News Headlines
- National Weather Service Jacksonville Updated Weather Briefing
- Public Information Statement on Flood Stage Changes to Black Creek near Middleburg River Gage
- Heading to the Beach? Learn About Rip Current Hazards and Beach Safety
- El Nino Advisory Issued
- Update on National Hurricane Center Products and Services for 2026
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 5 mph |
| Barometer | 30.06 in |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 4 Aug 11:35 pm EDT |
Extended Forecast for
Keystone Heights FL
Tonight
Low: 73 °F
Partly Cloudy
Wednesday
High: 92 °F
Mostly Sunny
then Chance
T-stormsWednesday Night
Low: 73 °F
T-storms
Likely then
Mostly CloudyThursday
High: 92 °F
Slight Chance
T-storms then
T-storms
LikelyThursday Night
Low: 74 °F
T-storms
Likely then
Partly CloudyFriday
High: 91 °F
T-storms
LikelyFriday Night
Low: 73 °F
T-storms
Likely then
Partly CloudySaturday
High: 93 °F
Slight Chance
T-storms then
T-storms
LikelySaturday Night
Low: 74 °F
T-storms
Likely then
Slight Chance
T-storms
Detailed Forecast
Tonight
Partly cloudy, with a low around 73. South wind around 5 mph becoming calm after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 92. Heat index values as high as 102. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 92. Heat index values as high as 103. Calm wind becoming east 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 74. East wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.
Friday
A chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Keystone Heights FL
29.78°N 82.03°W
29.78°N 82.03°W
8:16 pm EDT Aug 4, 2026
11pm EDT Aug 4, 2026-6pm EDT Aug 11, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
