Smithtown, NY Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Smithtown, NY in one place.
Sunny, with a high near 78. Southwest wind 7 to 13 mph.
Local Weather Overview
This forecast page for Smithtown, NY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 23, 2026 7:21 PM EDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Smithtown, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 7:21 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Smithtown
Friday looks like the warmest upcoming period in Smithtown at 79 degrees F.
Monday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Thursday at about 7 to 14 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 7:21 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 64. West wind 7 to 10 mph.
Sunny, with a high near 77. West wind 8 to 13 mph.
Mostly clear, with a low around 65.
Sunny, with a high near 77.
Partly cloudy, with a low around 70.
A slight chance of rain showers after 8am. Mostly sunny, with a high near 78.
A slight chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Rain showers likely before 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 60%.
Rain showers likely before 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 60%.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.
Mostly sunny, with a high near 78.
Mostly sunny, with a high near 78.
Mostly clear, with a low around 68.
Mostly clear, with a low around 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Sunny
|
78°F |
7 to 13 mph
SW
|
|
Monday Night
Aug 24
|
Mostly Clear
|
64°F |
7 to 10 mph
W
|
|
Tuesday
Aug 25
|
Sunny
|
77°F |
8 to 13 mph
W
|
|
Tuesday Night
Aug 25
|
Mostly Clear
|
65°F |
6 to 9 mph
W
|
|
Wednesday
Aug 26
|
Sunny
|
77°F |
5 to 9 mph
W
|
|
Wednesday Night
Aug 26
|
Partly Cloudy
|
70°F |
9 mph
S
|
|
Thursday
Aug 27
|
Slight Chance Rain Showers
|
78°F |
7 to 14 mph
S
|
|
Thursday Night
Aug 27
|
Showers And Thunderstorms Likely
|
71°F |
7 to 14 mph
S
|
|
Friday
Aug 28
|
Rain Showers Likely then Slight Chance Showers And Thunderstorms
|
79°F |
9 mph
S
|
|
Friday
Aug 28
|
Rain Showers Likely then Slight Chance Showers And Thunderstorms
|
79°F |
9 mph
S
|
|
Friday Night
Aug 28
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
5 to 8 mph
W
|
|
Friday Night
Aug 28
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
5 to 8 mph
W
|
|
Saturday
Aug 29
|
Mostly Sunny
|
78°F |
7 mph
W
|
|
Saturday
Aug 29
|
Mostly Sunny
|
78°F |
7 mph
W
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
68°F |
6 mph
W
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
68°F |
6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Smithtown.
