Monthly outlook for Arna Valley, VA: average high 62.4°, average low 49.5°. That is 1.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 30 October (72°), the coolest 8 November (40.8°).
62.4°/49.5°
Average high / low
+1.2°
Above normal
4 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
65°
61.5°
+1.9°
6 November – 15 November
58.1°
56.8°
+0.7°
16 November – 25 November
at normal
53.2°
—
October records over 66 years
94.5°2 October 2019All-time high
29.3°28 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Alexandria (2 mi).
Wed, 2867° / 47°0
67 °
Arna Valley, Wednesday, 28 October
Overcast. High 67°, low 47°.
Pressure30.42 inHg
Wind4.3 mph E
Humidity60%
Visibility6.2 mi
Dew point47°
Thu, 2969° / 49°0
69 °
Arna Valley, Thursday, 29 October
Clear. High 69°, low 49°.
Pressure30.27 inHg
Wind4 mph S
Humidity78%
Visibility2.0 mi
Dew point56°
Fri, 3072° / 54°0
72 °
Arna Valley, Friday, 30 October
Clear. High 72°, low 54°.
Pressure30.18 inHg
Wind9.5 mph NW
Humidity57%
Visibility6.2 mi
Dew point54°
Sat, 3163° / 49°0
63 °
Arna Valley, Saturday, 31 October
Overcast. High 63°, low 49°.
Pressure30.42 inHg
Wind6.9 mph NW
Humidity58%
Visibility—
Dew point42°
Sun, 0168° / 49°0
68 °
Arna Valley, Sunday, 1 November
Partly cloudy. High 68°, low 49°.
Pressure30.42 inHg
Wind7.6 mph S
Humidity60%
Visibility—
Dew point46°
Mon, 0262° / 58°0.58
62 °
Arna Valley, Monday, 2 November
Rain. High 62°, low 58°.
Pressure29.97 inHg
Wind8.3 mph SE
Humidity91%
Visibility—
Dew point58°
Tue, 0360° / 54°0.17
60 °
Arna Valley, Tuesday, 3 November
Light rain. High 60°, low 54°.
Pressure29.97 inHg
Wind8.9 mph NE
Humidity92%
Visibility—
Dew point58°
Wed, 0458° / 49°0
58 °
Arna Valley, Wednesday, 4 November
Overcast. High 58°, low 49°.
Pressure30.30 inHg
Wind7.3 mph E
Humidity59%
Visibility—
Dew point38°
Thu, 0561° / 51°0.34
61 °
Arna Valley, Thursday, 5 November
Rain. High 61°, low 51°.
Pressure30.00 inHg
Wind6.6 mph E
Humidity92%
Visibility—
Dew point51°
Fri, 0660° / 53°0
60 °
Arna Valley, Friday, 6 November
Partly cloudy. High 60°, low 53°.
Pressure29.74 inHg
Wind10.3 mph NW
Humidity80%
Visibility—
Dew point53°
Sat, 0753° / 45°0
53 °
Arna Valley, Saturday, 7 November
Mostly clear. High 53°, low 45°.
Pressure30.15 inHg
Wind11.4 mph N
Humidity48%
Visibility—
Dew point29°
Sun, 0856° / 41°0
56 °
Arna Valley, Sunday, 8 November
Partly cloudy. High 56°, low 41°.
Pressure30.36 inHg
Wind6 mph SW
Humidity49%
Visibility—
Dew point30°
Mon, 0960° / 45°0
60 °
Arna Valley, Monday, 9 November
Overcast. High 60°, low 45°.
Pressure30.39 inHg
Wind3.4 mph S
Humidity49%
Visibility—
Dew point36°
Tue, 1061° / 48°0
61 °
Arna Valley, Tuesday, 10 November
Overcast. High 61°, low 48°.
Pressure30.27 inHg
Wind6.8 mph SW
Humidity56%
Visibility—
Dew point39°
Wed, 1158° / 51°0.14
58 °
Arna Valley, Wednesday, 11 November
Light rain. High 58°, low 51°.
Pressure30.00 inHg
Wind7.4 mph S
Humidity91%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1255° / 42°0.22
55 °
Arna Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.22 in
Chance of precipitation33%
Record high71° (1964)
Record low29° (1987)
Fri, 1354° / 39°0.1
54 °
Arna Valley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation33%
Record high73° (1964)
Record low24° (2019)
Sat, 1455° / 39°0.06
55 °
Arna Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.06 in
Chance of precipitation12%
Record high75° (1985)
Record low25° (1986)
Sun, 1556° / 40°0.1
56 °
Arna Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.1 in
Chance of precipitation27%
Record high77° (1993)
Record low28° (1996)
Mon, 1655° / 40°0.12
55 °
Arna Valley, Monday, 16 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.12 in
Chance of precipitation30%
Record high73° (2005)
Record low25° (1967)
Tue, 1754° / 39°0.08
54 °
Arna Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation28%
Record high70° (1987)
Record low28° (1995)
Wed, 1854° / 39°0.06
54 °
Arna Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (2021)
Record low27° (2014)
Thu, 1954° / 39°0.1
54 °
Arna Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation25%
Record high70° (1985)
Record low23° (2014)
Fri, 2054° / 39°0.06
54 °
Arna Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.06 in
Chance of precipitation22%
Record high75° (1985)
Record low26° (2022)
Sat, 2153° / 38°0.09
53 °
Arna Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (1991)
Record low24° (2022)
Sun, 2252° / 38°0.1
52 °
Arna Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation28%
Record high72° (2007)
Record low24° (1964)
Mon, 2351° / 37°0.06
51 °
Arna Valley, Monday, 23 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation23%
Record high70° (1979)
Record low19° (1989)
Tue, 2453° / 37°0.13
53 °
Arna Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.13 in
Chance of precipitation28%
Record high71° (1979)
Record low13° (1989)
Wed, 2552° / 37°0.1
52 °
Arna Valley, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.1 in
Chance of precipitation28%
Record high72° (1973)
Record low19° (1989)
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 Arna Valley, VA 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 Arna Valley, VA 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.