Today | Weather | Tuesday, June 9, 2026

Active Weather Warnings

Weather in St. George, Utah

05:51 PM

Now

97° F

Feels Like 93°

Precipitation 0 %

Wind 15 mph

UV Index (0 - 11+) 2

Humidity 10 %

Today

Day 97°

Night 70°

Precipitation 0 %

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.

St. George Weather Forecast Updated

30 minutes ago

Last updated on June 09, 2026 at 5:20 PM

Air Quality in St. George

NOW

63 AQI

Moderate air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 6.22 µg/m³

PM₁₀ 20.73 µg/m³

O₃ 0.058 ppm

NO₂ 0.2 ppb

SO₂ 0.1 ppb

CO 0.08 ppm

NH₃ 0.84 µg/m³

NO 0.07 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 6.22 µg/m³

PM₁₀ – 20.73 µg/m³

O₃ – 114.02 µg/m³

NO₂ – 0.43 µg/m³

SO₂ – 0.32 µg/m³

CO – 87.02 µg/m³

NH₃ – 0.84 µg/m³

NO – 0.07 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for St. George

Severe Expected Likely

Red Flag Warning

Red Flag Warning issued June 8 at 10:50PM MDT until June 9 at 10:00PM MDT by NWS Salt Lake City UT

Jun 8, 10:50 PM → Jun 9, 10:00 PM

* AFFECTED AREA...Fire Weather Zone 492 Central Utah West
Desert, Fire Weather Zone 495 Color Country West Desert and
Fire Weather Zone 497 Mojave Desert.

* WINDS...Southwest 15 to 25 mph with gusts up to 40 mph.

* RELATIVE HUMIDITY...As low as 10 percent.

IMPACTS: Critical fire weather conditions are expected. Any
new fire starts or existing fires may spread rapidly.

+ Read More

Updated: Jun 9, 5:20 PM Source: NWS Alert

Severe Future Possible

Fire Weather Watch

Fire Weather Watch issued June 7 at 3:22AM MDT until June 10 at 10:00PM MDT by NWS Salt Lake City UT

Jun 7, 10:00 PM → Jun 10, 10:00 PM

* AFFECTED AREA...Fire Weather Zone 484 Tavaputs Plateau, Fire
Weather Zone 489 San Rafael Swell, Fire Weather Zone 492
Central Utah West Desert, Fire Weather Zone 493 Central Utah
Mountains, Fire Weather Zone 494 Henry Mountains, Fire Weather
Zone 495 Color Country West Desert, Fire Weather Zone 496
Color Country Mountains, Fire Weather Zone 497 Mojave Desert
and Fire Weather Zone 498 Grand Staircase.

* WINDS...Southwest 20 to 30 mph with gusts up to 40 mph.

* RELATIVE HUMIDITY...As low as 7 percent with poor overnight
recovery.

IMPACTS: Critical fire weather conditions are expected. Any
new fire starts or existing fires may spread rapidly.