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

Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Miami, Miami International Airport (KMIA)

Lat: 25.79°NLon: 80.32°WElev: 10ft.

Mostly Cloudy

82°F

28°C

Humidity 55%
Wind Speed SE 13 G 20 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 28 Feb 2:53 pm EST
Extended Forecast for

Key Biscayne FL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. South wind around 11 mph.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 71. South wind 5 to 7 mph becoming north after midnight.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 78. Northeast wind 5 to 13 mph.

    High: 78 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Northeast wind around 14 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers. Mostly sunny, with a high near 77. Breezy, with a northeast wind 15 to 20 mph.

    High: 77 °F

    Slight Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Windy, with a northeast wind 22 to 24 mph. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms and
    Windy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 77. Windy, with an east wind 21 to 24 mph. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers and
    Windy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers. Partly cloudy, with a low around 74. Windy, with an east wind 18 to 22 mph.

    Low: 74 °F

    Chance
    Showers and
    Windy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 78. Breezy, with an east wind around 18 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. South wind around 11 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 71. South wind 5 to 7 mph becoming north after midnight.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 78. Northeast wind 5 to 13 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Northeast wind around 14 mph. Chance of precipitation is 40%.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 77. Breezy, with a northeast wind 15 to 20 mph.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Windy, with a northeast wind 22 to 24 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77. Windy, with an east wind 21 to 24 mph. Chance of precipitation is 40%.
Tuesday Night
A 50 percent chance of showers. Partly cloudy, with a low around 74. Windy, with an east wind 18 to 22 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 78. Breezy, with an east wind around 18 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 75. Windy.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 78. Breezy.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 75. Breezy.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 79. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Key Biscayne FL
 25.69°N 80.17°W
Last Update:
1:32 pm EST Feb 28, 2026
Forecast Valid:
3pm EST Feb 28, 2026-6pm EST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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