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As of 02:49 EDT

Weather in Herndon, PA

45°Current weather

Herndon, Saturday, 31 October, 02:49

Partly cloudy. Feels like 42°. High 60°, low 36°.

Pressure30.39 inHg
Wind4.3 mph NW
Humidity78%
Visibility6.2 mi
Dew point38°

Two-week outlook for Herndon, PA: week one averages a high of 63.3° and week two 59.1°, so week two runs 4.2° cooler than week one. Around 0.4 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, October 31: 60°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 31 – November 6)63.3°44.7°0.3 in / 2 d—
2nd (November 7 – November 13)59.1°43.3°0.1 in / 1 d—

Weekend weather

Sat, October 31
Overcast
60°36°
no precip.
Sun, November 1
Overcast
63°34°
no precip.
Sat, November 7
Light rain
59°52°
0.06 in
Sun, November 8
Overcast
58°44°
no precip.
Sun, 0163° / 34°0Overcast
63 °Overcast

Herndon, Sunday, 1 November

Overcast. High 63°, low 34°.

Pressure30.56 inHg
Wind1.9 mph S
Humidity58%
Visibility6.2 mi
Dew point40°
Mon, 0261° / 43°0Overcast
61 °Overcast

Herndon, Monday, 2 November

Overcast. High 61°, low 43°.

Pressure30.42 inHg
Wind4 mph S
Humidity59%
Visibility6.2 mi
Dew point44°
Tue, 0363° / 43°0Overcast
63 °Overcast

Herndon, Tuesday, 3 November

Overcast. High 63°, low 43°.

Pressure30.33 inHg
Wind5.4 mph S
Humidity60%
Visibility6.2 mi
Dew point44°
Wed, 0467° / 48°0Mostly clear
67 °Mostly clear

Herndon, Wednesday, 4 November

Mostly clear. High 67°, low 48°.

Pressure30.24 inHg
Wind11.7 mph S
Humidity78%
Visibility—
Dew point51°
Thu, 0565° / 52°0.04Light rain
65 °Light rain

Herndon, Thursday, 5 November

Light rain. High 65°, low 52°.

Pressure30.03 inHg
Wind10.8 mph SE
Humidity97%
Visibility—
Dew point58°
Fri, 0664° / 58°0.26Rain
64 °Rain

Herndon, Friday, 6 November

Rain. High 64°, low 58°.

Pressure29.94 inHg
Wind3.8 mph S
Humidity88%
Visibility—
Dew point59°
Sat, 0759° / 52°0.06Light rain
59 °Light rain

Herndon, Saturday, 7 November

Light rain. High 59°, low 52°.

Pressure29.97 inHg
Wind12.1 mph N
Humidity84%
Visibility—
Dew point52°
Sun, 0858° / 44°0Overcast
58 °Overcast

Herndon, Sunday, 8 November

Overcast. High 58°, low 44°.

Pressure30.12 inHg
Wind13 mph N
Humidity68%
Visibility—
Dew point42°
Mon, 0958° / 40°0Overcast
58 °Overcast

Herndon, Monday, 9 November

Overcast. High 58°, low 40°.

Pressure30.09 inHg
Wind4.4 mph W
Humidity69%
Visibility—
Dew point39°
Tue, 1061° / 42°0Clear
61 °Clear

Herndon, Tuesday, 10 November

Clear. High 61°, low 42°.

Pressure29.94 inHg
Wind9.9 mph NW
Humidity67%
Visibility—
Dew point42°
Wed, 1163° / 42°0Clear
63 °Clear

Herndon, Wednesday, 11 November

Clear. High 63°, low 42°.

Pressure29.85 inHg
Wind7.4 mph W
Humidity65%
Visibility—
Dew point42°
Thu, 1257° / 44°0Clear
57 °Clear

Herndon, Thursday, 12 November

Clear. High 57°, low 44°.

Pressure29.77 inHg
Wind7.7 mph N
Humidity69%
Visibility—
Dew point45°
Fri, 1357° / 41°0.01Light rain
57 °Light rain

Herndon, Friday, 13 November

Light rain. High 57°, low 41°.

Pressure29.62 inHg
Wind11.5 mph W
Humidity73%
Visibility—
Dew point43°

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.