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

Hazardous Weather Conditions

Current conditions at

Sebastian Municipal Airport (KX26)

Lat: 27.81°NLon: 80.5°WElev: 22ft.

Fair

77°F

25°C

Humidity 100%
Wind Speed W 2 mph
Barometer 29.96 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Aug 5:55 am EDT
Extended Forecast for

Sebastian FL

Heat Advisory August 19, 10:00am until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 102. West wind around 5 mph becoming east in the afternoon.

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 78. South southwest wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.

    High: 88 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 79. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 88. South southwest wind around 5 mph. Chance of precipitation is 60%.

    High: 88 °F

    Mostly Sunny
    then T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 78. South southeast wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 78 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph.

    High: 88 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. South southwest wind around 5 mph.

    Low: 76 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Southwest wind 5 to 10 mph.

    High: 91 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 102. West wind around 5 mph becoming east in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 78. South southwest wind around 5 mph becoming calm in the evening.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 79. South wind around 5 mph. Chance of precipitation is 30%.
Friday
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 88. South southwest wind around 5 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 78. South southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. South southwest wind around 5 mph.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Southwest wind 5 to 10 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. South southwest wind 5 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 91. Southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. South wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 90. Light and variable wind becoming east 5 to 10 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sebastian FL
 27.81°N 80.45°W (Elev. 0 ft)
Last Update:
2:39 am EDT Aug 19, 2026
Forecast Valid:
6am EDT Aug 19, 2026-6pm EDT Aug 25, 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