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Today | Weather | Sunday, September 21, 2025
Active Weather Warnings

Weather in Jacksonville, Florida

11:58 PM
Now
Cloudy Night
73° F
Feels Like 79°
Precipitation 1 %
Wind 6 mph
Humidity 93 %
Today
Sunny with a Chance of Thunderstorms
Day 88°
Night 70°
Precipitation 55 %
Wind 14
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.

Jacksonville Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (September 21, 2024)

Cloudy Weather

Day

86°

Night

75°

Wind

9 mph

UV Index

7

Precipitation

25

Air quality in Jacksonville

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

Pollutant Concentrations:

PM2.5 8.76 µg/m³
PM10 18.47 µg/m³
O₃ 35.76 ppb
NO₂ 4.82 ppb
SO₂ 0.26 ppb
CO 383.03 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Jacksonville

Moderate Expected Likely

Rip Current Statement

Rip Current Statement issued September 20 at 11:58PM EDT until September 23 at 8:00PM EDT by NWS Jacksonville FL
Sep 20, 11:58 PM → Sep 23, 8:00 PM
WHAT: Dangerous rip currents.

WHERE: Northeast Florida Beaches.

WHEN: Through Tuesday 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: Sep 21, 10:28 PM Source: NWS Alert