• Today

    Dec 20

    38°Lo 24°

    Times of sun and clouds

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      41°
    • UV
      1 - Low
    • Cloud
      Cover
      67%
    more
  • Sun

    Dec 21

    44°Lo 27°

    Partly sunny

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      47°
    • UV
      2 - Low
    • Cloud
      Cover
      28%
  • Mon

    Dec 22

    42°Lo 35°

    Cloudy with afternoon rain

    Neutral weather for sinus headaches
    • Hi
      RealFeel
      39°
    • UV
      1 - Low
    • Cloud
      Cover
      95%
    more
  • Tue

    Dec 23

    47°Lo 44°

    Mainly cloudy and damp

    At Risk weather for sinus headaches
    • Hi
      RealFeel
      45°
    • UV
      1 - Low
    • Cloud
      Cover
      94%
    more
  • Wed

    Dec 24

    61°Lo 41°

    Rain and a t-storm; warmer

    At High Risk weather for sinus headaches
    • Hi
      RealFeel
      56°
    • UV
      1 - Low
    • Cloud
      Cover
      99%
    more
Next Previous
Hi 44° RealFeel® 47° Precipitation 3%

Day

N

E

S

W

  • N 2 mph
  • Gusts: 5 mph

Partly sunny

  • Max UV Index: 2 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 27° RealFeel® 25° Precipitation 8%

Night

N

E

S

W

  • N 4 mph
  • Gusts: 6 mph

Increasing clouds

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

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 44° 44° 70° (2013) 70°
Low 27° 26° (1989) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:24 AM with 9:25 of sunlight, then sets at 4:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:39 AM with 10:15 of moolight, then sets at 4:54 PM

Gaithersburg Weather Report

DC: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 20, 2014; 1:50 PM ET

Following benign weather this weekend, a major storm will affect Washington, D.C., much of the East and Midwest on Christmas Eve. more >

New Year, New You

Dec 24, 2012; 5:00 AM ET Start 2013 right with these tips on how to set realistic New Year's resolutions!

Sun. Sinus Headache

Sun. UV Index