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.

Fair

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Last update 3 Jul 2:55 am EDT
Extended Forecast for

Keystone Heights FL

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Patchy Fog

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 94. Heat index values as high as 105. Calm wind becoming northeast 5 to 7 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 94 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 74. East wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 15 mph.

    Low: 74 °F

    Chance
    T-storms then
    Patchy Fog

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms after 4pm. Patchy fog before 8am. Otherwise, increasing clouds and hot, with a high near 96. Heat index values as high as 107. Calm wind becoming north around 5 mph in the afternoon.

    High: 96 °F

    Patchy Fog
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 75. Southeast wind 3 to 7 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 95. Chance of precipitation is 50%.

    High: 95 °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 75.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 73. Calm wind.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 94. Heat index values as high as 105. Calm wind becoming northeast 5 to 7 mph in the afternoon. Winds could gust as high as 15 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 74. East wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 15 mph.
Independence Day
A 30 percent chance of showers and thunderstorms after 4pm. Patchy fog before 8am. Otherwise, increasing clouds and hot, with a high near 96. Heat index values as high as 107. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 75. Southeast wind 3 to 7 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 95. Chance of precipitation is 50%.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
Keystone Heights FL
 29.8°N 82.02°W
Last Update:
2:21 am EDT Jul 3, 2026
Forecast Valid:
3am EDT Jul 3, 2026-6pm EDT Jul 9, 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