As of 11:37 EDT

Weather in Smithtown, NY

63°

Smithtown, Wednesday, 7 October, 11:37

Clear. Feels like 62°. High 63°, low 39°.

Pressure30.03 inHg

Wind6.9 mph S

Humidity52%

Visibility6.2 mi

Dew point45°

See detailed hourly forecast

Monthly outlook for Smithtown, NY: average high 64.5°, average low 53.6°. That is 1.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 8 October (73.1°), the coolest 7 October (38.8°).

64.5°/53.6°

Average high / low

+1.2°

Above normal

5 / 4

Wet days / normal

1.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	65.7°	63.6°	+1.2°
17 October – 26 October	62.4°	60°	+1.3°
27 October – 5 November	at normal	57.2°	—

October records over 66 years

89.6°2 October 2019All-time high

32.7°27 October 1976All-time low

Thu, 0873° / 50°

73 °

Smithtown, Thursday, 8 October

Clear. High 73°, low 50°.

Pressure29.85 inHg

Wind9.4 mph W

Humidity68%

Visibility6.2 mi

Dew point56°

Fri, 0968° / 50°

68 °

Smithtown, Friday, 9 October

Clear. High 68°, low 50°.

Pressure30.15 inHg

Wind10 mph W

Humidity55%

Visibility6.2 mi

Dew point47°

Sat, 1064° / 55°

64 °

Smithtown, Saturday, 10 October

Clear. High 64°, low 55°.

Pressure30.47 inHg

Wind1 mph NE

Humidity58%

Visibility6.2 mi

Dew point47°

Sun, 1168° / 60°

68 °

Smithtown, Sunday, 11 October

Overcast. High 68°, low 60°.

Pressure30.36 inHg

Wind8 mph S

Humidity61%

Visibility—

Dew point52°

Mon, 1271° / 65°

0.4

71 °

Smithtown, Monday, 12 October

Rain. High 71°, low 65°.

Pressure29.65 inHg

Wind14.5 mph S

Humidity95%

Visibility—

Dew point67°

Tue, 1367° / 60°

0.24

67 °

Smithtown, Tuesday, 13 October

Rain. High 67°, low 60°.

Pressure29.83 inHg

Wind15.9 mph SW

Humidity97%

Visibility—

Dew point61°

Wed, 1464° / 47°

0.42

64 °

Smithtown, Wednesday, 14 October

Rain. High 64°, low 47°.

Pressure29.71 inHg

Wind21.4 mph NW

Humidity58%

Visibility—

Dew point37°

Thu, 1556° / 48°

56 °

Smithtown, Thursday, 15 October

Light rain. High 56°, low 48°.

Pressure30.03 inHg

Wind19.7 mph N

Humidity72%

Visibility—

Dew point41°

Fri, 1663° / 55°

63 °

Smithtown, Friday, 16 October

Overcast. High 63°, low 55°.

Pressure30.00 inHg

Wind16.1 mph NE

Humidity73%

Visibility—

Dew point48°

Sat, 1766° / 58°

66 °

Smithtown, Saturday, 17 October

Overcast. High 66°, low 58°.

Pressure29.97 inHg

Wind13.3 mph NE

Humidity79%

Visibility—

Dew point56°

Sun, 1865° / 62°

65 °

Smithtown, Sunday, 18 October

Overcast. High 65°, low 62°.

Pressure29.88 inHg

Wind11.6 mph NE

Humidity82%

Visibility—

Dew point58°

Mon, 1967° / 58°

67 °

Smithtown, Monday, 19 October

Clear. High 67°, low 58°.

Pressure29.88 inHg

Wind17.2 mph NW

Humidity59%

Visibility—

Dew point49°

Tue, 2063° / 53°

63 °

Smithtown, Tuesday, 20 October

Clear. High 63°, low 53°.

Pressure30.03 inHg

Wind14 mph W

Humidity56%

Visibility—

Dew point42°

Wed, 2157° / 50°

0.34

57 °

Smithtown, Wednesday, 21 October

Rain. High 57°, low 50°.

Pressure29.91 inHg

Wind14.1 mph N

Humidity52%

Visibility—

Dew point39°

Thu, 2256° / 49°

0.06

56 °

Smithtown, Thursday, 22 October

Light rain. High 56°, low 49°.

Pressure30.00 inHg

Wind21 mph NE

Humidity75%

Visibility—

Dew point43°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 2359° / 50°

0.07

59 °

Smithtown, Friday, 23 October

Climate normal for this date — 60-year average.

Average high59°

Average low50°

Average precipitation0.07 in

Chance of precipitation22%

Record high71° (2007)

Record low34° (1969)

Sat, 2460° / 50°

0.13

60 °

Smithtown, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high60°

Average low50°

Average precipitation0.13 in

Chance of precipitation33%

Record high72° (2017)

Record low34° (1969)

Sun, 2560° / 50°

0.14

60 °

Smithtown, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high60°

Average low50°

Average precipitation0.14 in

Chance of precipitation38%

Record high75° (2022)

Record low39° (1962)

Mon, 2658° / 49°

0.16

58 °

Smithtown, Monday, 26 October

Climate normal for this date — 60-year average.

Average high58°

Average low49°

Average precipitation0.16 in

Chance of precipitation35%

Record high76° (2023)

Record low37° (1962)

Tue, 2758° / 49°

0.16

58 °

Smithtown, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°

Average low49°

Average precipitation0.16 in

Chance of precipitation30%

Record high74° (2023)

Record low33° (1976)

Wed, 2858° / 48°

0.17

58 °

Smithtown, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high58°

Average low48°

Average precipitation0.17 in

Chance of precipitation30%

Record high78° (2023)

Record low34° (1976)

Thu, 2957° / 47°

0.19

57 °

Smithtown, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high57°

Average low47°

Average precipitation0.19 in

Chance of precipitation25%

Record high73° (1984)

Record low34° (1965)

Fri, 3056° / 46°

0.11

56 °

Smithtown, Friday, 30 October

Climate normal for this date — 60-year average.

Average high56°

Average low46°

Average precipitation0.11 in

Chance of precipitation25%

Record high72° (2024)

Record low36° (2011)

Sat, 3157° / 47°

0.06

57 °

Smithtown, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high57°

Average low47°

Average precipitation0.06 in

Chance of precipitation20%

Record high77° (2024)

Record low35° (2020)

Sun, 0158° / 49°

0.13

58 °

Smithtown, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high58°

Average low49°

Average precipitation0.13 in

Chance of precipitation28%

Record high78° (2024)

Record low38° (1976)

Mon, 0258° / 48°

0.07

58 °

Smithtown, Monday, 2 November

Climate normal for this date — 60-year average.

Average high58°

Average low48°

Average precipitation0.07 in

Chance of precipitation32%

Record high69° (1971)

Record low32° (1965)

Tue, 0358° / 47°

0.11

58 °

Smithtown, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high58°

Average low47°

Average precipitation0.11 in

Chance of precipitation28%

Record high72° (2017)

Record low37° (1996)

Wed, 0456° / 46°

0.06

56 °

Smithtown, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°

Average low46°

Average precipitation0.06 in

Chance of precipitation23%

Record high70° (1975)

Record low36° (2013)

Thu, 0556° / 47°

0.13

56 °

Smithtown, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°

Average low47°

Average precipitation0.13 in

Chance of precipitation32%

Record high73° (2022)

Record low37° (1965)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Smithtown, NY are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Smithtown, NY since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.