Havasu Falls Arizona 2025 Weather Forecast. The best weather at havasu is found between march and november, and spring and fall are ideal if you are hiking in and out. Weather.com brings you the most accurate monthly weather forecast for lake havasu city, az with average/record and high/low temperatures, precipitation and more.
Know what’s coming with accuweather’s extended daily forecasts for havasu falls, az. September and october will be cooler than normal in the east and warmer than normal in.