Today | Weather | Wednesday, March 18, 2026
Active Weather Warnings

Weather in Lake Havasu City, Arizona

04:42 AM
Now
Night
66° F
Feels Like 63°
Precipitation 0 %
Wind 6 mph
Humidity 31 %
Today
Hot Day
Day 100°
Night 64°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 6

Lake Havasu City Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)

Day

72°

Night

52°

Air Quality in Lake Havasu City

NOW
41 AQI
Good air quality Dominant pollutant: PM10

Pollutant Concentrations:

PM2.5 7.87 µg/m³
PM10 43.89 µg/m³
O3 0.028 ppm
NO2 1.5 ppb
SO2 0 ppb
CO 0.10 ppm
NH3 5.37 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)
PM2.57.87 µg/m³
PM1043.89 µg/m³
O354.37 µg/m³
NO22.82 µg/m³
SO20.09 µg/m³
CO116.33 µg/m³
NH35.37 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Lake Havasu City

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued March 18 at 2:37AM PDT until March 22 at 8:00PM PDT by NWS Las Vegas NV
Mar 18, 12:00 PM Mar 22, 9:00 PM
WHAT: Dangerously hot temperatures climbing to near-30 degrees
above seasonal normals.

WHERE: Portions of northwest Arizona, southeast California, and
southern Nevada.

WHEN: From 11 AM PDT /11 AM MST/ this morning to 8 PM PDT /8 PM
MST/ Sunday.

IMPACTS: Heat-related illnesses increase significantly during
extreme heat events.

ADDITIONAL DETAILS: Extreme early-season heat coupled with high
tourism rates will make this heat very dangerous, particularly for
those not acclimated to the heat and/or traveling from cooler
climates. Numerous daily and monthly heat records are in jeopardy
through at least Sunday.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose-fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, 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 9 1 1. Monitor the latest forecasts and warnings for updates.
Updated: Mar 18, 4:34 AM Source: NWS Alert