Marine Weather Net

Smithtown, NY Weather Forecast




Smithtown, New York

 Lat: 40.86N, Lon: 73.21W

Current Conditions Updated: 256 PM EDT SUN JUL 26 2026

Mostly Clear
Temp: 78°F
  • Humidity:
  • 49%
  • Winds:
  • N/A MPH N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.86 in.
  • Dewpoint:
  • 58°F
  • Heat index:
  • N/A

  • Sunrise:
  • 5:42 AM EDT
  • Sunset:
  • 8:13 PM EDT
  • Moonrise:
  • 6:43 PM EDT
  • Moonset:
  • 2:30 AM EDT

THIS AFTERNOON

SUNNY

Hi: 81°F
Lo: 65°F

MONDAY

PARTLY SUNNY
Hi: 81°F
Lo: 67°F
Precip: 20%

TUESDAY

CHANCE OF T-STORM
Hi: 79°F
Lo: 67°F
Precip: 70%

WEDNESDAY

CHANCE OF T-STORM
Hi: 75°F
Lo: 65°F
Precip: 90%
Weather Forecast In Detail:
Forecast Issued: 246 PM EDT Sun Jul 26 2026

This Afternoon...Sunny. Highs in the lower 80s. East winds around 5 mph.
Tonight...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. South winds around 5 mph.
Monday...Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 20 percent.
Monday Night...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 50 percent.
Tuesday...A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the upper 70s. South winds 10 to 15 mph. Chance of rain 70 percent.
Tuesday Night...Showers with a chance of thunderstorms in the evening, then showers after midnight. Lows in the upper 60s. Chance of rain 90 percent.
Wednesday...Showers in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 90 percent.
Wednesday Night...Showers with a chance of thunderstorms. Lows in the mid 60s. Chance of rain 90 percent.
Thursday...Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 40 percent.
Thursday Night...Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the mid 60s. Chance of rain 40 percent.
Friday...Mostly sunny. Highs in the lower 80s.
Friday Night...Mostly clear. Lows in the upper 60s.
Saturday...Mostly sunny. Highs in the lower 80s.
Saturday Night...Mostly cloudy. Lows around 70.
Sunday...Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.
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