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

77°F

25°C

Humidity 100%
Wind Speed W 5 mph
Barometer 30.07 in
Dewpoint 77°F (25°C)
Visibility 7.00 mi
Heat Index78°F (26°C)
Last update 23 Jun 3:35 am EDT
Extended Forecast for

Keystone Heights FL

  • Overnight

    Overnight: Partly cloudy, with a low around 75. Southwest wind around 5 mph.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 105. Breezy, with a west wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 74. West wind 6 to 11 mph, with gusts as high as 17 mph.

    Low: 74 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 101. West wind 3 to 7 mph.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. Northwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: 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

  • Friday Night

    Friday 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
Partly cloudy, with a low around 75. Southwest wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 105. Breezy, with a west wind 7 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 74. West wind 6 to 11 mph, with gusts as high as 17 mph.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 101. West wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 73. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Thursday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 97.
Saturday Night
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Keystone Heights FL
 29.78°N 82.03°W
Last Update:
2:21 am EDT Jun 23, 2026
Forecast Valid:
3am EDT Jun 23, 2026-6pm EDT Jun 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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