• Tonight

    Mar 5

    Lo 5°

    Clearing and frigid

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Fri

    Mar 6

    29°Lo 11°

    Sunny, but very cold

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

    Mar 7

    42°Lo 28°

    Partly sunny and not as cold

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

    Mar 8

    48°Lo 32°

    Clouds and sunshine

    Low ragweed pollen levels
    • Precip
      12%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      48%
    more
  • Mon

    Mar 9

    50°Lo 28°

    Plenty of sunshine

    Ragweed Pollen Weather
    • Precip
      16%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      9%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
6pm
7pm 8pm 9pm 10pm 11pm Fri
12am
1am
  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Forecast
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Partly Cloudy
Temp (°F) 24° 22° 20° 18° 17° 15° 13° 11°
RealFeel® 13° 10° -1° -3° -5°
Humidity 75% 81% 81% 81% 79% 77% 77% 74%
   
  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
31%
 
2%
 
2%
 
2%
 
2%
 
2%
 
1%
 
0%
Ice
 
21%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  6pm 7pm 8pm 9pm 10pm 11pm 12am 1am
Wind (mph) 9 NNW 10 NNW 12 NNW 12 NNW 13 NNW 13 NNW 13 NNW 13 NNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 100% 91% 85% 79% 73% 68% 50% 36%
Dew Point 17° 17° 15° 14° 11°
Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F

Temperature History - Mar 5

more Historical Weather Data >
  Today Normal Record 3/5/2014
High 32° 52° 79° (1976) 41°
Low 30° (1978) 31°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:36 AM with 11:29 of sunlight, then sets at 6:05 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:16 PM with 12:34 of moolight, then sets at 6:50 AM

Gaithersburg Weather Report

Washington, D.C., Baltimore: Warmup to Follow Cold Start to Weekend

March 5, 2015; 2:52 PM ET

In the wake of a storm that brought heavy snow to the Washington, D.C., and Baltimore area on Thursday, colder air moving in will cause a freeze-up of wet and slushy areas. more >

Making a Forecast: The Sixth Sense

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

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps