• Today

    Mar 1

    29°Lo 15°

    Cloudy and cold

    Beneficial weather for asthma
    • Hi
      RealFeel
      32°
    • UV
      2 - Low
    • Air Qual.
      Good
  • Mon

    Mar 2

    41°Lo 23°

    Cold with periods of snow

    Neutral weather for asthma
    • Hi
      RealFeel
      46°
    • UV
      4 - Moderate
    • Air Qual.
      Good
    more
  • Tue

    Mar 3

    25°Lo 0°

    Colder with periods of snow

    Beneficial weather for asthma
    • Hi
      RealFeel
      19°
    • UV
      1 - Low
    • Air Qual.
      Good
    more
  • Wed

    Mar 4

    24°Lo 9°

    Mostly sunny and cold

    Beneficial weather for asthma
    • Hi
      RealFeel
      31°
    • UV
      5 - Moderate
    • Cloud
      Cover
      20%
    more
  • Thu

    Mar 5

    43°Lo 19°

    Sunny and not as cold

    Beneficial weather for asthma
    • Hi
      RealFeel
      53°
    • UV
      5 - Moderate
    • Cloud
      Cover
      10%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
11pm
Mon
12am
1am 2am 3am 4am 5am 6am
  11pm 12am 1am 2am 3am 4am 5am 6am
Forecast
Cloudy
Snow
Cloudy
Flurries
Flurries
Flurries
Cloudy
Cloudy
Temp (°F) 19° 19° 19° 18° 17° 16° 16° 15°
RealFeel® 19° 18° 19° 17° 16° 16° 16° 16°
Humidity 91% 91% 92% 91% 91% 92% 92% 92%
   
  11pm 12am 1am 2am 3am 4am 5am 6am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
47%
 
51%
 
38%
 
51%
 
51%
 
51%
 
43%
 
43%
Ice
 
0%
 
0%
 
0%
 
0%
 
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  11pm 12am 1am 2am 3am 4am 5am 6am
Wind (mph) 4 E 4 ENE 4 ENE 4 NE 4 NE 4 NE 4 NNE 4 NNE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 99% 99% 99% 99% 99% 98% 98% 97%
Dew Point 17° 17° 17° 16° 15° 14° 14° 13°
Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F

Temperature History - Mar 1

more Historical Weather Data >
  Today Normal Record 3/1/2014
High 29° 52° N/A 27°
Low 15° 26° N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:35 AM with 11:18 of sunlight, then sets at 5:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:30 PM with 14:08 of moolight, then sets at 4:38 AM

Boulder Weather Report

Western Storm to Deliver Fraction of Much-Needed Rain, Snow

February 28, 2015; 10:07 PM ET

A slow-moving storm will continue to affect the West this weekend and into the first part of next week with rounds of precipitation for some needy areas as well as trouble for travelers. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Sun. Air Quality

Sun. Asthma Risk

Sun. UV Index