• Today

    Dec 27

    56°Lo 39°

    Mostly sunny

    Beneficial weather for asthma
    • Hi
      RealFeel
      59°
    • UV
      2 - Low
    • Air Qual.
      Moderate
    more
  • Sun

    Dec 28

    51°Lo 37°

    Periods of rain

    Beneficial weather for asthma
    • Hi
      RealFeel
      50°
    • UV
      1 - Low
    • Air Qual.
      Good
  • Mon

    Dec 29

    43°Lo 31°

    Cloudy

    Beneficial weather for asthma
    • Hi
      RealFeel
      41°
    • UV
      1 - Low
    • Air Qual.
      Moderate
    more
  • Tue

    Dec 30

    40°Lo 22°

    Remaining cloudy and breezy

    Beneficial weather for asthma
    • Hi
      RealFeel
      30°
    • UV
      1 - Low
    • Cloud
      Cover
      84%
    more
  • Wed

    Dec 31

    35°Lo 21°

    Intervals of clouds and sun

    Beneficial weather for asthma
    • Hi
      RealFeel
      29°
    • UV
      2 - Low
    • Cloud
      Cover
      46%
    more
Next Previous
Hi 51° RealFeel® 50° Precipitation 68%

Day

N

E

S

W

  • NW 4 mph
  • Gusts: 6 mph

Periods of rain

  • Max UV Index: 1 (Low)
  • Thunderstorms: 20%
  • Precipitation: 0.37 in
  • Rain: 0.37 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 5.5 hrs
  • Hours of Rain: 5.5 hrs
Lo 37° RealFeel® 36° Precipitation 63%

Night

N

E

S

W

  • NNW 6 mph
  • Gusts: 9 mph

Cloudy with a little rain

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.18 in
  • Rain: 0.18 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

Temperature History - Dec 28

more Historical Weather Data >
  Today Normal Record 12/28/2013
High 51° 43° 73° (1984) 57°
Low 37° 25° (1966) 27°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:27 AM with 9:27 of sunlight, then sets at 4:54 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:52 AM with 12:52 of moolight, then sets at 12:44 AM

Gaithersburg Weather Report

DC: Typical Winter Cold to Avoid Area Until Next Week

December 27, 2014; 2:00 PM ET

Mild weather will continue in the Washington, D.C., area through this weekend, ahead of more typical cold conditions for next week. more >

The Dangers of Bus Travel

Dec 10, 2012; 5:00 AM ET While bus transportation is one of the most affordable, it is important to know which motor coach companies rank highest in safety.

Sun. Air Quality

Sun. Asthma Risk

Sun. UV Index