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

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Hazardous Weather Conditions

Current conditions at

King Airport, St. Thomas (TIST)

Lat: 18.34°NLon: 64.97°WElev: 23ft.

Fair

82°F

28°C

Humidity 79%
Wind Speed E 6 mph
Barometer 30.02 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 9 Aug 11:53 pm AST
Extended Forecast for

Charlotte Amalie VI

  • Overnight

    Overnight: Showers likely. Mostly cloudy, with a low around 78. East southeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 78 °F

    Showers
    Likely

  • Sunday

    Sunday: Scattered showers. Partly sunny, with a high near 89. East southeast wind around 14 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    High: 89 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 79. East wind around 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers. Mostly sunny, with a high near 89. East wind 14 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 89 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 79. East wind 16 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 90. East wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 90 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 79. East wind 11 to 14 mph.

    Low: 79 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89. East northeast wind 11 to 13 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 79. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    Low: 79 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Showers likely. Mostly cloudy, with a low around 78. East southeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday
Scattered showers. Partly sunny, with a high near 89. East southeast wind around 14 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 79. East wind around 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Monday
Scattered showers. Mostly sunny, with a high near 89. East wind 14 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Monday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 79. East wind 16 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 90. East wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 79. East wind 11 to 14 mph.
Wednesday
Sunny, with a high near 89. East northeast wind 11 to 13 mph.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 79. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Thursday
Scattered showers. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 79.
Friday
Mostly sunny, with a high near 88.
Friday Night
Scattered showers. Mostly cloudy, with a low around 78. Chance of precipitation is 50%.
Saturday
Showers likely. Mostly cloudy, with a high near 89. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charlotte Amalie VI
 18.35°N 64.93°W (Elev. 407 ft)
Last Update:
3:37 pm AST Aug 9, 2025
Forecast Valid:
12am AST Aug 10, 2025-6pm AST Aug 16, 2025
 
Forecast Discussion
 
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Additional Resources

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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