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

Keystone Heights Airport (K42J)

Lat: 29.84°NLon: 82.05°WElev: 197ft.

A Few Clouds

79°F

26°C

Humidity 89%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 11 Sep 8:15 pm EDT
Extended Forecast for

4 Miles NNW Keystone Heights FL

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am. Mostly cloudy, with a low around 73. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 92. Heat index values as high as 105. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Chance
    Showers then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 73. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Patchy Fog

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Patchy fog before 11am. Otherwise, increasing clouds, with a high near 93. Heat index values as high as 109. Calm wind becoming west around 6 mph in the afternoon.

    High: 93 °F

    Patchy Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

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

    High: 94 °F

    Sunny then
    T-storms
    Likely

  • Monday Night

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

    Low: 75 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Breezy.

    High: 91 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am. Mostly cloudy, with a low around 73. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.
Saturday
A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 92. Heat index values as high as 105. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 73. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Patchy fog before 11am. Otherwise, increasing clouds, with a high near 93. Heat index values as high as 109. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 30%.
Monday
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Breezy.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Breezy.
Wednesday Night
A chance of thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Breezy.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Keystone Heights FL
 29.83°N 82.07°W
Last Update:
6:11 pm EDT Sep 11, 2026
Forecast Valid:
8pm EDT Sep 11, 2026-6pm EDT Sep 18, 2026
 
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Additional Resources

Radar & Satellite Image

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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