Marine Weather Net

Smithtown, NY Weather Forecast




Smithtown, New York

 Lat: 40.86N, Lon: 73.21W

Current Conditions Updated: 256 PM EST WED FEB 18 2026

Fair
Temp: 39°F
  • Humidity:
  • 95%
  • Winds:
  • 6 MPH NNE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.75 in.
  • Dewpoint:
  • 38°F
  • Heat index:
  • 39°F

  • Sunrise:
  • 6:44 AM EST
  • Sunset:
  • 5:27 PM EST
  • Moonrise:
  • 7:17 AM EST
  • Moonset:
  • 7:02 PM EST

THIS AFTERNOON

RAIN
Lo: 31°F
Precip: 80%

THURSDAY

MOSTLY CLOUDY
Hi: 39°F
Lo: 31°F

FRIDAY

RAIN
Hi: 39°F
Lo: 31°F
Precip: 90%

SATURDAY

PARTLY SUNNY
Hi: 41°F
Lo: 27°F
Precip: 30%
Weather Forecast In Detail:
Forecast Issued: 1250 PM EST Wed Feb 18 2026

This Afternoon...Rain. Areas of fog. Near steady temperature in the upper 30s. East winds around 5 mph. Chance of rain 80 percent.
Tonight...Cloudy. Rain likely in the evening. Areas of fog in the evening, then patchy fog after midnight. Lows in the lower 30s. Northeast winds 5 to 10 mph. Chance of rain 70 percent.
Thursday...Mostly cloudy. Highs in the upper 30s. East winds 5 to 10 mph.
Thursday Night...Mostly cloudy. A slight chance of rain and snow in the evening, then a chance of rain after midnight. Lows in the lower 30s. East winds 5 to 10 mph. Chance of precipitation 50 percent.
Friday...Rain. Highs in the upper 30s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.
Friday Night...Mostly cloudy. A chance of rain and snow in the evening. Lows in the lower 30s. Chance of precipitation 40 percent.
Saturday...Partly sunny. A chance of rain in the afternoon. Highs in the lower 40s. Chance of rain 30 percent.
Saturday Night...Mostly cloudy. A chance of rain in the evening, then a chance of rain and snow after midnight. Lows in the upper 20s. Chance of precipitation 30 percent.
Sunday...Mostly cloudy with a 40 percent chance of snow. Highs in the mid 30s.
Sunday Night...Cloudy with a 50 percent chance of snow. Breezy with lows in the upper 20s.
Monday...Mostly cloudy. A chance of snow in the morning. Highs in the mid 30s. Chance of snow 50 percent.
Monday Night...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 20s.
Tuesday...Sunny. Highs in the mid 30s.
Tuesday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 20s.
Wednesday...Partly sunny. Highs around 40.
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