National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Cecil Airport (KVQQ)

Lat: 30.21°NLon: 81.87°WElev: 62ft.

Fair

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 21 Jun 6:35 am EDT
Extended Forecast for

Glen St. Mary FL

  • Today

    Today: A slight chance of showers between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 91. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 40%.

    High: 91 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 9pm, then a slight chance of showers between 9pm and midnight. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Heavy Rain
    then Mostly
    Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Southwest wind around 6 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. West wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 91. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 40%.
Tonight
Showers and thunderstorms likely before 9pm, then a slight chance of showers between 9pm and midnight. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 75. Southwest wind around 6 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96. West wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Glen St. Mary FL
 30.27°N 82.18°W
Last Update:
5:16 am EDT Jun 21, 2026
Forecast Valid:
6am EDT Jun 21, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation