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 SW 3 mph
Barometer 29.99 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Aug 12:55 am EDT
Extended Forecast for

3 Miles NNE Grant FL

Heat Advisory August 20, 10:00am until August 20, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 77. West wind around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 106. West wind 5 to 10 mph becoming east in the afternoon.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 106. Southwest wind 5 to 10 mph becoming south southeast in the afternoon.

    High: 93 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 77. South southwest wind around 5 mph.

    Low: 77 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 93. Southwest wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. South southwest wind 5 to 10 mph.

    Low: 77 °F

    Chance
    T-storms

  • Sunday

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

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. South southwest wind around 5 mph.

    Low: 77 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 77. West wind around 5 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 106. West wind 5 to 10 mph becoming east in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 106. Southwest wind 5 to 10 mph becoming south southeast in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 77. South southwest wind around 5 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 93. Southwest wind 5 to 10 mph. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. South southwest wind 5 to 10 mph.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Southwest wind 5 to 10 mph becoming southeast in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. South southwest wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. South southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78. South wind around 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. South southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78. East southeast wind around 5 mph.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. South southwest wind 5 to 10 mph becoming east in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Grant FL
 27.97°N 80.51°W (Elev. 13 ft)
Last Update:
1:14 am EDT Aug 20, 2026
Forecast Valid:
1am EDT Aug 20, 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