Monthly outlook for Herndon Heights, WV: average high 61.6°, average low 41.3°. That is 0.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 27 October (69.6°), the coolest 4 November (30.5°).
61.6°/41.3°
Average high / low
+0.3°
Above normal
2 / 5
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
64.5°
61.7°
+1.5°
31 October – 9 November
56.8°
58.9°
-1.2°
10 November – 19 November
at normal
54.4°
—
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 (8 mi).
Thu, 2265° / 37°0
65 °
Herndon Heights, Thursday, 22 October
Clear. High 65°, low 37°.
Pressure30.18 inHg
Wind5.3 mph N
Humidity45%
Visibility6.2 mi
Dew point40°
Fri, 2367° / 35°0
67 °
Herndon Heights, Friday, 23 October
Clear. High 67°, low 35°.
Pressure30.30 inHg
Wind2.7 mph SE
Humidity38%
Visibility6.2 mi
Dew point37°
Sat, 2465° / 44°0
65 °
Herndon Heights, Saturday, 24 October
Clear. High 65°, low 44°.
Pressure30.45 inHg
Wind6 mph SE
Humidity53%
Visibility6.2 mi
Dew point42°
Sun, 2562° / 43°0
62 °
Herndon Heights, Sunday, 25 October
Clear. High 62°, low 43°.
Pressure30.47 inHg
Wind7.8 mph SE
Humidity47%
Visibility6.2 mi
Dew point37°
Mon, 2667° / 43°0
67 °
Herndon Heights, Monday, 26 October
Clear. High 67°, low 43°.
Pressure30.33 inHg
Wind6.5 mph SE
Humidity43%
Visibility—
Dew point40°
Tue, 2770° / 42°0
70 °
Herndon Heights, Tuesday, 27 October
Partly cloudy. High 70°, low 42°.
Pressure30.24 inHg
Wind6.5 mph SE
Humidity36%
Visibility—
Dew point38°
Wed, 2864° / 50°0
64 °
Herndon Heights, Wednesday, 28 October
Overcast. High 64°, low 50°.
Pressure30.15 inHg
Wind6.7 mph W
Humidity50%
Visibility—
Dew point43°
Thu, 2954° / 44°0.02
54 °
Herndon Heights, Thursday, 29 October
Light rain. High 54°, low 44°.
Pressure30.12 inHg
Wind4.7 mph NE
Humidity74%
Visibility—
Dew point45°
Fri, 3064° / 47°0
64 °
Herndon Heights, Friday, 30 October
Clear. High 64°, low 47°.
Pressure30.21 inHg
Wind4.9 mph SE
Humidity51%
Visibility—
Dew point43°
Sat, 3165° / 42°0
65 °
Herndon Heights, Saturday, 31 October
Partly cloudy. High 65°, low 42°.
Pressure30.27 inHg
Wind8.4 mph SE
Humidity34%
Visibility—
Dew point33°
Sun, 0165° / 45°0
65 °
Herndon Heights, Sunday, 1 November
Overcast. High 65°, low 45°.
Pressure30.24 inHg
Wind7.8 mph SE
Humidity38%
Visibility—
Dew point36°
Mon, 0257° / 47°0.27
57 °
Herndon Heights, Monday, 2 November
Light rain. High 57°, low 47°.
Pressure30.00 inHg
Wind10.1 mph NW
Humidity89%
Visibility—
Dew point53°
Tue, 0344° / 34°0
44 °
Herndon Heights, Tuesday, 3 November
Partly cloudy. High 44°, low 34°.
Pressure30.24 inHg
Wind13.4 mph NW
Humidity45%
Visibility—
Dew point23°
Wed, 0456° / 31°0
56 °
Herndon Heights, Wednesday, 4 November
Mostly clear. High 56°, low 31°.
Pressure30.15 inHg
Wind6.3 mph SW
Humidity39%
Visibility—
Dew point28°
Thu, 0553° / 43°0.39
53 °
Herndon Heights, Thursday, 5 November
Rain. High 53°, low 43°.
Pressure29.80 inHg
Wind11.3 mph SW
Humidity88%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0657° / 41°0.07
57 °
Herndon Heights, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.07 in
Chance of precipitation28%
Record high77° (2024)
Record low27° (1967)
Sat, 0758° / 41°0.1
58 °
Herndon Heights, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.1 in
Chance of precipitation37%
Record high73° (2024)
Record low25° (1967)
Sun, 0857° / 40°0.07
57 °
Herndon Heights, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high57°
Average low40°
Average precipitation0.07 in
Chance of precipitation28%
Record high75° (2023)
Record low24° (1976)
Mon, 0958° / 41°0.08
58 °
Herndon Heights, Monday, 9 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.08 in
Chance of precipitation27%
Record high75° (1975)
Record low25° (1976)
Tue, 1057° / 41°0.14
57 °
Herndon Heights, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.14 in
Chance of precipitation42%
Record high76° (2020)
Record low25° (2025)
Wed, 1156° / 39°0.13
56 °
Herndon Heights, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.13 in
Chance of precipitation28%
Record high76° (2020)
Record low23° (2018)
Thu, 1254° / 39°0.16
54 °
Herndon Heights, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.16 in
Chance of precipitation47%
Record high68° (1964)
Record low19° (2019)
Fri, 1353° / 37°0.05
53 °
Herndon Heights, Friday, 13 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.05 in
Chance of precipitation30%
Record high73° (1989)
Record low13° (2019)
Sat, 1454° / 36°0.07
54 °
Herndon Heights, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.07 in
Chance of precipitation28%
Record high77° (1993)
Record low15° (1976)
Sun, 1554° / 38°0.11
54 °
Herndon Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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)
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 Heights, 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 Heights, 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.