Current conditions at

Keystone Heights Airport (K42J)

Lat: 29.84°NLon: 82.05°WElev: 197ft.

Mostly Cloudy

77°F

25°C

Humidity 94%
Wind Speed S 6 mph
Barometer 30.13 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 12 Jul 12:15 am EDT
Extended Forecast for

4 Miles SW Middleburg FL

Heat Advisory July 12, 11:00am until July 12, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 75. Light southwest wind.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 5 to 10 mph, with gusts as high as 16 mph.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 75. Southwest wind 5 to 9 mph.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers, then showers and thunderstorms likely after 11am.  Partly sunny and hot, with a high near 95. Heat index values as high as 106. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 70%.

    High: 95 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 8pm.  Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph, with gusts as high as 16 mph.  Chance of precipitation is 60%.

    Low: 73 °F

    T-storms
    Likely then
    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Mostly sunny and hot, with a high near 96. Chance of precipitation is 30%.

    High: 96 °F

    Chance
    T-storms

  • 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

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday 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
Mostly clear, with a low around 75. Light southwest wind.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Southwest wind 5 to 10 mph, with gusts as high as 16 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 75. Southwest wind 5 to 9 mph.
Monday
A chance of showers, then showers and thunderstorms likely after 11am. Partly sunny and hot, with a high near 95. Heat index values as high as 106. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 73. Southwest wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 96. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Middleburg FL
 30°N 81.95°W
12:17 am EDT Jul 12, 2026
12am EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
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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