Today | Weather | Tuesday, August 11, 2026

Active Weather Warnings

Air Quality Alert

Weather in Surprise, Arizona

07:38 AM

Now

82° F

Feels Like 86°

Precipitation 6 %

Wind 9 mph

UV Index (0 - 11+) 3

Humidity 56 %

Today

Day 106°

Night 81°

Precipitation 55 %

Wind 10 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.

Surprise Weather Forecast Updated

1 minute ago

Last updated on August 11, 2026 at 7:37 AM

Weather Forecast History

Last Year's Weather on This Day (August 11, 2025)

Day

111°

Night

86°

Wind

10 mph

Precipitation

1 %

Air Quality in Surprise

NOW

42 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 10.17 µg/m³

PM₁₀ 43.78 µg/m³

O₃ 0.030 ppm

NO₂ 0.3 ppb

SO₂ 0 ppb

CO 0.09 ppm

NH₃ 0.57 µg/m³

NO 0.01 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 – 10.17 µg/m³

PM₁₀ – 43.78 µg/m³

O₃ – 59.55 µg/m³

NO₂ – 0.48 µg/m³

SO₂ – 0.06 µg/m³

CO – 104.3 µg/m³

NH₃ – 0.57 µg/m³

NO – 0.01 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Surprise

Air Quality Alert

Air Quality Alert issued August 10 at 9:56AM MST by NWS Phoenix AZ

Aug 10, 10:56 AM → Aug 11, 10:00 PM

AQAPSR

The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area today through
Tuesday.

This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.

You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.

For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.

Updated: Aug 11, 8:37 AM Source: NWS Alert