As of 08:28 EDT

Weather in Herndon, WV

50°

Herndon, Friday, 30 October, 08:28

Clear. Feels like 49°. High 70°, low 43°.

Pressure30.30 inHg

Wind1.9 mph S

Humidity92%

Visibility6.2 mi

Dew point47°

See detailed hourly forecast

Monthly outlook for Herndon, WV: average high 63.1°, average low 45.8°. That is 2.9° above the climate normal for October. Precipitation is expected on 2 days (about 1.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 14 November (73.9°), the coolest 8 November (36.1°).

63.1°/45.8°

Average high / low

+2.9°

Above normal

2 / 5

Wet days / normal

1.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	62.5°	59.2°	+1.8°
9 November – 18 November	64°	54.8°	+5.1°
19 November – 28 November	at normal	52.5°	—

October records over 66 years

91.6°3 October 2019All-time high

23°27 October 1962All-time low

Climate normals and records are computed from the nearest reference point — Rhodell (7 mi).

Sat, 3166° / 39°

66 °

Herndon, Saturday, 31 October

Overcast. High 66°, low 39°.

Pressure30.42 inHg

Wind7 mph SE

Humidity38%

Visibility6.2 mi

Dew point37°

Sun, 0165° / 52°

65 °

Herndon, Sunday, 1 November

Overcast. High 65°, low 52°.

Pressure30.45 inHg

Wind9.1 mph SE

Humidity39%

Visibility6.2 mi

Dew point35°

Mon, 0264° / 49°

64 °

Herndon, Monday, 2 November

Overcast. High 64°, low 49°.

Pressure30.36 inHg

Wind7.2 mph SE

Humidity45%

Visibility6.2 mi

Dew point40°

Tue, 0372° / 49°

72 °

Herndon, Tuesday, 3 November

Partly cloudy. High 72°, low 49°.

Pressure30.15 inHg

Wind12.7 mph SE

Humidity31%

Visibility—

Dew point37°

Wed, 0468° / 51°

0.02

68 °

Herndon, Wednesday, 4 November

Light rain. High 68°, low 51°.

Pressure29.97 inHg

Wind14 mph SE

Humidity47%

Visibility—

Dew point45°

Thu, 0564° / 51°

1.27

64 °

Herndon, Thursday, 5 November

Heavy rain. High 64°, low 51°.

Pressure29.53 inHg

Wind13.4 mph SE

Humidity74%

Visibility—

Dew point55°

Fri, 0651° / 44°

0.12

51 °

Herndon, Friday, 6 November

Light rain. High 51°, low 44°.

Pressure29.88 inHg

Wind13.8 mph W

Humidity95%

Visibility—

Dew point49°

Sat, 0751° / 37°

51 °

Herndon, Saturday, 7 November

Overcast. High 51°, low 37°.

Pressure30.24 inHg

Wind6.1 mph NW

Humidity44%

Visibility—

Dew point28°

Sun, 0854° / 36°

54 °

Herndon, Sunday, 8 November

Overcast. High 54°, low 36°.

Pressure30.15 inHg

Wind9 mph W

Humidity38%

Visibility—

Dew point27°

Mon, 0953° / 44°

53 °

Herndon, Monday, 9 November

Overcast. High 53°, low 44°.

Pressure30.12 inHg

Wind10.6 mph NW

Humidity68%

Visibility—

Dew point40°

Tue, 1056° / 39°

56 °

Herndon, Tuesday, 10 November

Clear. High 56°, low 39°.

Pressure30.03 inHg

Wind7 mph NW

Humidity50%

Visibility—

Dew point36°

Wed, 1165° / 42°

65 °

Herndon, Wednesday, 11 November

Overcast. High 65°, low 42°.

Pressure29.85 inHg

Wind5.1 mph SE

Humidity32%

Visibility—

Dew point31°

Thu, 1263° / 48°

0.02

63 °

Herndon, Thursday, 12 November

Light rain. High 63°, low 48°.

Pressure29.80 inHg

Wind12.5 mph SW

Humidity69%

Visibility—

Dew point51°

Fri, 1373° / 52°

73 °

Herndon, Friday, 13 November

Clear. High 73°, low 52°.

Pressure30.06 inHg

Wind5.1 mph SW

Humidity54%

Visibility—

Dew point53°

Sat, 1474° / 55°

74 °

Herndon, Saturday, 14 November

Overcast. High 74°, low 55°.

Pressure30.15 inHg

Wind4 mph SE

Humidity49%

Visibility—

Dew point51°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 1554° / 38°

0.11

54 °

Herndon, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.11 in

Chance of precipitation40%

Record high73° (2005)

Record low16° (1969)

Mon, 1654° / 38°

0.13

54 °

Herndon, Monday, 16 November

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.13 in

Chance of precipitation42%

Record high71° (1988)

Record low21° (1995)

Tue, 1754° / 37°

0.09

54 °

Herndon, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high54°

Average low37°

Average precipitation0.09 in

Chance of precipitation32%

Record high73° (1993)

Record low22° (1997)

Wed, 1854° / 37°

0.06

54 °

Herndon, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high54°

Average low37°

Average precipitation0.06 in

Chance of precipitation28%

Record high73° (2016)

Record low20° (2014)

Thu, 1955° / 38°

0.13

55 °

Herndon, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high55°

Average low38°

Average precipitation0.13 in

Chance of precipitation32%

Record high74° (1985)

Record low17° (2008)

Fri, 2053° / 38°

0.06

53 °

Herndon, Friday, 20 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.06 in

Chance of precipitation27%

Record high73° (1991)

Record low21° (2022)

Sat, 2151° / 37°

0.13

51 °

Herndon, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.13 in

Chance of precipitation40%

Record high71° (1994)

Record low21° (1987)

Sun, 2252° / 36°

0.13

52 °

Herndon, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high52°

Average low36°

Average precipitation0.13 in

Chance of precipitation38%

Record high68° (1979)

Record low15° (2008)

Mon, 2352° / 35°

0.09

52 °

Herndon, Monday, 23 November

Climate normal for this date — 60-year average.

Average high52°

Average low35°

Average precipitation0.09 in

Chance of precipitation33%

Record high69° (1999)

Record low18° (1970)

Tue, 2452° / 36°

0.15

52 °

Herndon, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high52°

Average low36°

Average precipitation0.15 in

Chance of precipitation40%

Record high72° (1973)

Record low13° (1970)

Wed, 2553° / 36°

0.07

53 °

Herndon, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high53°

Average low36°

Average precipitation0.07 in

Chance of precipitation35%

Record high67° (1979)

Record low15° (1970)

Thu, 2654° / 36°

0.16

54 °

Herndon, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high54°

Average low36°

Average precipitation0.16 in

Chance of precipitation43%

Record high68° (1990)

Record low11° (1971)

Fri, 2753° / 37°

0.16

53 °

Herndon, Friday, 27 November

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.16 in

Chance of precipitation48%

Record high73° (1990)

Record low17° (1977)

Sat, 2851° / 36°

0.14

51 °

Herndon, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.14 in

Chance of precipitation40%

Record high73° (1990)

Record low17° (2018)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Herndon, WV are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Herndon, WV since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.