• Tonight

    Oct 20

    Lo 47°

    Mostly cloudy, a shower; cool

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Tue

    Oct 21

    65°Lo 47°

    A brief shower or two

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

    Oct 22

    58°Lo 45°

    Cooler with a shower or two

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

    Oct 23

    60°Lo 47°

    Windy with some sun returning

    Low ragweed pollen levels
    • Precip
      0%
    • Wind
      Speed
      16 mph
    • Cloud
      Cover
      67%
    more
  • Fri

    Oct 24

    64°Lo 46°

    A full day of sunshine

    Ragweed Pollen Weather
    • Precip
      6%
    • Wind
      Speed
      12 mph
    • Cloud
      Cover
      0%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
10pm
11pm Tue
12am
1am 2am 3am 4am 5am
  10pm 11pm 12am 1am 2am 3am 4am 5am
Forecast
Cloudy
Cloudy
Showers
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Temp (°F) 54° 53° 52° 52° 52° 50° 49° 48°
RealFeel® 52° 51° 51° 51° 50° 49° 48° 47°
Humidity 73% 75% 76% 78% 80% 82% 86% 89%
   
  10pm 11pm 12am 1am 2am 3am 4am 5am
Rain
 
16%
 
37%
 
40%
 
37%
 
32%
 
32%
 
32%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  10pm 11pm 12am 1am 2am 3am 4am 5am
Wind (mph) 5 SSE 5 S 5 S 5 S 5 SSW 4 SSW 4 SSW 2 SW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 96% 98% 95% 93% 90% 88% 88% 90%
Dew Point 46° 46° 45° 46° 46° 45° 45° 45°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Oct 20

more Historical Weather Data >
  Today Normal Record 10/20/2013
High 64° 67° N/A 66°
Low 47° 49° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:23 AM with 11:00 of sunlight, then sets at 6:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:11 AM with 12:32 of moolight, then sets at 4:43 PM

Rockville Weather Report

Storm to Affect DC This Week With Some Rain, Wind

October 20, 2014; 4:20 PM ET

A developing nor'easter will bring some showers and wind to the Washington, D.C., area during the middle and latter part of the week. more >

Mon. Pollen

Mon. Dust & Dander

Mon. Wind Maps