Today | Weather | Tuesday, July 21, 2026
Active Weather Warnings

Weather in Fort Worth, Texas

04:01 AM
Now
Night
82° F
Feels Like 82°
Precipitation 0 %
Wind 7 mph
Humidity 52 %
Today
Cloudy Weather
Day 106°
Night 82°
Precipitation 2 %
Wind 6 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.

Fort Worth Weather Forecast Updated

18 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (July 21, 2025)
Cloudy Night

Day

97°

Night

77°

Wind

12 mph

Precipitation

1 %

Air Quality in Fort Worth

NOW
28 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.54 µg/m³
PM10 6.66 µg/m³
O3 0.030 ppm
NO2 1.1 ppb
SO2 0.1 ppb
CO 0.08 ppm
NH3 2.17 µg/m³
NO 0 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.54.54 µg/m³
PM106.66 µg/m³
O358.84 µg/m³
NO22.01 µg/m³
SO20.37 µg/m³
CO97.07 µg/m³
NH32.17 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Fort Worth

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued July 21 at 12:38AM CDT until July 21 at 8:00PM CDT by NWS Fort Worth TX
Jul 21, 12:00 PM Jul 21, 8:00 PM
WHAT: Dangerously hot conditions with temperatures up to 105 and
heat index values up to 112 expected.

WHERE: Portions of north central and northeast Texas.

WHEN: From noon today to 8 PM CDT this evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.
+ Read More
Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous activities to the early morning or evening. Check up on relatives and neighbors. Never leave young children or pets in an enclosed vehicle, even for a short time, as temperatures can quickly rise to life-threatening levels. Know the signs and symptoms of heat exhaustion and heat stroke. To reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat stroke. Extreme heat is dangerous, especially for those without reliable shelter. Limit time outdoors during the hottest time of the day, typically from 2 to 7 PM, rest in the shade when possible, and drink plenty of water. Locate nearby cooling centers through local resources or dial 2-1-1 in Texas.
Updated: Jul 21, 3:43 AM Source: NWS Alert
Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 20 at 11:09AM CDT until July 21 at 8:00PM CDT by NWS Fort Worth TX
Jul 20, 12:00 PM Jul 21, 8:00 PM
WHAT: Heat index values up to 108 expected.

WHERE: Portions of north central, northeast, and south central
Texas.

WHEN: Until 8 PM CDT Tuesday.

IMPACTS: Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.
+ Read More
Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous activities to the early morning or evening. Check up on relatives and neighbors. Never leave young children or pets in an enclosed vehicle, even for a short time, as temperatures can quickly rise to life-threatening levels. Know the signs and symptoms of heat exhaustion and heat stroke. To reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat stroke.
Updated: Jul 20, 11:13 PM Source: NWS Alert