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  • Today

    May 22

    Warmer 74°Lo 44°
    more
  • Sat

    May 23

    Mostly sunny and comfortable 70°Lo 48°
  • Sun

    May 24

    Partly sunny 81°Lo 60°
    more
  • Mon

    May 25

    Warm with periods of sun 85°Lo 66°
    more
  • Tue

    May 26

    A stray afternoon t-storm 86°Lo 68°
    more
< Previous 8 hours Next 8 hours >
  Sat
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Mostly Clear
Sunny
Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 44° 44° 46° 51° 55° 58° 62° 66°
RealFeel® 42° 42° 44° 52° 61° 67° 74° 77°
Humidity 62% 59% 56% 50% 43% 36% 31% 29%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
0%
 
0%
 
0%
 
1%
 
1%
 
1%
 
1%
 
1%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 6 NW 6 NW 6 NNW 6 NNW 5 NNW 5 NNW 5 NNW 5 NNW
UV Index 0 0 0 1 3 5 6 8
Cloud Cover 10% 9% 9% 11% 11% 11% 11% 11%
Dew Point 32° 31° 31° 33° 33° 31° 31° 32°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - May 23

more Historical Weather Data >
  Today Normal Record 5/23/2014
High 70° 77° 92° (1964) 77°
Low 48° 53° 39° (2002) 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:51 AM with 14:31 of sunlight, then sets at 8:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:02 AM with 13:50 of moolight, then sets at 12:52 AM

Herndon Weather Report

DC, Baltimore: Warmer Days to Come Memorial Day Weekend

May 22, 2015; 11:51 AM ET

While temperatures rebounded on Friday, even warmer weather will reach the Baltimore and Washington, D.C., area this Memorial Day holiday weekend. more >

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