ 0 µg/m³

NO 0.06 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 – 1.6 µg/m³

PM₁₀ – 5.64 µg/m³

O₃ – 65.09 µg/m³

NO₂ – 0.32 µg/m³

SO₂ – 0.27 µg/m³

CO – 93.66 µg/m³

NH₃ – 0 µg/m³

NO – 0.06 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Boca Raton

Moderate Expected Likely

Rip Current Statement

Rip Current Statement issued May 21 at 3:42AM EDT until May 22 at 8:00PM EDT by NWS Miami FL

May 21, 3:42 AM → May 22, 8:00 PM

WHAT: Dangerous rip currents.

WHERE: Coastal Palm Beach County.

WHEN: Through Friday evening.

IMPACTS: Rip currents can sweep even the best swimmers away
from shore into deeper water.

+ Read More

Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

Updated: May 21, 11:00 AM Source: NWS Alert