Marine Weather Net

Smithtown, NY Weather Forecast




Smithtown, New York

 Lat: 40.86N, Lon: 73.21W

Current Conditions Updated: 956 AM EDT SUN JUL 13 2025

Overcast
Temp: 76°F
  • Humidity:
  • 81%
  • Winds:
  • 3 MPH N
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.12 in.
  • Dewpoint:
  • 70°F
  • Heat index:
  • 77°F

  • Sunrise:
  • 5:30 AM EDT
  • Sunset:
  • 8:23 PM EDT
  • Moonrise:
  • 10:25 PM EDT
  • Moonset:
  • 8:15 AM EDT

TODAY

PARTLY SUNNY
Hi: 79°F
Lo: 75°F

MONDAY

PARTLY SUNNY
Hi: 81°F
Lo: 75°F
Precip: 40%

TUESDAY

PARTLY SUNNY
Hi: 89°F
Lo: 71°F
Precip: 40%

WEDNESDAY

MOSTLY SUNNY
Hi: 89°F
Lo: 75°F
Weather Forecast In Detail:
Forecast Issued: 653 AM EDT Sun Jul 13 2025

Today...Areas of fog this morning. Cloudy with areas of drizzle this morning, then partly sunny this afternoon. Highs in the upper 70s. East winds 5 to 10 mph.
Tonight...Mostly cloudy with patchy drizzle. Patchy fog. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph.
Monday...Patchy fog in the morning. Mostly cloudy in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Some thunderstorms May produce heavy rainfall in the afternoon. Humid with highs in the lower 80s. Southeast winds 5 to 10 mph. Chance of rain 40 percent.
Monday Night...Mostly cloudy. A chance of showers and thunderstorms. Some thunderstorms May produce heavy rainfall in the evening. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 40 percent.
Tuesday...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers and thunderstorms. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 40 percent. Heat index values in the mid 90s in the afternoon.
Tuesday Night...Partly cloudy. Lows in the lower 70s.
Wednesday...Mostly sunny. Highs in the upper 80s. Heat index values in the upper 90s.
Wednesday Night...Mostly cloudy with a chance of showers. Lows in the mid 70s. Chance of rain 30 percent.
Thursday...Partly sunny. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent. Heat index values up to 100.
Thursday Night...Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 70s. Chance of rain 50 percent.
Friday...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 30 percent. Heat index values up to 100.
Friday Night...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. Chance of rain 30 percent.
Saturday...Partly sunny. A chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.
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