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Herndon, PA

68°F
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Herndon

Pennsylvania

68°
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Herndon, PA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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1 AM

68°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindNNW 5 mph

Air QualityFair

Wind Gusts5 mph

Humidity95%

Indoor Humidity95% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling1000 ft

2 AM

67°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 69%
Chevron down
Thunderstorms

WindNNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity96%

Indoor Humidity94% (Humid)

Dew Point66° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Rain0.06 in

Visibility4 mi

Cloud Ceiling1100 ft

3 AM

66°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 69%
Chevron down
Thunderstorms

WindNNW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity95%

Indoor Humidity90% (Humid)

Dew Point65° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Rain0.06 in

Visibility2 mi

Cloud Ceiling1100 ft

4 AM

67°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Fog

WindNNW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity91%

Indoor Humidity88% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility1.00 mi

Cloud Ceiling1000 ft

5 AM

66°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Fog

WindNNW 7 mph

Air QualityFair

Wind Gusts7 mph

Humidity92%

Indoor Humidity86% (Humid)

Dew Point64° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility0.50 mi

Cloud Ceiling500 ft

6 AM

66°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Fog

RealFeel Shade™63°

WindNNW 7 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts7 mph

Humidity89%

Indoor Humidity83% (Humid)

Dew Point63° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover92%

Visibility0.50 mi

Cloud Ceiling500 ft

7 AM

65°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 37%
Chevron down
Fog

RealFeel Shade™63°

WindN 7 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts8 mph

Humidity90%

Indoor Humidity81% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility0.50 mi

Cloud Ceiling500 ft

8 AM

65°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™63°

WindN 8 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts8 mph

Humidity89%

Indoor Humidity79% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility2 mi

Cloud Ceiling1100 ft

9 AM

66°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 55%
Chevron down
Rain

RealFeel Shade™62°

WindN 8 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts9 mph

Humidity84%

Indoor Humidity78% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.01 in

Visibility4 mi

Cloud Ceiling1300 ft

10 AM

66°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™64°

WindN 8 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts9 mph

Humidity81%

Indoor Humidity77% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling1500 ft

11 AM

67°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™65°

WindN 9 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts12 mph

Humidity78%

Indoor Humidity76% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling1700 ft

12 PM

68°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Rain

RealFeel Shade™64°

WindN 9 mph

Air QualityFair

Max UV Index2.5 (Low)

Wind Gusts13 mph

Humidity75%

Indoor Humidity75% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.01 in

Visibility6 mi

Cloud Ceiling3200 ft

1 PM

70°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Cloudy

RealFeel Shade™67°

WindN 9 mph

Air QualityPoor

Max UV Index3.2 (Moderate)

Wind Gusts14 mph

Humidity71%

Indoor Humidity71% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling4800 ft

2 PM

70°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Mostly cloudy

RealFeel Shade™67°

WindN 9 mph

Air QualityPoor

Max UV Index4.1 (Moderate)

Wind Gusts15 mph

Humidity68%

Indoor Humidity68% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover80%

Visibility0.05 mi

Cloud Ceiling6300 ft

3 PM

72°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

RealFeel Shade™69°

WindN 9 mph

Air QualityPoor

Max UV Index5.1 (Moderate)

Wind Gusts15 mph

Humidity63%

Indoor Humidity63% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover64%

Visibility10 mi

Cloud Ceiling14200 ft

4 PM

74°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

RealFeel Shade™71°

WindN 9 mph

Air QualityPoor

Max UV Index4.7 (Moderate)

Wind Gusts15 mph

Humidity59%

Indoor Humidity59% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover51%

Visibility10 mi

Cloud Ceiling22100 ft

5 PM

75°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Partly sunny

RealFeel Shade™72°

WindN 10 mph

Air QualityPoor

Max UV Index3.5 (Moderate)

Wind Gusts15 mph

Humidity55%

Indoor Humidity55% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover39%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

74°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Mostly sunny

RealFeel Shade™71°

WindN 9 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts13 mph

Humidity56%

Indoor Humidity56% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover27%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

73°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 1%
Chevron down
Mostly sunny

RealFeel Shade™70°

WindN 8 mph

Air QualityPoor

Max UV Index1.3 (Low)

Wind Gusts12 mph

Humidity58%

Indoor Humidity58% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover17%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

71°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™69°

WindN 7 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts9 mph

Humidity61%

Indoor Humidity61% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

68°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindN 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity67%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover4%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

66°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindN 7 mph

Air QualityPoor

Wind Gusts7 mph

Humidity71%

Indoor Humidity65% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

63°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindN 7 mph

Air QualityFair

Wind Gusts7 mph

Humidity76%

Indoor Humidity64% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Herndon

AccuWeather's hourly forecast for Herndon provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 68° with a RealFeel® of 69°, cloudy with a 49% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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