• Sun

    Jul 31

    81°Lo 66°

    A couple of thunderstorms

    Beneficial weather for migraines
    • Hi
      RealFeel
      90°
    • UV
      4 - Moderate
    • Cloud
      Cover
      91%
  • Mon

    Aug 1

    84°Lo 65°

    Cloudy to partly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      91°
    • UV
      5 - High
    • Cloud
      Cover
      54%
    more
  • Tue

    Aug 2

    83°Lo 67°

    Sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      90°
    • UV
      5 - High
    • Cloud
      Cover
      57%
    more
  • Wed

    Aug 3

    86°Lo 70°

    Clearing

    Beneficial weather for migraines
    • Hi
      RealFeel
      86°
    • UV
      5 - High
    • Cloud
      Cover
      13%
    more
  • Thu

    Aug 4

    88°Lo 71°

    Partly sunny and humid

    Beneficial weather for migraines
    • Hi
      RealFeel
      91°
    • UV
      5 - High
    • Cloud
      Cover
      2%
    more
Next Previous
Hi 81° RealFeel® 90° Precipitation 61%

Day

N

E

S

W

  • SSE 6 mph
  • Gusts: 10 mph

More clouds than sun; humid with a couple of showers and a thunderstorm

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.29 in
  • Rain: 0.29 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs
Lo 66° RealFeel® 67° Precipitation 51%

Night

N

E

S

W

  • SW 2 mph
  • Gusts: 8 mph

Considerable cloudiness and humid with a thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2015
High 81° 82° 93° (2002) 90°
Low 66° 66° 55° (2001) 71°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:48 AM with 14:21 of sunlight, then sets at 8:09 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:34 AM with 14:46 of moolight, then sets at 6:20 PM

Stony Brook Weather Report

Dangerous heat wave to persist in northeastern US much of this week

July 27, 2016; 1:00 AM ET

A stifling heat wave will remain entrenched across the Northeast much of this week, despite a brief reprieve in humidity for some. more >

Sun. Migraine Headache

Sun. UV Index