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

Hazardous Weather Conditions

Current conditions at

Keystone Airpark (K42J)

Lat: 29.84°NLon: 82.05°WElev: 197ft.

Fair

N/A

Humidity NA
Wind Speed Calm
Barometer 30.04 in
Dewpoint N/A
Visibility 7.00 mi
Last update 13 Aug 10:35 am EDT
Extended Forecast for

Grandin FL

Heat Advisory August 13, 11:00am until August 13, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Showers and thunderstorms likely, mainly after 5pm. Increasing clouds and hot, with a high near 95. Heat index values as high as 109. South wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 95 °F

    Sunny then
    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 75. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    T-storms
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 95. Heat index values as high as 111. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny and hot, with a high near 96. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 96 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

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

    Low: 76 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 70%.

    High: 94 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 70%.

    High: 92 °F

    Chance
    T-storms then
    T-storms
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 5pm. Increasing clouds and hot, with a high near 95. Heat index values as high as 109. South wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 75. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 95. Heat index values as high as 111. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southwest wind 5 to 7 mph becoming calm after midnight.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny and hot, with a high near 96. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 93. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 74. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Grandin FL
 29.72°N 81.93°W
Last Update:
8:01 am EDT Aug 13, 2025
Forecast Valid:
10am EDT Aug 13, 2025-6pm EDT Aug 19, 2025
 
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