Monthly outlook for Sully Plantation, VA: average high 90.1°, average low 68.2°. That is 3.1° above the climate normal for August. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 24 August (102.3°), the coolest 16 August (57.2°).
90.1°/68.2°
Average high / low
+3.1°
Above normal
4 / 6
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
86°
85.2°
+0.5°
19 August – 28 August
96.8°
83.9°
+7.2°
29 August – 7 September
at normal
82.7°
—
August records over 66 years
100.6°17 August 1988All-time high
49.3°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — McNair (3 mi).
Mon, 1092° / 73°0.01
92 °
Sully Plantation, Monday, 10 August
Light rain. High 92°, low 73°.
Pressure30.00 inHg
Wind3.9 mph W
Humidity38%
Visibility6.2 mi
Dew point63°
Tue, 1193° / 70°0.07
93 °
Sully Plantation, Tuesday, 11 August
Rain. High 93°, low 70°.
Pressure29.94 inHg
Wind9.6 mph NW
Humidity51%
Visibility6.2 mi
Dew point66°
Wed, 1291° / 68°0.42
91 °
Sully Plantation, Wednesday, 12 August
Rain. High 91°, low 68°.
Pressure29.80 inHg
Wind7.8 mph W
Humidity54%
Visibility6.2 mi
Dew point65°
Thu, 1386° / 69°0
86 °
Sully Plantation, Thursday, 13 August
Light rain. High 86°, low 69°.
Pressure29.85 inHg
Wind13 mph NW
Humidity37%
Visibility—
Dew point55°
Fri, 1480° / 63°0
80 °
Sully Plantation, Friday, 14 August
Overcast. High 80°, low 63°.
Pressure30.06 inHg
Wind7.1 mph SW
Humidity36%
Visibility—
Dew point48°
Sat, 1581° / 59°0
81 °
Sully Plantation, Saturday, 15 August
Overcast. High 81°, low 59°.
Pressure30.15 inHg
Wind9.6 mph NW
Humidity33%
Visibility—
Dew point45°
Sun, 1676° / 57°0
76 °
Sully Plantation, Sunday, 16 August
Overcast. High 76°, low 57°.
Pressure30.15 inHg
Wind5.2 mph N
Humidity37%
Visibility—
Dew point46°
Mon, 1784° / 68°0.04
84 °
Sully Plantation, Monday, 17 August
Light rain. High 84°, low 68°.
Pressure29.97 inHg
Wind4.7 mph SE
Humidity49%
Visibility—
Dew point61°
Tue, 1887° / 65°0
87 °
Sully Plantation, Tuesday, 18 August
Clear. High 87°, low 65°.
Pressure30.00 inHg
Wind4.3 mph NE
Humidity38%
Visibility—
Dew point56°
Wed, 1989° / 66°0
89 °
Sully Plantation, Wednesday, 19 August
Clear. High 89°, low 66°.
Pressure30.06 inHg
Wind7.4 mph SE
Humidity34%
Visibility—
Dew point55°
Thu, 2093° / 67°0
93 °
Sully Plantation, Thursday, 20 August
Partly cloudy. High 93°, low 67°.
Pressure30.00 inHg
Wind9.6 mph SE
Humidity36%
Visibility—
Dew point58°
Fri, 21100° / 71°0.42
100 °
Sully Plantation, Friday, 21 August
Rain. High 100°, low 71°.
Pressure29.83 inHg
Wind7.7 mph S
Humidity35%
Visibility—
Dew point63°
Sat, 2297° / 75°0.01
97 °
Sully Plantation, Saturday, 22 August
Light rain. High 97°, low 75°.
Pressure29.88 inHg
Wind9.7 mph N
Humidity42%
Visibility—
Dew point66°
Sun, 2399° / 74°0.04
99 °
Sully Plantation, Sunday, 23 August
Light rain. High 99°, low 74°.
Pressure29.91 inHg
Wind7.1 mph SE
Humidity38%
Visibility—
Dew point65°
Mon, 24102° / 73°0.2
102 °
Sully Plantation, Monday, 24 August
Rain. High 102°, low 73°.
Pressure29.94 inHg
Wind6.6 mph S
Humidity38%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 66°0.07
84 °
Sully Plantation, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.07 in
Chance of precipitation27%
Record high96° (1968)
Record low55° (1971)
Wed, 2685° / 66°0.04
85 °
Sully Plantation, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low66°
Average precipitation0.04 in
Chance of precipitation18%
Record high95° (1975)
Record low55° (1963)
Thu, 2785° / 67°0.14
85 °
Sully Plantation, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.14 in
Chance of precipitation37%
Record high96° (1987)
Record low58° (1969)
Fri, 2885° / 67°0.15
85 °
Sully Plantation, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.15 in
Chance of precipitation45%
Record high97° (2024)
Record low57° (2025)
Sat, 2984° / 67°0.11
84 °
Sully Plantation, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation33%
Record high96° (1973)
Record low49° (1986)
Sun, 3084° / 66°0.06
84 °
Sully Plantation, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.06 in
Chance of precipitation25%
Record high96° (2022)
Record low51° (1986)
Mon, 3183° / 66°0.07
83 °
Sully Plantation, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.07 in
Chance of precipitation27%
Record high96° (1973)
Record low53° (1976)
Tue, 0182° / 65°0.11
82 °
Sully Plantation, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation33%
Record high96° (1973)
Record low55° (1967)
Wed, 0283° / 64°0.09
83 °
Sully Plantation, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.09 in
Chance of precipitation35%
Record high96° (1980)
Record low53° (2009)
Thu, 0383° / 65°0.09
83 °
Sully Plantation, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.09 in
Chance of precipitation27%
Record high98° (2023)
Record low50° (1967)
Fri, 0482° / 65°0.1
82 °
Sully Plantation, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.1 in
Chance of precipitation35%
Record high99° (2023)
Record low53° (2024)
Sat, 0582° / 64°0.15
82 °
Sully Plantation, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.15 in
Chance of precipitation30%
Record high99° (2023)
Record low52° (1997)
Sun, 0681° / 64°0.27
81 °
Sully Plantation, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.27 in
Chance of precipitation32%
Record high98° (2023)
Record low51° (2000)
Mon, 0782° / 63°0.09
82 °
Sully Plantation, Monday, 7 September
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.09 in
Chance of precipitation30%
Record high93° (2016)
Record low50° (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 Sully Plantation, 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 Sully Plantation, 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.