• Tonight

    Apr 20

    Lo 54°

    Thunderstorms possible late

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
  • Tue

    Apr 21

    65°Lo 44°

    Partly sunny, breezy and nice

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Wed

    Apr 22

    62°Lo 37°

    Showers late in the afternoon

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      350 - High
    more
  • Thu

    Apr 23

    55°Lo 35°

    Cooler with clouds and sun

    Low ragweed pollen levels
    • Precip
      7%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      54%
    more
  • Fri

    Apr 24

    54°Lo 33°

    Breezy with periods of sun

    Ragweed Pollen Weather
    • Precip
      13%
    • Wind
      Speed
      15 mph
    • Cloud
      Cover
      50%
    more
Next Previous
Hi 67° RealFeel® 67° Precipitation 65%

Day

N

E

S

W

  • SSW 9 mph
  • Gusts: 30 mph

Periods of rain, some heavy this morning; mostly cloudy; there can be flooding in some areas

  • Max UV Index: 2 (Low)
  • Thunderstorms: 60%
  • Precipitation: 0.33 in
  • Rain: 0.33 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs
Lo 54° RealFeel® 51° Precipitation 50%

Night

N

E

S

W

  • SW 7 mph
  • Gusts: 12 mph

A heavy thunderstorm early, then t-storms possible; thunderstorms can bring hail and damaging winds

  • Max UV Index: N/A
  • Thunderstorms: 47%
  • Precipitation: 0.17 in
  • Rain: 0.17 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Princeton Pollen Levels - April 20

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    High

  • Mold

    Pollen

    Low

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2014
High 67° 63° 91° (1941) 57°
Low 54° 42° 27° (1926) 38°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:13 AM with 13:30 of sunlight, then sets at 7:43 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:40 AM with 14:22 of moolight, then sets at 10:02 PM

Princeton Weather Report

Philly: Cooler Air to Sweep Away Warmth This Week

April 20, 2015; 10:47 PM ET

Cooler air will push into the Philadelphia area during the middle and latter part of the week. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps