🔥 Trending Phoenix Weather: Dangerous Heat and Storms Expected This Week

Here's the weather forecast for Phoenix, Arizona, based on current information as of July 21, 2026:

Current Conditions and Short-Term Outlook

Scattered showers and thunderstorms are expected to develop over the high terrain northeast of Phoenix. An outflow boundary is anticipated to descend into the lower deserts in the early evening, potentially triggering new storms. There is a 20-30% chance of storms for the Phoenix Metro area this evening ¹. The primary concerns associated with these storms will be discussed further below.

Detailed Forecast for the Coming Days

Phoenix typically experiences hot and dry conditions, but the current forecast indicates a possibility of precipitation and varying temperatures.

Tomorrow's Forecast

Detailed forecasts for tomorrow in Phoenix are available, providing information on wind, precipitation, air temperature, clouds, and atmospheric pressure ⁵. Weather maps are also available to visualize tomorrow's conditions ⁴.

Extended Forecasts

Several sources provide extended weather outlooks for Phoenix:

• 10-Day Forecast: 12NEWS.com offers a 10-day weather forecast for Phoenix and surrounding areas ².
• 15-Day Forecast: MyForecast.com provides a detailed 15-day weather forecast, including daily specifics and outlooks up to 30 days ⁶.
• 16-Day Forecast: The Weather Outlook offers a 16-day forecast, including daily views, maps, and meteograms for accurate predictions ⁷.
• 20-Day Forecast: Weather365.com provides a 20-day weather forecast with detailed conditions, rainfall, and air quality information ³.

These extended forecasts are crucial for planning and preparation, especially given the potential for storm activity.

Key Concerns During Storms

When storms are in the forecast for Phoenix, the main concerns typically include:

• Heavy Rainfall: Even short bursts of rain can lead to localized flooding, especially in low-lying areas and washes.
• Strong Winds: Downbursts from thunderstorms can cause significant wind damage, including downed trees and power lines.
• Dust Storms (Haboobs): Outflow boundaries from distant storms can kick up large walls of dust, severely reducing visibility.
• Lightning: Thunderstorms always carry the risk of dangerous lightning strikes.

Residents are advised to stay informed through local weather alerts and take appropriate precautions during periods of active weather. Real-time radar information is also available through services like WeatherAZ.com to track storm movements ⁸.