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

Hazardous Weather Conditions

Current conditions at

Orlando / Sanford Airport (KSFB)

Lat: 28.78°NLon: 81.25°WElev: 56ft.

Partly Cloudy

83°F

28°C

Humidity 79%
Wind Speed NW 5 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 20 Aug 10:53 am EDT
Extended Forecast for

Lake Mary FL

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

    NOW until 7:00pm Thu

    Heat Advisory

  • Today

    High: 94 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Sunny then
    T-storms
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 76. South southwest wind around 5 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. West southwest wind 5 to 10 mph.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 76. West southwest wind around 5 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of thunderstorms, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 91. West southwest wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 3pm. Mostly sunny, with a high near 94. Heat index values as high as 107. Calm wind becoming west southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. Calm wind.
Friday
Showers and thunderstorms likely, mainly after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 76. South southwest wind around 5 mph. Chance of precipitation is 30%.
Saturday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. West southwest wind 5 to 10 mph.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 76. West southwest wind around 5 mph. Chance of precipitation is 30%.
Sunday
A slight chance of thunderstorms, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 91. West southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Calm wind.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Southwest wind around 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming south southwest around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. South southeast wind around 5 mph becoming calm.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming south southwest around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Mary FL
 28.76°N 81.33°W (Elev. 69 ft)
Last Update:
9:51 am EDT Aug 20, 2026
Forecast Valid:
11am EDT Aug 20, 2026-6pm EDT Aug 26, 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