Herndon, Pennsylvania
Current Conditions -  °F | °C
As of 6:53 AM on Friday 25 Jul 2014 (Local Time) from KSEG Reporting Station
Clear Clear  
Wind Chill: 51°   Ceiling: Unl
Heat Index: 51°   Visibility: 7mi
Dew Point: 50°   Wind: 0mph
Humidity: 96%   Direction: NA
Pressure: 30.08"   Gusts: NA
Location:  40.71°N, 76.84°W
Report Text: KSEG 251053Z AUTO 00000KT 7SM CLR 11/10 A3008 RMK AO2 SLP184 T01060100
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Tropical Storm Tracking
Hourly Forecast -  °F | °C
Hi 83° - Lo 60°
8 AM
M Sunny
M Sunny
58°
9 AM
M Sunny
M Sunny
63°
10 AM
M Sunny
M Sunny
67°
11 AM
M Sunny
M Sunny
71°
12 PM
M Sunny
M Sunny
75°
1 PM
Sunny
Sunny
77°
Weather Maps
Daily Forecast -  °F | °C
fri sat sun mon tue wed thu fri sat sun
jul
25
M Sunny
M Sunny
83°
60°
jul
26
Iso T-Storms
Iso T-Storms
85°
66°
jul
27
Iso T-Storms
Iso T-Storms
83°
65°
jul
28
Sct T-Storms
Sct T-Storms
80°
58°
jul
29
P Cloudy
P Cloudy
73°
53°
jul
30
M Sunny
M Sunny
80°
57°
jul
31
P Cloudy
P Cloudy
83°
59°
aug
01
P Cloudy
P Cloudy
84°
60°
aug
02
P Cloudy
P Cloudy
84°
62°
aug
03
Showers
Showers
80°
63°
Details for Friday, July 25
Plenty of sunshine. High 83F. Winds light and variable.
Evening: A few passing clouds. Low around 60F. Winds light and variable.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 51%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 19%
Cloud Coverage
Sunrise: 5:57 AM
Sunset: 8:30 PM
 
Moonrise: 4:55 AM
Moonset: 7:25 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  NW
Direction: NW (313°)
Speed: 3Mph(5Km, 3Kts)
Details for Saturday, July 26
Scattered clouds with the possibility of an isolated thunderstorm developing during the afternoon. High around 85F. Winds SSW at 5 to 10 mph. Chance of rain 30%.
Evening: Partly to mostly cloudy with a chance of thunderstorms. Low 66F. Winds SSW at 5 to 10 mph. Chance of rain 50%.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 58%
Relative Humidity
Precipitation: 50%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 57%
Cloud Coverage
Sunrise: 5:58 AM
Sunset: 8:29 PM
 
Moonrise: 5:49 AM
Moonset: 8:02 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  SSW
Direction: SSW (194°)
Speed: 9Mph(15Km, 8Kts)
Details for Sunday, July 27
Slight chance of a thunderstorm. Potential for severe thunderstorms. Highs in the low 80s and lows in the mid 60s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 77%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 53%
Cloud Coverage
Sunrise: 5:59 AM
Sunset: 8:28 PM
 
Moonrise: 6:45 AM
Moonset: 8:36 PM
Moon Phase:  New
Moonphase:
New
Wind Direction:  SW
Direction: SW (216°)
Speed: 11Mph(18Km, 9Kts)
Details for Monday, July 28
A few thunderstorms possible. Highs in the low 80s and lows in the upper 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 73%
Relative Humidity
Precipitation: 60%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 50%
Cloud Coverage
Sunrise: 6:00 AM
Sunset: 8:27 PM
 
Moonrise: 7:41 AM
Moonset: 9:07 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  WSW
Direction: WSW (247°)
Speed: 13Mph(21Km, 11Kts)
Details for Tuesday, July 29
Partly cloudy. Highs in the low 70s and lows in the low 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 60%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 56%
Cloud Coverage
Sunrise: 6:01 AM
Sunset: 8:26 PM
 
Moonrise: 8:37 AM
Moonset: 9:36 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NNW
Direction: NNW (336°)
Speed: 9Mph(15Km, 8Kts)
Details for Wednesday, July 30
More sun than clouds. Highs in the low 80s and lows in the upper 50s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 61%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 12%
Cloud Coverage
Sunrise: 6:02 AM
Sunset: 8:25 PM
 
Moonrise: 9:33 AM
Moonset: 10:05 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  W
Direction: W (267°)
Speed: 5Mph(8Km, 4Kts)
Details for Thursday, July 31
Times of sun and clouds. Highs in the low 80s and lows in the upper 50s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 63%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 19%
Cloud Coverage
Sunrise: 6:03 AM
Sunset: 8:24 PM
 
Moonrise: 10:30 AM
Moonset: 10:33 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  SE
Direction: SE (139°)
Speed: 4Mph(7Km, 3Kts)
Details for Friday, August 01
Times of sun and clouds. Highs in the mid 80s and lows in the low 60s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 66%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 26%
Cloud Coverage
Sunrise: 6:04 AM
Sunset: 8:23 PM
 
Moonrise: 11:28 AM
Moonset: 11:03 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  SE
Direction: SE (135°)
Speed: 5Mph(8Km, 4Kts)
Details for Saturday, August 02
Times of sun and clouds. Highs in the mid 80s and lows in the low 60s.
UV Index: 9 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 69%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 36%
Cloud Coverage
Sunrise: 6:05 AM
Sunset: 8:22 PM
 
Moonrise: 12:27 PM
Moonset: 11:36 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  ESE
Direction: ESE (118°)
Speed: 5Mph(8Km, 4Kts)
Details for Sunday, August 03
Showers. Highs in the low 80s and lows in the low 60s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 76%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 55%
Cloud Coverage
Sunrise: 6:06 AM
Sunset: 8:21 PM
 
Moonrise: 1:27 PM
Moonset: 12:01 AM
Moon Phase:  First Quarter
Moonphase:
First Quarter
Wind Direction:  SE
Direction: SE (130°)
Speed: 5Mph(8Km, 4Kts)
Daily Forecast Chart
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