Today | Weather | Wednesday, August 12, 2026

Active Weather Warnings

Flood Watch

Weather in Lake Havasu City, Arizona

04:50 AM

Now

90° F

Feels Like 88°

Precipitation 16 %

Wind 9 mph

Humidity 45 %

Today

Day 102°

Night 82°

Precipitation 25 %

Wind 11 mph

UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Lake Havasu City Weather Forecast Updated

8 minutes ago

Last updated on August 12, 2026 at 4:41 AM

Weather Forecast History

Last Year's Weather on This Day (August 12, 2025)

Day

113°

Night

91°

Air Quality in Lake Havasu City

NOW

51 AQI

Moderate air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 12.62 µg/m³

PM₁₀ 52.5 µg/m³

O₃ 0.034 ppm

NO₂ 1.2 ppb

SO₂ 0.3 ppb

CO 0.10 ppm

NH₃ 1.01 µg/m³

NO 0 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 – 12.62 µg/m³

PM₁₀ – 52.5 µg/m³

O₃ – 66.74 µg/m³

NO₂ – 2.27 µg/m³

SO₂ – 0.8 µg/m³

CO – 116.5 µg/m³

NH₃ – 1.01 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Lake Havasu City

Severe Future Possible

Flood Watch

Flood Watch issued August 12 at 1:24AM PDT until August 13 at 12:00AM PDT by NWS Las Vegas NV

Aug 12, 1:00 PM → Aug 13, 1:00 AM

WHAT: Flash flooding caused by excessive rainfall is possible.

WHERE: A portion of northwest Arizona, including the following
areas, Hualapai Mountains, Lake Havasu and Fort Mohave, Northwest
Deserts and Northwest Plateau.

WHEN: From noon MST today through this evening.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Low-water
crossings may be flooded.

ADDITIONAL DETAILS:
- Persistent Storm chances will lead to locally heavy rainfall that
can lead to flash flooding across the watch area
- http://www.weather.gov/safety/flood

+ Read More

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Updated: Aug 12, 5:41 AM Source: NWS Alert