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Town of Smithtown, NYSmithtown, NY 7-Day Night Weather Forecast
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Smithtown, NY Weather Forecast
Smithtown, NY Weather Forecast Date: 303 PM EDT Fri Oct 23 2026
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Tonight... Mostly clear. Patchy frost after midnight. Lows around 40. Northeast winds around 5 mph.
Saturday... Partly sunny in the morning, then becoming mostly cloudy. Highs in the lower 60s. Northeast winds around 5 mph, becoming northwest in the afternoon.
Saturday Night... Mostly clear. Lows in the lower 40s. Northwest winds around 5 mph.
Sunday... Sunny. Highs in the mid 60s. Northwest winds around 5 mph, becoming west around 5 mph in the afternoon.
Sunday Night... Clear. Lows in the lower 40s. Southwest winds around 5 mph.
Monday... Sunny. Highs in the mid 60s.
Monday Night... Mostly clear. Lows in the upper 40s.
Tuesday... Sunny. Highs in the upper 50s.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s.
Wednesday... Mostly sunny. Highs in the upper 50s.
Wednesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s.
Thursday... Mostly sunny. Highs in the lower 60s.
Thursday Night... Partly cloudy. Lows in the lower 50s.
POP = Probability of Precipitation
Smithtown Radar Loop
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