Current Conditions

Smithtown, New York

59°F15°C

Partly Cloudy

Wind

NE 18 mph30 km/h

Humidity

71%

Cloud Cover

98%

As of Wednesday, September 23, 2026 at 3:14 AM EDT

Today's Outlook

Day

Overcast and mild, with a high of 65°F18°C and morning low of 60°F15°C. Windy from the ENE at 21 to 22 mph33 to 35 km/h.

Night

Mostly cloudy, with a low around 59°F15°C. Windy from the NE at 19 mph31 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 65°F18°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 75%	Wind NE 20 mph32 km/h	Wednesday: Overcast and mild, with a high of 65°F18°C and morning low of 60°F15°C. Windy from the ENE at 21 to 22 mph33 to 35 km/h. Wednesday Night: Mostly cloudy, with a low around 59°F15°C. Windy from the NE at 19 mph31 km/h.
Cloudy	High 65°F18°C	Low 57°F14°C	Precip 0 in0.1 mm1%	Cloud 80%	Wind NE 18 mph29 km/h	Thursday: Overcast and mild, with a high of 65°F18°C and morning low of 57°F14°C. Windy from the NE at 18 to 20 mph29 to 31 km/h. Dry air. Thursday Night: Mostly cloudy, with a low around 57°F14°C. Windy from the NE at 18 mph28 km/h.
Light Rain	High 67°F19°C	Low 57°F14°C	Precip 0.22 in5.7 mm52%	Cloud 89%	Wind NNE 21 mph34 km/h	Friday: Overcast and mild, with a high of 67°F19°C and morning low of 59°F15°C. Windy from the NNE at 21 to 22 mph34 to 35 km/h. 39% chance of light rain throughout the day. Dry air. Friday Night: Overcast, with a low around 57°F14°C. Windy from the NNE at 21 to 23 mph33 to 37 km/h. 52% chance of light rain in the evening.
Rain	High 63°F17°C	Low 61°F16°C	Precip 0.76 in19.2 mm84%	Cloud 91%	Wind NNE 23 mph37 km/h	Saturday: Overcast and mild, with a high of 63°F17°C. Windy from the NNE at 23 to 24 mph38 to 38 km/h. 78% chance of rain throughout the day. Saturday Night: Overcast, with a low around 61°F16°C. Windy from the NNE at 23 to 24 mph37 to 38 km/h. 84% chance of rain throughout the night.
Rain	High 63°F17°C	Low 61°F16°C	Precip 0.91 in23.2 mm87%	Cloud 98%	Wind NNE 20 mph32 km/h	Sunday: Overcast and mild, with a high of 63°F17°C. Windy from the NNE at 20 to 22 mph33 to 35 km/h. 87% chance of rain throughout the day. Sunday Night: Overcast, with a low around 61°F16°C. Windy from the N at 19 to 23 mph31 to 37 km/h. 87% chance of rain throughout the night.
Light Rain	High 65°F18°C	Low 61°F16°C	Precip 0.17 in4.4 mm61%	Cloud 89%	Wind NNW 11 mph18 km/h	Monday: Overcast and mild, with a high of 65°F18°C. Breezy from the NW at 12 to 13 mph19 to 20 km/h. 45% chance of light rain throughout the day. Monday Night: Overcast, with a low around 61°F16°C. Breezy from the NNW at 11 to 14 mph18 to 23 km/h. 61% chance of light rain throughout the night.
Partly Cloudy	High 68°F20°C	Low 62°F16°C	Precip 0.01 in0.3 mm5%	Cloud 60%	Wind W 6 mph10 km/h	Tuesday: Mostly cloudy and mild, with a high of 68°F20°C and morning low of 62°F17°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. Tuesday Night: Mostly cloudy, with a low around 62°F16°C. Breezy from the W at 7 to 8 mph11 to 13 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	65°F18°C	59°F15°C	0 in0 mm· —	75%	Partly Cloudy	NE 20 mph32 km/h
DayOvercast and mild, with a high of 65°F18°C and morning low of 60°F15°C. Windy from the ENE at 21 to 22 mph33 to 35 km/h. NightMostly cloudy, with a low around 59°F15°C. Windy from the NE at 19 mph31 km/h.
	ThursdaySep 24	65°F18°C	57°F14°C	0 in0.1 mm· 1%	80%	Cloudy	NE 18 mph29 km/h
DayOvercast and mild, with a high of 65°F18°C and morning low of 57°F14°C. Windy from the NE at 18 to 20 mph29 to 31 km/h. Dry air. NightMostly cloudy, with a low around 57°F14°C. Windy from the NE at 18 mph28 km/h.
	FridaySep 25	67°F19°C	57°F14°C	0.22 in5.7 mm· 52%	89%	Light Rain	NNE 21 mph34 km/h
DayOvercast and mild, with a high of 67°F19°C and morning low of 59°F15°C. Windy from the NNE at 21 to 22 mph34 to 35 km/h. 39% chance of light rain throughout the day. Dry air. NightOvercast, with a low around 57°F14°C. Windy from the NNE at 21 to 23 mph33 to 37 km/h. 52% chance of light rain in the evening.
	SaturdaySep 26	63°F17°C	61°F16°C	0.76 in19.2 mm· 84%	91%	Rain	NNE 23 mph37 km/h
DayOvercast and mild, with a high of 63°F17°C. Windy from the NNE at 23 to 24 mph38 to 38 km/h. 78% chance of rain throughout the day. NightOvercast, with a low around 61°F16°C. Windy from the NNE at 23 to 24 mph37 to 38 km/h. 84% chance of rain throughout the night.
	SundaySep 27	63°F17°C	61°F16°C	0.91 in23.2 mm· 87%	98%	Rain	NNE 20 mph32 km/h
DayOvercast and mild, with a high of 63°F17°C. Windy from the NNE at 20 to 22 mph33 to 35 km/h. 87% chance of rain throughout the day. NightOvercast, with a low around 61°F16°C. Windy from the N at 19 to 23 mph31 to 37 km/h. 87% chance of rain throughout the night.
	MondaySep 28	65°F18°C	61°F16°C	0.17 in4.4 mm· 61%	89%	Light Rain	NNW 11 mph18 km/h
DayOvercast and mild, with a high of 65°F18°C. Breezy from the NW at 12 to 13 mph19 to 20 km/h. 45% chance of light rain throughout the day. NightOvercast, with a low around 61°F16°C. Breezy from the NNW at 11 to 14 mph18 to 23 km/h. 61% chance of light rain throughout the night.
	TuesdaySep 29	68°F20°C	62°F16°C	0.01 in0.3 mm· 5%	60%	Partly Cloudy	W 6 mph10 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 62°F17°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. NightMostly cloudy, with a low around 62°F16°C. Breezy from the W at 7 to 8 mph11 to 13 km/h.
	WednesdaySep 30	69°F20°C	63°F17°C	0.02 in0.6 mm· 6%	54%	Partly Cloudy	S 6 mph10 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 63°F17°C. Breezy from the SSE at 6 to 8 mph10 to 13 km/h. NightMostly cloudy, with a low around 63°F17°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.
	ThursdayOct 1	69°F20°C	65°F18°C	0.09 in2.3 mm· 18%	67%	Drizzle	SSE 9 mph15 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the SSE at 9 to 10 mph15 to 16 km/h. 17% chance of drizzle throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the S at 9 to 10 mph15 to 17 km/h. 18% chance of drizzle throughout the night.
	FridayOct 2	69°F20°C	65°F18°C	0.24 in6.1 mm· 30%	68%	Showers	S 10 mph16 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the S at 10 to 11 mph17 to 17 km/h. 27% chance of showers throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the SSW at 10 mph16 km/h. 30% chance of showers throughout the night.
	SaturdayOct 3	68°F20°C	63°F17°C	0.22 in5.7 mm· 25%	59%	Showers	SW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 63°F17°C. Breezy from the SSW at 9 mph15 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 63°F17°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 25% chance of showers throughout the night.
	SundayOct 4	68°F20°C	62°F17°C	0.18 in4.5 mm· 20%	58%	Showers	SSW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 62°F17°C. Breezy from the S at 9 to 10 mph15 to 16 km/h. 16% chance of showers throughout the day. NightMostly cloudy, with a low around 62°F17°C. Breezy from the SSW at 10 to 11 mph15 to 17 km/h. 20% chance of showers throughout the night.
	MondayOct 5	66°F19°C	62°F17°C	0.13 in3.2 mm· 20%	56%	Showers	W 11 mph17 km/h
DayMostly cloudy and mild, with a high of 66°F19°C. Breezy from the W at 11 mph17 km/h. 14% chance of drizzle throughout the day. NightMostly cloudy, with a low around 63°F17°C. Breezy from the W at 11 mph17 km/h. 20% chance of showers throughout the night.
	TuesdayOct 6	65°F19°C	60°F15°C	0.17 in4.3 mm· 15%	47%	Showers	WNW 10 mph16 km/h
DayMostly cloudy and mild, with a high of 65°F19°C and morning low of 60°F15°C. Breezy from the W at 10 mph16 km/h. 15% chance of showers throughout the day. NightPartly cloudy, with a low around 60°F16°C. Breezy from the WNW at 10 to 11 mph17 to 17 km/h. 15% chance of showers throughout the night.
	WednesdayOct 7	64°F18°C	59°F15°C	0.11 in2.8 mm· 16%	45%	Showers	WNW 11 mph17 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 59°F15°C. Breezy from the W at 11 mph17 km/h. 16% chance of showers throughout the day. NightPartly cloudy, with a low around 59°F15°C. Breezy from the WNW at 10 to 11 mph17 to 18 km/h. 11% chance of drizzle throughout the night.

Nearby Cities

Hauppauge2 mi3 km Kings Park4 mi6 km Ronkonkoma4 mi6 km Lake Ronkonkoma4 mi6 km Central Islip5 mi7 km Commack5 mi8 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 40.8559°N, 73.2007°W·Elevation: 18m·Timezone: America/New_York·Population: 26,470