
NWS JAX Weather Impact Briefing
Isolated Strong and Severe Thunderstorms Expected This Afternoon & Evening Mainly Across Northeast FL and Coastal Southeast Georgia, and Scattered Severe Thunderstorms Possible on Monday For The Entire Area. Read More >
Current conditions at
Keystone Heights Airport (K42J)
Lat: 29.84°NLon: 82.05°WElev: 197ft.
Overcast
68°F
20°C
| Humidity | 94% |
| Wind Speed | S 10 mph |
| Barometer | 29.84 in |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 16 Mar 4:35 am EDT |
Extended Forecast for
3 Miles W Keystone Heights FL
Overnight

Low: 65 °F
Slight Chance
ShowersMonday
High: 81 °F
Severe
Thunderstorms
and WindyMonday Night
Low: 36 °F
Severe
Thunderstorms
and Breezy
then Partly
CloudyTuesday

High: 58 °F
Mostly Sunny
Tuesday Night

Low: 38 °F
Mostly Cloudy
Wednesday

High: 66 °F
Mostly Sunny
Wednesday Night

Low: 44 °F
Partly Cloudy
Thursday

High: 72 °F
Sunny
Thursday Night

Low: 45 °F
Partly Cloudy
Detailed Forecast
Overnight
A 20 percent chance of showers after 5am. Cloudy, with a low around 65. South wind around 11 mph, with gusts as high as 17 mph.
Monday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe. High near 81. Windy, with a south wind 13 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely before 8pm, then a slight chance of showers between 8pm and 9pm. Some of the storms could be severe. Cloudy during the early evening, then gradual clearing, with a low around 36. Breezy, with a northwest wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 58. North wind 8 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
Mostly cloudy, with a low around 38. North wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 86.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles W Keystone Heights FL
29.78°N 82.08°W
29.78°N 82.08°W
2:21 am EDT Mar 16, 2026
4am EDT Mar 16, 2026-6pm EDT Mar 22, 2026


