Monthly outlook for Big Vein, VA: average high 79.8°, average low 61.5°. That is 1.1° above the climate normal for August. Precipitation is expected on 10 days (about 2.5 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 10 August (88.3°), the coolest 21 August (52.9°).
79.8°/61.5°
Average high / low
+1.1°
Above normal
10 / 7
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
79.7°
78°
+1°
18 August – 27 August
79.8°
77.7°
+1.2°
28 August – 6 September
at normal
76.6°
—
August records over 66 years
92.7°16 August 2007All-time high
43.9°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Bluefield (6 mi).
Sun, 0983° / 68°0.05
83 °
Big Vein, Sunday, 9 August
Light rain. High 83°, low 68°.
Pressure30.15 inHg
Wind4.5 mph W
Humidity62%
Visibility6.2 mi
Dew point65°
Mon, 1088° / 68°0.02
88 °
Big Vein, Monday, 10 August
Light rain. High 88°, low 68°.
Pressure30.12 inHg
Wind8.2 mph W
Humidity54%
Visibility6.2 mi
Dew point63°
Tue, 1181° / 65°0.34
81 °
Big Vein, Tuesday, 11 August
Rain. High 81°, low 65°.
Pressure30.06 inHg
Wind10 mph W
Humidity67%
Visibility6.2 mi
Dew point67°
Wed, 1285° / 62°0.33
85 °
Big Vein, Wednesday, 12 August
Light rain. High 85°, low 62°.
Pressure29.94 inHg
Wind6.6 mph SW
Humidity90%
Visibility6.2 mi
Dew point69°
Thu, 1380° / 60°0.05
80 °
Big Vein, Thursday, 13 August
Light rain. High 80°, low 60°.
Pressure30.00 inHg
Wind9.7 mph NW
Humidity75%
Visibility—
Dew point64°
Fri, 1466° / 61°0.67
66 °
Big Vein, Friday, 14 August
Rain. High 66°, low 61°.
Pressure30.06 inHg
Wind4.2 mph S
Humidity99%
Visibility—
Dew point65°
Sat, 1579° / 57°0
79 °
Big Vein, Saturday, 15 August
Mostly clear. High 79°, low 57°.
Pressure30.21 inHg
Wind5.7 mph NW
Humidity31%
Visibility—
Dew point43°
Sun, 1679° / 62°0
79 °
Big Vein, Sunday, 16 August
Light rain. High 79°, low 62°.
Pressure30.15 inHg
Wind5.7 mph W
Humidity44%
Visibility—
Dew point53°
Mon, 1776° / 63°0.55
76 °
Big Vein, Monday, 17 August
Rain. High 76°, low 63°.
Pressure30.06 inHg
Wind4.4 mph W
Humidity81%
Visibility—
Dew point67°
Tue, 1880° / 63°0.07
80 °
Big Vein, Tuesday, 18 August
Light rain. High 80°, low 63°.
Pressure30.00 inHg
Wind8.1 mph NW
Humidity59%
Visibility—
Dew point62°
Wed, 1985° / 62°0.01
85 °
Big Vein, Wednesday, 19 August
Light rain. High 85°, low 62°.
Pressure29.88 inHg
Wind7.2 mph NW
Humidity43%
Visibility—
Dew point58°
Thu, 2073° / 53°0.1
73 °
Big Vein, Thursday, 20 August
Light rain. High 73°, low 53°.
Pressure29.91 inHg
Wind11.6 mph NW
Humidity60%
Visibility—
Dew point54°
Fri, 2175° / 53°0
75 °
Big Vein, Friday, 21 August
Partly cloudy. High 75°, low 53°.
Pressure30.00 inHg
Wind7.3 mph NW
Humidity46%
Visibility—
Dew point49°
Sat, 2281° / 57°0
81 °
Big Vein, Saturday, 22 August
Partly cloudy. High 81°, low 57°.
Pressure30.03 inHg
Wind6.7 mph SW
Humidity44%
Visibility—
Dew point53°
Sun, 2386° / 65°0.15
86 °
Big Vein, Sunday, 23 August
Light rain. High 86°, low 65°.
Pressure30.03 inHg
Wind11.3 mph W
Humidity52%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2477° / 61°0.1
77 °
Big Vein, Monday, 24 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.1 in
Chance of precipitation38%
Record high90° (2007)
Record low49° (1997)
Tue, 2578° / 61°0.09
78 °
Big Vein, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation38%
Record high87° (2007)
Record low51° (1986)
Wed, 2678° / 61°0.08
78 °
Big Vein, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.08 in
Chance of precipitation43%
Record high86° (2024)
Record low51° (2025)
Thu, 2778° / 62°0.13
78 °
Big Vein, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation45%
Record high87° (2024)
Record low49° (2025)
Fri, 2878° / 62°0.1
78 °
Big Vein, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.1 in
Chance of precipitation40%
Record high87° (2024)
Record low49° (1968)
Sat, 2978° / 62°0.07
78 °
Big Vein, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation40%
Record high88° (1973)
Record low44° (1986)
Sun, 3078° / 61°0.1
78 °
Big Vein, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.1 in
Chance of precipitation40%
Record high87° (1973)
Record low47° (1965)
Mon, 3177° / 62°0.13
77 °
Big Vein, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.13 in
Chance of precipitation43%
Record high87° (2024)
Record low48° (1976)
Tue, 0176° / 61°0.16
76 °
Big Vein, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.16 in
Chance of precipitation47%
Record high87° (1973)
Record low52° (1999)
Wed, 0277° / 60°0.08
77 °
Big Vein, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.08 in
Chance of precipitation37%
Record high87° (1973)
Record low45° (1967)
Thu, 0377° / 60°0.1
77 °
Big Vein, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.1 in
Chance of precipitation45%
Record high87° (1973)
Record low46° (1967)
Fri, 0476° / 61°0.14
76 °
Big Vein, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.14 in
Chance of precipitation47%
Record high88° (2019)
Record low47° (1997)
Sat, 0575° / 60°0.19
75 °
Big Vein, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.19 in
Chance of precipitation40%
Record high86° (1975)
Record low46° (1997)
Sun, 0675° / 59°0.14
75 °
Big Vein, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.14 in
Chance of precipitation37%
Record high86° (2023)
Record low47° (1984)
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 Big Vein, 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 Big Vein, 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.