National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Homestead Air Reserve Base (KHST)

Lat: 25.49°NLon: 80.37°WElev: 16ft.

Fair

80°F

27°C

Humidity 79%
Wind Speed Calm
Barometer 30.00 in (1016.2 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 19 Aug 9:55 pm EDT
Extended Forecast for

North Key Largo FL

  • Tonight

    Tonight: Partly cloudy, with a low around 81. West wind 5 to 10 mph.

    Low: 81 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 112. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 82. Southwest wind 5 to 10 mph.

    Low: 82 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 93. Heat index values as high as 110. South wind 5 to 10 mph.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 82. South wind 5 to 10 mph.

    Low: 82 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 82.

    Low: 82 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 20%.

    Low: 81 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 81. West wind 5 to 10 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 112. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 82. Southwest wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 93. Heat index values as high as 110. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 82. South wind 5 to 10 mph.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 82.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 20%.
Monday
A slight chance of showers. Sunny, with a high near 93. Chance of precipitation is 10%.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 82. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 82. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
North Key Largo FL
 25.27°N 80.32°W (Elev. 3 ft)
Last Update:
10:15 pm EDT Aug 19, 2026
Forecast Valid:
10pm EDT Aug 19, 2026-6pm EDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation