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As of 13:08 EST

Weather in Herndon, PA

56°Current weather

Herndon, Monday, 9 November, 13:08

Overcast. Feels like 54°. High 56°, low 47°.

Pressure29.91 inHg
Wind11.5 mph N
Humidity57%
Visibility6.2 mi
Dew point41°

Two-week outlook for Herndon, PA: week one averages a high of 50.8° and week two 51.5°, so both weeks look similar in temperature. Around 2.0 inches of precipitation are expected over the 14 days, across 5 wet days. The nearest weekend, November 14: 42°, with precipitation.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 9 – November 15)50.8°40.3°1.9 in / 3 d—
2nd (November 16 – November 22)51.5°38.2°0.1 in / 2 d—

Weekend weather

Sat, November 14
Light rain
42°34°
0.05 in
Sun, November 15
Light rain
43°37°
0.03 in
Sat, November 21
Light rain
59°43°
0.06 in
Sun, November 22
Light rain
53°47°
0.05 in
Tue, 1064° / 43°0Clear
64 °Clear

Herndon, Tuesday, 10 November

Clear. High 64°, low 43°.

Pressure29.91 inHg
Wind10.7 mph W
Humidity48%
Visibility6.2 mi
Dew point40°
Wed, 1160° / 40°0Overcast
60 °Overcast

Herndon, Wednesday, 11 November

Overcast. High 60°, low 40°.

Pressure29.94 inHg
Wind6.5 mph W
Humidity57%
Visibility6.2 mi
Dew point42°
Thu, 1249° / 45°1.21Rain
49 °Rain

Herndon, Thursday, 12 November

Rain. High 49°, low 45°.

Pressure29.59 inHg
Wind5.2 mph E
Humidity95%
Visibility1.7 mi
Dew point48°
Fri, 1341° / 35°0.57Rain
41 °Rain

Herndon, Friday, 13 November

Rain. High 41°, low 35°.

Pressure29.68 inHg
Wind10.2 mph N
Humidity92%
Visibility3.8 mi
Dew point37°
Sat, 1442° / 34°0.05Light rain
42 °Light rain

Herndon, Saturday, 14 November

Light rain. High 42°, low 34°.

Pressure29.88 inHg
Wind11.3 mph NW
Humidity69%
Visibility—
Dew point30°
Sun, 1543° / 37°0.03Light rain
43 °Light rain

Herndon, Sunday, 15 November

Light rain. High 43°, low 37°.

Pressure29.85 inHg
Wind11.4 mph W
Humidity97%
Visibility—
Dew point39°
Mon, 1648° / 41°0Overcast
48 °Overcast

Herndon, Monday, 16 November

Overcast. High 48°, low 41°.

Pressure29.97 inHg
Wind12.8 mph NW
Humidity61%
Visibility—
Dew point34°
Tue, 1747° / 37°0Overcast
47 °Overcast

Herndon, Tuesday, 17 November

Overcast. High 47°, low 37°.

Pressure30.24 inHg
Wind9.2 mph N
Humidity66%
Visibility—
Dew point33°
Wed, 1849° / 32°0Clear
49 °Clear

Herndon, Wednesday, 18 November

Clear. High 49°, low 32°.

Pressure30.47 inHg
Wind5.3 mph N
Humidity64%
Visibility—
Dew point30°
Thu, 1952° / 32°0Partly cloudy
52 °Partly cloudy

Herndon, Thursday, 19 November

Partly cloudy. High 52°, low 32°.

Pressure30.50 inHg
Wind4 mph SW
Humidity64%
Visibility—
Dew point32°
Fri, 2053° / 35°0Overcast
53 °Overcast

Herndon, Friday, 20 November

Overcast. High 53°, low 35°.

Pressure30.36 inHg
Wind5.2 mph SW
Humidity64%
Visibility—
Dew point33°
Sat, 2159° / 43°0.06Light rain
59 °Light rain

Herndon, Saturday, 21 November

Light rain. High 59°, low 43°.

Pressure30.06 inHg
Wind7.4 mph SW
Humidity87%
Visibility—
Dew point48°
Sun, 2253° / 47°0.05Light rain
53 °Light rain

Herndon, Sunday, 22 November

Light rain. High 53°, low 47°.

Pressure30.06 inHg
Wind3.4 mph N
Humidity71%
Visibility—
Dew point41°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Herndon, PA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.