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As of 17:31 EDT

Weather in Stony Brook, NY

84°Current weather

Stony Brook, Saturday, 8 August, 17:31

Partly cloudy. Feels like 92°. High 87°, low 71°.

Pressure29.88 inHg
Wind8 mph SW
Humidity78%
Visibility6.2 mi
Dew point76°
Sun, 0991° / 74°0.02Light rain
91 °Light rain

Stony Brook, Sunday, 9 August

Light rain. High 91°, low 74°.

Pressure29.94 inHg
Wind6.9 mph W
Humidity58%
Visibility6.2 mi
Dew point67°
Mon, 1087° / 72°0Light rain
87 °Light rain

Stony Brook, Monday, 10 August

Light rain. High 87°, low 72°.

Pressure29.97 inHg
Wind1.3 mph SW
Humidity50%
Visibility6.2 mi
Dew point60°
Tue, 1187° / 76°0.01Light rain
87 °Light rain

Stony Brook, Tuesday, 11 August

Light rain. High 87°, low 76°.

Pressure29.85 inHg
Wind6.9 mph W
Humidity55%
Visibility6.2 mi
Dew point64°
Wed, 1277° / 71°0.43Rain
77 °Rain

Stony Brook, Wednesday, 12 August

Rain. High 77°, low 71°.

Pressure29.74 inHg
Wind7.5 mph NW
Humidity77%
Visibility6.2 mi
Dew point66°
Thu, 1384° / 69°0.11Light rain
84 °Light rain

Stony Brook, Thursday, 13 August

Light rain. High 84°, low 69°.

Pressure29.74 inHg
Wind15.1 mph NW
Humidity73%
Visibility—
Dew point68°
Fri, 1477° / 67°0Overcast
77 °Overcast

Stony Brook, Friday, 14 August

Overcast. High 77°, low 67°.

Pressure29.94 inHg
Wind12.6 mph NW
Humidity50%
Visibility—
Dew point50°
Sat, 1575° / 64°0Clear
75 °Clear

Stony Brook, Saturday, 15 August

Clear. High 75°, low 64°.

Pressure30.15 inHg
Wind13.2 mph NW
Humidity42%
Visibility—
Dew point45°
Sun, 1674° / 67°0Partly cloudy
74 °Partly cloudy

Stony Brook, Sunday, 16 August

Partly cloudy. High 74°, low 67°.

Pressure30.30 inHg
Wind10.6 mph S
Humidity41%
Visibility—
Dew point46°
Mon, 1778° / 71°0Partly cloudy
78 °Partly cloudy

Stony Brook, Monday, 17 August

Partly cloudy. High 78°, low 71°.

Pressure30.21 inHg
Wind13.2 mph S
Humidity50%
Visibility—
Dew point55°
Tue, 1879° / 73°0.3Rain
79 °Rain

Stony Brook, Tuesday, 18 August

Rain. High 79°, low 73°.

Pressure30.00 inHg
Wind16.7 mph SW
Humidity77%
Visibility—
Dew point68°
Wed, 1980° / 71°0.09Light rain
80 °Light rain

Stony Brook, Wednesday, 19 August

Light rain. High 80°, low 71°.

Pressure29.85 inHg
Wind10.1 mph N
Humidity68%
Visibility—
Dew point64°
Thu, 2077° / 70°0.02Light rain
77 °Light rain

Stony Brook, Thursday, 20 August

Light rain. High 77°, low 70°.

Pressure29.97 inHg
Wind10.5 mph N
Humidity75%
Visibility—
Dew point63°
Fri, 2174° / 68°1.17Heavy rain
74 °Heavy rain

Stony Brook, Friday, 21 August

Heavy rain. High 74°, low 68°.

Pressure30.00 inHg
Wind12.6 mph S
Humidity72%
Visibility—
Dew point63°
Sat, 2274° / 69°0.72Heavy rain
74 °Heavy rain

Stony Brook, Saturday, 22 August

Heavy rain. High 74°, low 69°.

Pressure29.77 inHg
Wind13.9 mph SW
Humidity86%
Visibility—
Dew point67°
Sun, 2371° / 63°0Clear
71 °Clear

Stony Brook, Sunday, 23 August

Clear. High 71°, low 63°.

Pressure29.91 inHg
Wind21 mph NW
Humidity51%
Visibility—
Dew point46°

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 Stony Brook, 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 Stony Brook, 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.