Get the latest USA weather updates for August 20, 2025, as Click USA News brings you a detailed forecast for major cities across the nation. From dangerous rip currents on the East Coast to blistering heat in the West, here’s everything you need to know to stay safe and prepared.

East Coast: Hurricane Erin Threatens Coastal Areas

Hurricane Erin, a Category 2 storm as of August 20, 2025, is stirring up hazardous conditions along the East Coast. With winds extending up to 390 miles and expected to widen to 630 miles by Thursday, the storm is causing life-threatening surf and rip currents from North Carolina to New England. Coastal flooding is a concern, especially for the Outer Banks of North Carolina, where tropical storm conditions are expected through Thursday.

New York City, NY

• Temperature: High of 67°F, low of 66°F
• Conditions: Partly cloudy with a chance of showers due to a stationary front and Hurricane Erin’s influence. A marginal risk of excessive rainfall may bring heavy showers Wednesday night.
• Alerts: High rip current risk along beaches. Avoid ocean swimming.
• Air Quality: Moderate; sensitive groups should stay cautious due to humidity.

Washington, D.C.

• Temperature: High of 68°F, low of 65°F
• Conditions: Warm and humid with scattered clouds. Afternoon thunderstorms are possible due to a nearby front.
• Alerts: Dangerous rip currents along nearby coastal areas.
• Tip: High humidity may limit overnight cooling, so stay hydrated.

Philadelphia, PA

• Temperature: High of 70°F, low of 66°F
• Conditions: Mostly cloudy with a chance of showers. Slow-moving thunderstorms pose a marginal risk of excessive rainfall.
• Alerts: Rip current warnings for coastal regions.
• Note: Humidity may increase heat stress, so take precautions.

Atlanta, GA

• Temperature: High of 73°F, low of 68°F
• Conditions: Warm and humid with increasing clouds. Afternoon storms are possible, though heavy rainfall risks have lessened.
• Alerts: Watch for isolated flash flooding in low-lying areas.

Raleigh, NC

• Temperature: High of 71°F, low of 67°F
• Conditions: Cloudy with a high chance of showers due to Hurricane Erin’s impact. Coastal areas face significant flooding risks.
• Alerts: Tropical storm conditions near the Outer Banks, with potential for severe beach erosion.

Midwest: Varied Weather with Cooler Air Approaching

The Midwest is experiencing a mix of warm, humid conditions and the promise of cooler air by the weekend, driven by an incoming cold front.

Chicago, IL

• Temperature: High of 72°F, low of 68°F
• Conditions: Partly sunny with moderate humidity. Scattered thunderstorms are possible, with a marginal risk of excessive rainfall.
• Outlook: Expect cooler, fall-like temperatures by the weekend.

Columbus, OH

• Temperature: High of 80°F, low of 73°F
• Conditions: Warm and humid with mostly clear skies. A slight chance of afternoon showers is possible.
• Note: Monitor for potential thunderstorms as moisture from a nearby front could trigger activity.

South: Heat Subsides, Thunderstorms Continue

The Mid-South is seeing some relief from extreme heat, but slow-moving thunderstorms could lead to flash flooding in certain areas.

Houston, TX

• Temperature: High of 80°F, low of 76°F
• Conditions: Scattered clouds with a chance of thunderstorms. Recent storms in nearby areas brought half-inch hailstones.
• Alerts: Marginal risk of excessive rainfall through Thursday.

Dallas, TX

• Temperature: High of 92°F, low of 84°F
• Conditions: Clear skies giving way to scattered clouds. Humidity is rising, with temperatures slightly cooler than recent highs of 96°F.
• Outlook: Warm and humid conditions persist with a slight chance of showers.

San Antonio, TX

• Temperature: High of 79°F, low of 75°F
• Conditions: Partly cloudy with isolated thunderstorms possible. Widespread heavy rain risks have decreased.
• Tip: Stay alert for sudden weather shifts due to monsoon-like activity.

West: Extreme Heat and Monsoon Threats

The West is battling intense heat, particularly in the Desert Southwest, while monsoon-like thunderstorms bring flash flood risks to Arizona.

Phoenix, AZ

• Temperature: High of 101°F, low of 88°F
• Conditions: Dangerously hot with clear skies. High heat index values pose significant health risks.
• Alerts: Marginal risk of excessive rainfall from monsoon activity in eastern Arizona.
• Tip: Avoid outdoor activities during peak heat and stay hydrated.

Los Angeles, CA

• Temperature: High of 74°F, low of 68°F
• Conditions: Mostly sunny with moderate, comfortable temperatures.
• Outlook: Stable weather with no major alerts, though heat may build later in the week.

San Diego, CA

• Temperature: High of 70°F, low of 66°F
• Conditions: Partly cloudy with pleasant coastal temperatures.
• Note: Cooler than inland areas like Phoenix, with no immediate alerts.

Hawaii: Steady Trade Winds

Honolulu, HI

• Temperature: High of 85°F, low of 78°F
• Conditions: Moderately breezy with a typical trade wind pattern. Drier conditions dominate, with rainfall limited to windward and mauka areas.
• Outlook: Stable weather expected, with a slight chance of increased moisture by the weekend.

National Weather Overview

• Hurricane Erin: Continues to threaten the East Coast with tropical storm conditions in North Carolina and potential impacts in Virginia. Dangerous surf and rip currents persist through Friday.
• Heatwave: The Desert Southwest and northern High Plains face extreme heat, with Phoenix seeing dangerous heat index levels.
• Thunderstorms: Slow-moving storms may cause flash flooding in the Southwest, Southeast, and parts of the Northeast.
• Cooler Air: A cold front will bring fall-like temperatures to the Midwest and Plains by the weekend.

Safety Tips for August 20, 2025

• East Coast: Avoid swimming due to life-threatening rip currents. Follow local evacuation orders, especially in coastal North Carolina.
• Western Cities: Limit outdoor activities during peak heat and monitor for flash flood warnings in Arizona.
• General Advice: Stay updated with real-time weather alerts via apps like AccuWeather or The Weather Channel.

Stay Informed with Click USA News

For up-to-date USA weather updates, safety tips, and breaking news, visit Click USA News (www.clickusanews.com). We deliver timely forecasts and alerts for major U.S. cities to keep you prepared. Follow us for daily updates on weather trends and more.