10-day forecast for Smithtown, PA: 36° to 73°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Friday, October 30
61°
Worst day: Wednesday, October 28
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 2669° / 37°0
Morning38°feels 34°
Afternoon69°feels 68°
Evening51°feels 49°
Overnight38°feels 33°
69 °
Smithtown, Monday, 26 October
Clear. High 69°, low 37°.
Pressure30.27 inHg
Wind6.7 mph W
Humidity50%
Visibility6.2 mi
Dew point43°
Tue, 2762° / 47°0
Morning50°feels 47°
Afternoon62°feels 60°
Evening52°feels 49°
Overnight52°feels 51°
62 °
Smithtown, Tuesday, 27 October
Clear. High 62°, low 47°.
Pressure30.36 inHg
Wind4.7 mph N
Humidity53%
Visibility6.2 mi
Dew point42°
Wed, 2861° / 40°0
Morning41°feels 39°
Afternoon61°feels 59°
Evening53°feels 51°
Overnight44°feels 42°
61 °
Smithtown, Wednesday, 28 October
Partly cloudy. High 61°, low 40°.
Pressure30.50 inHg
Wind4.1 mph SE
Humidity52%
Visibility6.2 mi
Dew point39°
Thu, 2966° / 46°0
Morning47°feels 46°
Afternoon61°feels 60°
Evening64°feels 63°
Overnight47°feels 46°
66 °
Smithtown, Thursday, 29 October
Clear. High 66°, low 46°.
Pressure30.36 inHg
Wind8.1 mph SW
Humidity67%
Visibility—
Dew point47°
Fri, 3073° / 53°0
Morning57°feels 56°
Afternoon68°feels 67°
Evening69°feels 69°
Overnight58°feels 57°
73 °
Smithtown, Friday, 30 October
Mostly clear. High 73°, low 53°.
Pressure30.18 inHg
Wind8.8 mph W
Humidity57%
Visibility—
Dew point50°
Sat, 3164° / 55°0
Morning60°feels 59°
Afternoon63°feels 61°
Evening62°feels 61°
Overnight56°feels 55°
64 °
Smithtown, Saturday, 31 October
Partly cloudy. High 64°, low 55°.
Pressure30.36 inHg
Wind6.4 mph E
Humidity59%
Visibility—
Dew point47°
Sun, 0167° / 54°0
Morning57°feels 56°
Afternoon62°feels 61°
Evening64°feels 64°
Overnight55°feels 55°
67 °
Smithtown, Sunday, 1 November
Overcast. High 67°, low 54°.
Pressure30.45 inHg
Wind5.5 mph S
Humidity71%
Visibility—
Dew point51°
Mon, 0268° / 54°0
Morning56°feels 56°
Afternoon63°feels 63°
Evening65°feels 64°
Overnight56°feels 55°
68 °
Smithtown, Monday, 2 November
Overcast. High 68°, low 54°.
Pressure30.36 inHg
Wind6.6 mph S
Humidity76%
Visibility—
Dew point54°
Tue, 0367° / 54°0.01
Morning56°feels 56°
Afternoon63°feels 63°
Evening66°feels 67°
Overnight60°feels 60°
67 °
Smithtown, Tuesday, 3 November
Light rain. High 67°, low 54°.
Pressure30.12 inHg
Wind6.8 mph S
Humidity92%
Visibility—
Dew point58°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Smithtown, PA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.