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

    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.

    Low: 65 °F

    Slight Chance
    Showers

  • Monday

    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.

    High: 81 °F

    Severe
    Thunderstorms
    and Windy

  • Monday Night

    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.

    Low: 36 °F

    Severe
    Thunderstorms
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. North wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. North wind 3 to 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45.

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Keystone Heights FL
 29.78°N 82.08°W
2:21 am EDT Mar 16, 2026
4am EDT Mar 16, 2026-6pm EDT Mar 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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