• Today

    May 1

    38°Lo 25°

    Snow and rain

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      40°
    • UV
      4 - Moderate
    • Cloud
      Cover
      93%
  • Mon

    May 2

    54°Lo 32°

    A thunderstorm in spots

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      66°
    • UV
      7 - Very High
    • Cloud
      Cover
      49%
    more
  • Tue

    May 3

    63°Lo 38°

    Partly sunny

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      72°
    • UV
      7 - Very High
    • Cloud
      Cover
      26%
    more
  • Wed

    May 4

    70°Lo 41°

    Mostly sunny and pleasant

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      80°
    • UV
      7 - Very High
    • Cloud
      Cover
      12%
    more
  • Thu

    May 5

    77°Lo 46°

    A thunderstorm in spots

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      82°
    • UV
      5 - High
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 38° RealFeel® 40° Precipitation 58%

Day

N

E

S

W

  • N 7 mph
  • Gusts: 15 mph

Mostly cloudy and cold with a little snow, mixing with rain late with little or no accumulation

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 6%
  • Precipitation: 0.1 in
  • Rain: 0.08 in
  • Snow: 0.1 in
  • Ice: 0 in
  • Hours of Precipitation: 2.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 25° RealFeel® 27° Precipitation 48%

Night

N

E

S

W

  • WSW 4 mph
  • Gusts: 6 mph

An evening rain or snow shower in spots; otherwise, partly cloudy and cold

  • Max UV Index: N/A
  • Thunderstorms: 6%
  • Precipitation: 0.01 in
  • Rain: 0 in
  • Snow: 0.1 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - May 1

more Historical Weather Data >
  Today Normal Record 5/1/2015
High 38° 69° N/A 63°
Low 25° 39° N/A 46°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:59 AM with 13:56 of sunlight, then sets at 7:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:51 AM with 11:15 of moolight, then sets at 2:06 PM

Thornton Weather Report

PHOTOS: Late-April snowstorm extends Colorado ski season into early May

May 1, 2016; 7:19 AM ET

A late-April snowstorm dumped over a foot of heavy, wet snow across parts of Colorado on Thursday into Friday, boosting snowpack for an extended ski season at local resorts. more >

Sun. Sinus Headache

Sun. UV Index