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As of 13:30 EST

Weather in Herndon, PA

71°Current weather

Herndon, Friday, 6 November, 13:30

Overcast. Feels like 70°. High 71°, low 57°.

Pressure29.80 inHg
Wind4.6 mph W
Humidity52%
Visibility6.2 mi
Dew point52°

Two-week outlook for Herndon, PA: week one averages a high of 57.5° and week two 52.3°, so week two runs 5.1° cooler than week one. Around 0.0 inches of precipitation are expected over the 14 days, across 0 wet days. The nearest weekend, November 7: 58°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (November 6 – November 12)57.5°44.2°0.0 in / 0 d—
2nd (November 13 – November 19)52.3°33.4°0.0 in / 0 d—

Weekend weather

Sat, November 7
Overcast
58°44°
no precip.
Sun, November 8
Clear
58°47°
no precip.
Sat, November 14
Mostly clear
42°25°
no precip.
Sun, November 15
Partly cloudy
48°27°
no precip.
Sat, 0758° / 44°0Overcast
58 °Overcast

Herndon, Saturday, 7 November

Overcast. High 58°, low 44°.

Pressure29.91 inHg
Wind10.6 mph NW
Humidity50%
Visibility6.2 mi
Dew point35°
Sun, 0858° / 47°0Clear
58 °Clear

Herndon, Sunday, 8 November

Clear. High 58°, low 47°.

Pressure29.97 inHg
Wind8.9 mph W
Humidity48%
Visibility6.2 mi
Dew point36°
Mon, 0954° / 46°0Overcast
54 °Overcast

Herndon, Monday, 9 November

Overcast. High 54°, low 46°.

Pressure29.91 inHg
Wind16.2 mph NW
Humidity48%
Visibility6.2 mi
Dew point34°
Tue, 1061° / 40°0Overcast
61 °Overcast

Herndon, Tuesday, 10 November

Overcast. High 61°, low 40°.

Pressure29.91 inHg
Wind9.2 mph SW
Humidity53%
Visibility6.2 mi
Dew point39°
Wed, 1155° / 41°0Overcast
55 °Overcast

Herndon, Wednesday, 11 November

Overcast. High 55°, low 41°.

Pressure29.94 inHg
Wind9 mph NW
Humidity70%
Visibility—
Dew point40°
Thu, 1247° / 34°0Overcast
47 °Overcast

Herndon, Thursday, 12 November

Overcast. High 47°, low 34°.

Pressure29.94 inHg
Wind10.7 mph N
Humidity62%
Visibility—
Dew point33°
Fri, 1342° / 26°0Overcast
42 °Overcast

Herndon, Friday, 13 November

Overcast. High 42°, low 26°.

Pressure30.03 inHg
Wind6 mph N
Humidity52%
Visibility—
Dew point20°
Sat, 1442° / 25°0Mostly clear
42 °Mostly clear

Herndon, Saturday, 14 November

Mostly clear. High 42°, low 25°.

Pressure30.06 inHg
Wind8.1 mph NW
Humidity51%
Visibility—
Dew point20°
Sun, 1548° / 27°0Partly cloudy
48 °Partly cloudy

Herndon, Sunday, 15 November

Partly cloudy. High 48°, low 27°.

Pressure30.24 inHg
Wind11.3 mph W
Humidity59%
Visibility—
Dew point26°
Mon, 1660° / 35°0Clear
60 °Clear

Herndon, Monday, 16 November

Clear. High 60°, low 35°.

Pressure30.21 inHg
Wind11.1 mph W
Humidity52%
Visibility—
Dew point33°
Tue, 1758° / 40°0Overcast
58 °Overcast

Herndon, Tuesday, 17 November

Overcast. High 58°, low 40°.

Pressure30.33 inHg
Wind7.8 mph W
Humidity54%
Visibility—
Dew point34°
Wed, 1859° / 42°0Overcast
59 °Overcast

Herndon, Wednesday, 18 November

Overcast. High 59°, low 42°.

Pressure30.45 inHg
Wind8.5 mph NW
Humidity60%
Visibility—
Dew point37°
Thu, 1957° / 39°0Mostly clear
57 °Mostly clear

Herndon, Thursday, 19 November

Mostly clear. High 57°, low 39°.

Pressure30.65 inHg
Wind8.5 mph S
Humidity62%
Visibility—
Dew point36°

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.