Weather Forecast: Wednesday to Friday
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Weather Forecast: Wednesday to Friday

PUBLIC WEATHER FORECAST FOR ST. MAARTEN
DATE ISSUED: Tuesday 18th August 2026 @ 18:00 LST (22:00 UTC) 
VALID UNTIL: Wednesday evening (18:00 LST) 19th August 2026
 
WEATHER:
Tonight: Variably cloudy with scattered showers and a chance of isolated thunderstorms.
Wednesday morning through evening: Partly cloudy with isolated showers.
Forecast High: 33°C / 91°F               Forecast Low: 26°C / 79°F
Sunset Today: 6:37 P.M.                   Sunrise Tomorrow: 5:56 A.M.
 
SURFACE WINDS: 
Tonight through Wednesday evening: Easterly to east southeasterly with a light to moderate breeze at 5 to 15 mph; higher gusts are possible.
 
SYNOPSIS: 
Moisture and instability associated with a tropical wave will cause cloudy periods, showers and a chance of isolated thunderstorms. Residents and users of areas prone to flooding should be vigilant.  Additionally, hot and humid conditions will persist. Stay hydrated, keep cool & shaded when possible.
Smooth to slight seas will prevail.
 
SEA CONDITIONS:
STATE:
WAVES/SWELLS:
Sheltered Areas
Smooth to slight
Below 3ft
Open Waters
Slight
2 – 4ft
 
OUTLOOK through Thursday evening: Partly cloudy with light haze and isolated showers.
 
3-DAY FORECAST:
DAY 
Wednesday
Thursday
Friday
WEATHER 
Variably Cloudy,
Scattered Showers, Thunderstorms Possible
Partly Cloudy,
Light Haze,
Isolated Showers Possible
Partly Cloudy,
Light Haze,
Isolated Showers Possible
HIGH TEMP 
33°C / 91°F
33°C / 91°F
33°C / 91°F
LOW TEMP 
26°C / 79°F
28°C / 82°F
28°C / 82°F
SUNRISE 
05:56 AM
05:56 AM
05:56 AM
SUNSET 
06:36 PM
06:35 PM
06:35 PM
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