



Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes
Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >
NWS Forecast for: Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N (AMZ711) Issued by: National Weather Service San Juan, PR Last Update: 926 AM AST Sat Jun 21 2025 | |
Rest Of Today: East winds around 15 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: east 4 feet at 7 seconds and northeast 1 foot at 10 seconds. Isolated showers. Tonight: East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: east 4 feet at 7 seconds and northeast 1 foot at 10 seconds. Sunday: East winds 10 to 15 knots with gusts up to 25 knots. Seas around 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 7 seconds and northeast 1 foot at 9 seconds. Scattered showers in the morning. Sunday Night: East winds 10 to 15 knots with gusts up to 25 knots. Seas around 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 7 seconds and northeast 1 foot at 10 seconds. Monday: East winds 15 to 20 knots with gusts up to 30 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: east 4 feet at 6 seconds and northeast 2 feet at 10 seconds. Monday Night: East winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: east 5 feet at 6 seconds and northeast 2 feet at 11 seconds. Tuesday: East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Tuesday Night: East winds 15 to 20 knots. Seas around 5 feet, occasionally to 6 feet. Wednesday: East winds 15 to 20 knots. Seas around 5 feet, occasionally to 6 feet. Wednesday Night: East winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. | |
Zone Forecast: Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N (AMZ711) | |
Visit your local NWS office at: https://www.weather.gov/sju |