Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Current conditions at

King Airport, St. Thomas (TIST)

Lat: 18.34° N Lon: 64.97° W Elev: 23 ft.

Partly Cloudy

93°F

34°C

Humidity 56%
Wind Speed NE 9 mph
Barometer 30.00 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 13 Aug 10:53 am AST
Detailed forecast for

St.Thomas...St. John.. and Adjacent Islands

Rest Of Today
Partly cloudy with isolated showers. Hazy. Highs around 94. East winds 10 to 15 mph. Chance of rain 20 percent.
Tonight
Breezy. Hazy in the evening. Partly cloudy with isolated showers in the evening, then variably cloudy with scattered showers after midnight. Lows around 83. Northeast winds 15 to 20 mph with gusts up to 25 mph. Chance of rain 40 percent.
Thursday
Breezy. Partly cloudy. Scattered showers, mainly in the morning. Highs around 93. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent.
Thursday Night
Partly cloudy with isolated showers. Lows around 83. East winds around 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
Friday
Partly cloudy with isolated showers. Highs around 94. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
Friday Night
Variably cloudy with scattered showers in the evening, then mostly cloudy with numerous showers with isolated thunderstorms after midnight. Lows around 83. Chance of rain 60 percent.
Saturday
Mostly cloudy with isolated thunderstorms. Numerous showers, mainly in the morning. Highs around 94. Chance of rain 70 percent.
Saturday Night
Mostly cloudy with scattered showers with isolated thunderstorms. Lows around 83. Chance of rain 50 percent.
Sunday
Breezy. Mostly cloudy with isolated thunderstorms. Numerous showers, mainly in the morning. Highs around 94. Chance of rain 70 percent.
Sunday Night
Breezy. Cloudy with numerous showers with isolated thunderstorms. Lows around 83. Chance of rain 70 percent.
Monday
Breezy. Mostly cloudy with isolated thunderstorms. Numerous showers, mainly in the morning. Highs around 94. Chance of rain 70 percent.
Monday Night
Variably cloudy with scattered showers with isolated thunderstorms. Lows around 83. Chance of rain 50 percent.
Tuesday
Partly cloudy with isolated showers. Highs around 94. Chance of rain 20 percent.



Basemap Options
Click map to change the forecast location
Loading map...
1054 AM AST Wed Aug 13 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database