• Early AM

    May 31

    Lo 65°

    Partly cloudy

    Migraine Headache Weather
    • Hi
      RealFeel
      90°
    • UV
      5 - High
    • Cloud
      Cover
      73%
    more
  • Today

    May 31

    86°Lo 62°

    Sunshine and some clouds

    Beneficial weather for migraines
    • Hi
      RealFeel
      92°
    • UV
      5 - High
    • Cloud
      Cover
      23%
  • Wed

    Jun 1

    83°Lo 64°

    A thunderstorm in spots

    Beneficial weather for migraines
    • Hi
      RealFeel
      90°
    • UV
      5 - High
    • Cloud
      Cover
      95%
    more
  • Thu

    Jun 2

    78°Lo 66°

    An afternoon thunderstorm

    Beneficial weather for migraines
    • Hi
      RealFeel
      79°
    • UV
      4 - Moderate
    • Cloud
      Cover
      99%
    more
  • Fri

    Jun 3

    81°Lo 62°

    Partly sunny with a t-storm

    Beneficial weather for migraines
    • Hi
      RealFeel
      88°
    • UV
      4 - Moderate
    • Cloud
      Cover
      74%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
2am
3am 4am 5am 6am 7am 8am 9am
  2am 3am 4am 5am 6am 7am 8am 9am
Forecast
Mostly Cloudy
Fog
Fog
Fog
Fog
Fog
Partly Sunny
Partly Sunny
Temp (°F) 67° 67° 65° 65° 66° 66° 70° 73°
RealFeel® 68° 68° 66° 65° 65° 66° 72° 78°
Humidity 93% 89% 96% 95% 94% 92% 81% 72%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Rain
 
1%
 
1%
 
1%
 
1%
 
1%
 
1%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  2am 3am 4am 5am 6am 7am 8am 9am
Wind (mph) 2 SSE 2 SSW 2 SSW 2 SSW 2 SSW 4 WSW 5 NW 5 N
UV Index 0 0 0 0 0 0 1 3
Cloud Cover 85% 85% 55% 45% 45% 45% 37% 30%
Dew Point 65° 64° 64° 64° 64° 64° 64° 64°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - May 31

more Historical Weather Data >
  Today Normal Record 5/31/2015
High 86° 79° 94° (2011) 87°
Low 62° 56° 37° (1984) 69°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:46 AM with 14:43 of sunlight, then sets at 8:29 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:47 AM with 12:34 of moolight, then sets at 3:21 PM

Herndon Weather Report

Bout of cooler air to interrupt summerlike warmth across northeastern US

May 31, 2016; 3:39 AM ET

Temperatures and humidity levels will throttle back as dry air expands southward in the northeastern United States through the middle of the week. more >

Tue. Migraine Headache

Tue. UV Index