• Today

    May 23

    76°Lo 63°

    Heavy thunderstorms

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      350 - High
  • Fri

    May 24

    68°Lo 48°

    Cloudy, showers; not as warm

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      12 - Moderate
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sat

    May 25

    61°Lo 47°

    Morning rain; cloudy, windy

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Sun

    May 26

    64°Lo 46°

    Partly sunny, breezy and cool

    Extreme indoor dust & dander levels
    • Precip
      9%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      30%
    more
  • Mon

    May 27

    72°Lo 47°

    Mostly sunny and warmer

    Very High indoor dust & dander levels
    • Precip
      6%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      11%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
T-storms
Cloudy
T-storms
Cloudy
Cloudy
T-storms
T-storms
Cloudy
Temp (°F) 70° 70° 71° 72° 74° 73° 75° 76°
RealFeel® 69° 71° 70° 72° 75° 75° 75° 78°
Humidity 94% 91% 87% 83% 80% 86% 80% 74%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
55%
 
49%
 
61%
 
49%
 
47%
 
51%
 
52%
 
48%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (mph) 6 W 7 W 8 WSW 9 WSW 9 SW 9 SSW 9 SSW 9 SSW
UV Index 1 1 1 1 2 3 3 3
Cloud Cover 95% 100% 100% 98% 94% 90% 90% 90%
Dew Point 68° 67° 67° 67° 68° 69° 68° 68°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2012
High 76° 74° 99° (1911) 81°
Low 63° 53° 41° (2006) 63°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:36 AM with 14:39 of sunlight, then sets at 8:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:44 PM with 10:21 of moolight, then sets at 5:05 AM

Top Story

Princeton Weather Report

Severe Storms From Washington DC to New York City

May 23, 2013; 5:12 AM ET

The same system that spawned deadly tornadoes in Oklahoma will reach the Northeast on Thursday. more >

Smoke Alert: The Hidden Dangers of E-Cigarettes

May 20, 2013; 5:00 AM ET E-cigarette manufacturers claim the devices can help a person quit smoking but have those claims ever been proven?

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps