Smithtown, NY Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Smithtown, NY in one place.
Partly sunny. High near 67, with temperatures falling to around 63 in the afternoon. Southeast wind 2 to 8 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: May 25, 2026 11:49 PM EDT.
The active forecast window currently covers May 26 to Jun 1, 2026 for Smithtown, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 26 to Jun 1, 2026
- Latest sync
- May 25, 2026 11:49 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Smithtown
Wednesday looks like the warmest upcoming period in Smithtown at 70 degrees F.
Saturday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Saturday at about 9 to 14 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- May 25, 2026 11:49 PM EDT
- Coverage
- 7 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 cloudy, with a low around 58. Southwest wind around 8 mph.
Mostly cloudy. High near 70, with temperatures falling to around 66 in the afternoon. Southwest wind 6 to 10 mph.
A slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. West wind 6 to 9 mph. Chance of precipitation is 20%.
Mostly sunny. High near 68, with temperatures falling to around 64 in the afternoon.
Partly cloudy, with a low around 56.
Sunny, with a high near 65.
A slight chance of rain showers after 8pm. Partly cloudy, with a low around 54.
A slight chance of rain showers. Mostly sunny, with a high near 63.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 53.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 53.
Mostly sunny, with a high near 63.
Mostly sunny, with a high near 63.
Partly cloudy, with a low around 56.
Partly cloudy, with a low around 56.
Sunny, with a high near 66.
Sunny, with a high near 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Partly Sunny
|
67°F |
2 to 8 mph
SE
|
|
Tuesday Night
May 26
|
Mostly Cloudy
|
58°F |
8 mph
SW
|
|
Wednesday
May 27
|
Mostly Cloudy
|
70°F |
6 to 10 mph
SW
|
|
Wednesday Night
May 27
|
Slight Chance Showers And Thunderstorms
|
63°F |
6 to 9 mph
W
|
|
Thursday
May 28
|
Mostly Sunny
|
68°F |
9 mph
NW
|
|
Thursday Night
May 28
|
Partly Cloudy
|
56°F |
9 mph
N
|
|
Friday
May 29
|
Sunny
|
65°F |
7 to 10 mph
W
|
|
Friday Night
May 29
|
Slight Chance Rain Showers
|
54°F |
7 to 10 mph
SW
|
|
Saturday
May 30
|
Slight Chance Rain Showers
|
63°F |
9 to 14 mph
NW
|
|
Saturday Night
May 30
|
Slight Chance Rain Showers then Partly Cloudy
|
53°F |
9 to 14 mph
N
|
|
Saturday Night
May 30
|
Slight Chance Rain Showers then Partly Cloudy
|
53°F |
9 to 14 mph
N
|
|
Sunday
May 31
|
Mostly Sunny
|
63°F |
10 mph
N
|
|
Sunday
May 31
|
Mostly Sunny
|
63°F |
10 mph
N
|
|
Sunday Night
May 31
|
Partly Cloudy
|
56°F |
9 mph
NW
|
|
Sunday Night
May 31
|
Partly Cloudy
|
56°F |
9 mph
NW
|
|
Monday
Jun 1
|
Sunny
|
66°F |
9 mph
NW
|
|
Monday
Jun 1
|
Sunny
|
66°F |
9 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Smithtown.
