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

79°F

26°C

Humidity 100%
Wind Speed S 2 mph
Barometer 30.05 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 12 Aug 2:35 am EDT
Extended Forecast for

4 Miles SW Sebastian FL

Heat Advisory August 12, 10:00am until August 12, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 106. Calm wind becoming west around 5 mph in the morning.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. South southeast wind around 5 mph becoming west southwest after midnight.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Sunny and hot, with a high near 95. Heat index values as high as 107. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. Southeast wind 5 to 10 mph becoming light south southeast after midnight.

    Low: 76 °F

    Chance
    T-storms then
    Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm after midnight.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 106. Calm wind becoming west around 5 mph in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. South southeast wind around 5 mph becoming west southwest after midnight.
Thursday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Sunny and hot, with a high near 95. Heat index values as high as 107. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. South wind around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. Southeast wind 5 to 10 mph becoming light south southeast after midnight.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 94. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. East southeast wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. West southwest wind around 5 mph becoming northeast in the afternoon.
Monday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 76. East southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming southeast around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Sebastian FL
 27.75°N 80.54°W (Elev. 20 ft)
Last Update:
2:39 am EDT Aug 12, 2026
Forecast Valid:
2am EDT Aug 12, 2026-6pm EDT Aug 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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