Smithtown, NY Weather Conditions | Weather Underground

Windy with a few showers developing this afternoon. High 69F. Winds NNE at 25 to 35 mph. Chance of rain 30%. Coastal flooding possible at high tide.

Tonight

Fri 09/25

Low 56°f

92% Precip. / 0.42 in

Windy with rain likely. Low 56F. Winds NNE at 25 to 35 mph. Chance of rain 90%. Rainfall near a half an inch. Coastal flooding possible at high tide.

Tomorrow

Sat 09/26

High 61°f57°f

80% Precip. / 0.86 in

Windy with rain likely. High 61F. Winds NNE at 25 to 35 mph. Chance of rain 80%. Rainfall may reach one inch. Coastal flooding possible at high tide.

Hourly Forecast

Now

60°

11AM

61°

12PM

63°

1PM

65°

2PM

67°

3PM

67°

4PM

67°

5PM

66°

6PM

32%

66°

6:44PM

Sunset

7PM

50%

64°

8PM

44%

63°

9PM

54%

62°

10PM

64%

60°

11PM

48%

59°

12AM

66%

59°

1AM

68%

59°

2AM

52%

59°

3AM

68%

58°

4AM

88%

58°

5AM

93%

58°

6AM

85%

57°

6:44AM

Sunrise

7AM

78%

57°

8AM

80%

58°

9AM

73%

59°

10AM

79%

59°

Additional Conditions

Pressure 30.1 in
Visibility 10 miles
Clouds Partly Cloudy
Dew Point43°F
Humidity 54%
Rainfall 0 in
Snow Depth 0 in

KISP Station History

Almanac for September 25, 2026

Forecast Average Record
Temperature
High 69°F 72°F 87°F 2010
Low 55°F 56°F 38°F 1963
Rain/Snow Depth
Precipitation 0.43 in 3 in -
Snow 0 in 0 in -

Almanac for September 26, 2026

Forecast Average Record
Temperature
High 61°F 71°F 85°F
Low 55°F 55°F 40°F

Astronomy

Sun Rise Set
Actual Time 6:43 AM 6:44 PM
Civil Twilight 6:16 AM 7:12 PM
Nautical Twilight 5:44 AM 7:43PM
Astronomical Twilight 5:11 AM 8:16 PM

Length of Visible Light 12h 56m
Length of Day 12h 1m
Tomorrow will be 2 minutes 42 seconds shorter

Moon 6:08 PM 5:28 AM
Waxing Gibbous99% of the Moon is Illuminated

Sep 26

Full Moon

Oct 3

Waning Half Last Qtr

Oct 10

New Moon

Oct 18

Waxing Half First Qtr

Nearby Weather Stations

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