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.

Partly Cloudy

84°F

29°C

Humidity 74%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 20 Sep 10:55 am EDT
Extended Forecast for

3 Miles WSW Keystone Heights FL

  • Today

    Today: Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 88. Northeast wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Partly Sunny
    then T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 72. East wind 5 to 9 mph becoming light in the evening.

    Low: 72 °F

    Chance
    T-storms then
    Patchy Fog

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 89. Light north wind becoming northeast 5 to 10 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Patchy Fog
    then Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 72. East wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Northeast wind 6 to 10 mph. Chance of precipitation is 60%.

    High: 90 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 70%.

    High: 89 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 88. Northeast wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 72. East wind 5 to 9 mph becoming light in the evening.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 89. Light north wind becoming northeast 5 to 10 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 72. East wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 60%.
Tuesday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Northeast wind 6 to 10 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 67.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Keystone Heights FL
 29.76°N 82.08°W
Last Update:
10:31 am EDT Sep 20, 2026
Forecast Valid:
10am EDT Sep 20, 2026-6pm EDT Sep 26, 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