• Wed

    May 4

    63°Lo 40°

    Partly sunny and warmer

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Thu

    May 5

    71°Lo 43°

    Nice with periods of sun

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    May 6

    71°Lo 46°

    Sunshine and patchy clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    May 7

    69°Lo 39°

    A p.m. t-storm possible

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    May 8

    61°Lo 36°

    A shower possible

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 63° RealFeel® 74° Precipitation 25%

Day

N

E

S

W

  • WNW 5 mph
  • Gusts: 7 mph

Partly sunny and warmer

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 12%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 40° RealFeel® 39° Precipitation 8%

Night

N

E

S

W

  • SSW 5 mph
  • Gusts: 8 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 8%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - May 4

more Historical Weather Data >
  Today Normal Record 5/4/2015
High 63° 65° N/A 62°
Low 40° 39° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:56 AM with 14:01 of sunlight, then sets at 7:57 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:43 AM with 12:54 of moolight, then sets at 5:37 PM

Castle Rock Weather Report

Heavy late-April snow to bury Colorado and threaten power outages

April 29, 2016; 1:30 PM ET

Enough cold air will be in place for another round of heavy snow to fall across Colorado, including Denver, to end the week. more >