Today | Weather | Monday, July 20, 2026

Active Weather Warnings

Weather in Largo, Florida

05:26 PM

Now

82° F

Feels Like 90°

Precipitation 45 %

Wind 17 mph

UV Index (0 - 11+) 1

Humidity 86 %

Today

Day 88°

Night 79°

Precipitation 97 %

Wind 13 mph

UV Index (0 - 11+) 6

Largo Weather Forecast Updated

11 minutes ago

Last updated on July 20, 2026 at 5:14 PM

Air Quality in Largo

NOW

30 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 3.41 µg/m³

PM₁₀ 6.87 µg/m³

O₃ 0.033 ppm

NO₂ 0.2 ppb

SO₂ 0.1 ppb

CO 0.08 ppm

NH₃ 0 µg/m³

NO 0.03 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 – 3.41 µg/m³

PM₁₀ – 6.87 µg/m³

O₃ – 64.21 µg/m³

NO₂ – 0.38 µg/m³

SO₂ – 0.17 µg/m³

CO – 95.74 µg/m³

NH₃ – 0 µg/m³

NO – 0.03 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Largo

Severe Immediate Likely

Special Marine Warning

Special Marine Warning issued July 20 at 4:45PM EDT until July 20 at 5:45PM EDT by NWS Tampa Bay Ruskin FL

Jul 20, 4:45 PM → Jul 20, 5:45 PM

SMWTBW

The National Weather Service in Ruskin has issued a

* Special Marine Warning for...
Coastal waters from Englewood to Tarpon Springs FL out 20 NM...
Coastal waters from Tarpon Springs to Suwannee River FL out 20
NM...
Tampa Bay waters...
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM...
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM...

* Until 545 PM EDT.

* At 445 PM EDT, a strong thunderstorm was located near Sarasota Bay,
moving north at 40 knots.

HAZARD...Wind gusts 34 knots or greater.

SOURCE...Radar.

IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher
waves, frequent lightning, and heavy downpours. Make sure
all on board are wearing life jackets.

* Locations impacted include...
Terra Ceia Bay, D5 Reef, Manatee Nearshore Reef, Howard Frankland
Bridge, Madeira Beach Reef, Longboat Key, Venice Inlet, Cockroach
Bay, Md1 Reef, M7 Reef, Anna Maria Island, Hernando Beach, M8 Reef,
M17 Reef, Pass-A-Grille Channel, Southwest Channel, D6 Reef, M1
Reef, Tampa Bay, and Hillsborough Bay.

+ Read More

Move to safe harbor immediately as gusty winds and high waves are expected.

Updated: Jul 20, 5:14 PM Source: NWS Alert

Moderate Expected Likely

Rip Current Statement

Rip Current Statement issued July 20 at 12:52AM EDT until July 21 at 8:00PM EDT by NWS Tampa Bay Ruskin FL

Jul 20, 12:52 AM → Jul 21, 8:00 PM

WHAT: Dangerous rip currents.

WHERE: Pinellas, Coastal Hillsborough, Coastal Manatee,
Coastal Sarasota, Coastal Charlotte and Coastal Lee Counties.

WHEN: through 8 PM Tuesday.

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

+ Read More

There is a high risk of rip currents. Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as groins, jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. If you become caught in a rip current, yell for help. Remain calm, do not exhaust yourself and stay afloat while waiting for help. If you have to swim out of a rip current, swim parallel to shore and back toward the beach when possible. Do not attempt to swim directly against a rip current as you will tire quickly.

Updated: Jul 20, 5:14 PM Source: NWS Alert

Weather in Largo, Florida

Largo Weather Forecast Updated

Air Quality in Largo

Pollutant Concentrations:

Health Recommendations:

Weather Alerts and Warnings for Largo

Special Marine Warning

Rip Current Statement

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